THE BACKGROUND I have made a finite element model of the intervertebral disc of the human spine and used the Holzapfel-Gasser-Ogden (HGO) material model to model its mechanical behavior. I have used this material model because two families of fibers can be found in the intervertebral disc (see Figure 1) and the HGO strain energy function has a component to represent the behavior of these fibers. Figure 1. Criss-cross pattern of the fibers of the intervertebral disc. To define the direction of

Welcome to the July SIMULIA newsletter. This newsletter round-up brings you the latest news and updates from the SIMULIA portfolio. This month, we’re excited to share a selection of updates, resources, and ideas to support your work in simulation. Inside, you’ll find technical blogs, on-demand webinars and highlights from recent events - each chosen to help you get the most from your simulation tools. Whether your focus is Structures, Electromagnetics, Fluids, Multibody Systems (MBS),

Hi, I get the following error message when opening the property module from the Abaqus/CAE: Not sure if my installation is faulty or if a file is corrupted? To clarify, I can open Abaqus/CAE, open all the other modules to define my analysis, but only when opening the property module to define the materials for the analysis, Abaqus exits with the error log as shown above.

Ready to master new skills and take your career to the next level? Join our public training classes led by experienced partners and 3DS experts. We offer both live online sessions and immersive (in-person lessons and workshops) to fit various learning preferences and schedules. Why Choose Our Training Programs? 🔹 Expert Instructors: Learn from seasoned professionals and industry leaders who bring real-world experience and insights. 🔹 Comprehensive Curriculum: Our courses cover a wide range of

Hello, I am trying to simulate a transient thermomechanical model of a roller test rig to get heat generation and stress analysis caused by load, slip and friction coefficient. Model consists of 2 rollers- Hollow Roller and Counter Roller. Load is applied to Counter Roller. I have made 3 steps- loading of counter roller, acceleration of both rollers to their respective velocities and steady running of both rollers. I am using Coupled Temp-Displacement as step. All the material properties are

Learning Edition Software is available free of charge for personal and educational use. As stated in the License Agreement, these products may not be used for commercial use. The full documentation collection in HTML format makes them the perfect learning tools, both on campus or on the move. These products are called Learning Edition since the 2022 release, previously they were made available under the name Student Edition. Technical support is not provided. In addition to the documentation,

2025 Top 10 Q&A Articles for January 2025 January 2025 | New SIMULIA Q&A EntriesFebruary 2025 | New SIMULIA Q&A EntriesJuly 2025 | New SIMULIA Q&A Entries 2024 Top 10 Q&A Articles for January 2024 Top 10 Q&A Articles for March 2024Top 10 Q&A Articles for May 2024Top 10 Q&A Articles for June 2024Top 10 Q&A Articles for August 2024Top 10 Q&A Articles for September 2024 January 2024 | NEW SIMULIA Q&A Entries February 2024 | NEW SIMULIA

▶Access to 3DEXPERIENCE Simulation Examples from the 3DEXPERIENCE Platform ▶3DEXPERIENCE Simulation Examples User Guide Simulation examples here in the community Even more examples! Design Improvement Study for a Loaded Cantilever BeamAerodynamics of a DroneThermal Analysis of a Shaft AssemblyPerformance Analysis of a Centrifugal PumpDesign Exploration of an Automotive Suspension Control ArmFluid-Structure Interaction between Airflow and a BaffleSignal Interference Surrounding a Cell

As part of the R2025x FD03 user assistance, SIMULIA R&D enhanced the test management example so that it better illustrates how to plan virtual tests and organize the associated test data. The objective of this example remains the same as before. You must manage a product’s test data in a manner that lets you easily determine its best design. In this example, the product is a bracket for which there are two designs, as shown below. While managing the bracket’s test data, you learn how to define

New to the community? Check out the Welcome page 👋 Greetings to everyone attending the EUROMED RUM in Rome this week! 🆕 What's new ▶ We're fully into the swing of the 2025 Regional User Meetings! Lots of slide decks from the Americas Users Conference (SAUC) and the EuroCentral RUM 2025 have already been published in the community. Check out the wiki pages to see everything that is available or use the tags at the top of the newsfeed to find the content you are interested in. ▶ The

This numerical investigation utilizes ABAQUS to analyze tensile/compressive damage mechanisms in innovative steel-mesh reinforced hollow core slabs. The study demonstrates practical applications for optimizing industrial structures and high-rise building designs through advanced finite element simulation. For implementation details, refer to ABAQUS documentation and Concrete Damage Plasticity (CDP) model parameters.

SIMULIA offers an advanced simulation product portfolio, with an extensive range of e-seminars. New e-seminars are being released all the time. Recent and Upcoming Tech Talks Title Discipline Status Date EMC System Level SimulationsElectrmagnetics On demand July 9, 2025 Reflective Intelligent Surfaces (RIS)Electromagnetics On demand July 8, 2025 Linear Actuators on the 3DEXPERIENCE CloudElectromagnetics On demand July 2, 2025 What's new in Abaqus 2025x FD03Structures On demand June 18,

1 | Shielding Effectiveness Simulation ▶️Watch the replay This is the first Tech Talk in a series of three about EMC simulation in the design process. EMC is a critical consideration in the early design stages of electronic products. To mitigate potential risks, early-stage risk assessment methodologies must be established. This presentation focuses on evaluating shielding effectiveness (SE) as a key factor in EMC performance. We explore SE through three main aspects: (1) a comparison of

▶️ Watch nowAbstract Abaqus, the simulation tool at the heart of all Dassault Systemes structural simulation, is under continual development. The most recent release, 2025x FD03, brings a number of new capabilities that open the doors to new types of simulation. In this Tech Talk we'll discuss these advancements, including: - Surface Tension - DMP Scalable Eigensolvers for Frequency and Buckling Analysis - Multi-GPU Acceleration for the Iterative Sparse Solver - Contact Wear Modeling for

Quickstart modules | SIMULIA on the 3DEXPERIENCE platform The Quickstart module series is designed to help users take their first confident steps with SIMULIA apps on the 3DEXPERIENCE platform — even if they’re brand new to it. ✅ 100% free | ✅ No installation required | ✅ Learn by doing 📄Read about the Quickstart modules in the SIMULIA blog ▶️Access the Quickstart modules on EduSpace: Durability SimulationTopology OptimizationMotion and Multibody SimulationPlastic Injection SimulationStructural

The synthetic test data above was generated by running an Abaqus analysis using the following material model: *MATERIAL, NAME = MR_MULLINS *Hyperelastic, Mooney-Rivlin 1.0, 0.011, 0.0007 ** *MULLINS EFFECT ** r m beta 1.43, 0.29, 0.212 The video below was created on July 15, 2025, using the 3DExperience Calibration App, public cloud, R2025, HotFix 4.10. The purpose of this video is to show a worked example of calibrating using both a UHyper and a UMullins user subroutine. The

I am using the 2025 CST Learning Edition and am trying to add a 90 degree phase shift to my 2nd port, however I can not find where I can do this and every video I watch the UI is much different. I have attached a screen shot. I look forward to everyone's help. Thanks!

Dear SIMULIA Community, where could I find more information about how the heat pipe model is implemented in Fluid Dynamic Engineer role (FMK)? Standard help is not very exhaustive and there are no example either. However, it looks like Solidworks documentation on heat pipe in the Knowledge base is better. Can I assume that heat pipe model available in FMK is the very same implemented in Solidworks?

🎯 QuickStart #5 — Structural Simulation Now Live! Hi everyone, We’re excited to announce the release of the fifth and final module in our QuickStart series — this time focused on Structural Simulation. This new eLearning module is part of a growing series — designed as a practical onboarding tool to help users confidently explore SIMULIA apps on the 3DEXPERIENCE platform, whether they’re first-time users or returning after a break. 🧠 In just 2 hours, learners will: •Review an existing static

Abaqus 2025 FD03 went out last month and contains a lot of exciting new functionality. The Abaqus Release Notes contain brief descriptions of these enhancements and is a great way to stay up-to-date with what's new in each release. ➡️ For an interactive version, visit the online documentation directly at help.3ds.com and choose SIMULIA Established Products If you prefer something you could print or browse offline, here's the PDF version (also available via a download link in the interactive

▶️ Watch the replay Abstract Industrial equipment manufacturers face significant challenges, particularly in reducing project costs during the bidding phase. Users often must work with pre-defined CAD solutions, which can lack integration with essential CAE tools, creating obstacles in the design process. The 3DEXPERIENCE platform offers a solution with its MODSIM approach, which unifies modeling and simulation to enhance team collaboration. This ensures a comprehensive perspective and

Use the hashtag Abaqus or Abaqus Explicit to tag your questions and to explore community posts. You can use the menu button (top right) to go directly to a section in a post. Tech Talks For upcoming Tech Talks, see 🎤Tech Talks & E-seminar collection Community tags are a great way to filter the newsfeed. Just select the Structures tag and the Tech Talk tag to see all the latest Tech Talks. Blogs Featured blogs in the community ➡️ All SIMULIA Structures blogs E-seminars archive

You're on the right trail!👏 Let's see what this character has to say... Step-by-step Instructions (Demo video below) Click to open the SIMULIA Community newsfeed in a new tab (that way you don't lose these instructions!) You're going to need a global search at the top for this one - search for 'first post' Turn on the 6WTag sidebar to help you narrow down your search Select Post and SIMULIA Community - see the demo video for how to search👇 What Post Where SIMULIA Community Demo Video

▶️ Watch now Abstract Meta-surfaces are becoming an integral part of next-generation wireless systems, and among them, Reconfigurable Intelligent Surfaces (RIS) stand out as a transformative technology. RIS are passive, reconfigurable meta-surfaces capable of dynamically controlling the reflection of electromagnetic waves without the need for active transmission components. This makes them an energy-efficient alternative to conventional active antenna arrays, offering similar beam-steering

🎯 Quickstart: Plastic Injection Simulation — New Module! Hi everyone! We’re happy to introduce a new Quickstart module — this time focused on Plastic Injection Simulation. This is the fourth module in our QuickStart series: a collection of short, hands-on onboarding modules to help users explore key SIMULIA simulation workflows on the 3DEXPERIENCE platform. Each course is designed to guide users step by step through real engineering scenarios — even if they’re new to the platform or switching

Good afternoon, I’m currently building a model on the 3DEXPERIENCE Cloud, in which fiber‑reinforced tubes are inserted into mating sleeves and bonded. I have a question about mesh setup. Right now, I’m comparing two different approaches for meshing the tubes. Variant 1: In the first approach, I mesh the entire tube with a surface‐quad mesh and assign the appropriate composite‐shell section to it. Variant 2: In the second approach, I split the tube mesh into three separate meshes. The blue

The 3DExperience calibration app, R2024x, currently supports the following material user-subroutines: Abaqus User Subroutine Description CREEPUser-defined creep behavior. UANISOHYPER_STRAINUser-defined anisotropic hyperelasticity. UHYPERUser-defined isotropic hyperelasticity. UMATUser-defined mechanical behavior. UHARDUser-defined hardening. UCREEPNETWORKUser-defined nonlinear viscoelastic networks. In R2025x FD01 we added the capability to calibrate the UMullins user subroutine. This post is

Hi, Rectangle Selection is not working for me. When drawing the rectangle to select objects nothing happens. Is this a bug? Has anyone else experienced this problem? BR Carsten CST Studio Suite

▶️If you'd prefer to watch the video in the community, you can view it here Abstract It is commonly accepted that "the better is the mortal enemy of the good" (Montesquieu), a saying that is put into application numerically by the Pareto principle. Applied to engineering, one should strive to achieve the majority of the outcome with the smallest amount of effort, and not waste time and profitably on improving a "Good" design needlessly. Perhaps an infamous example of this is

The test data shown above is "synthetic" data created by running Abaqus with this material model: This post demonstrates the calibration of a UMullins user subroutine using the Numerical mode of the 3DExperience Calibration App. The UMullins user subroutine capability was added in R2025xFD01. The video below was created using the public cloud, R2025x HotFix 1.22 The Fortran source code for this example comes from the Abaqus Verification Manual, section "Mullins effect and permanent set". In

Abstract: Modelling and simulation on 3DEXPERIENCE platform are driven by MODSIM - a unique unified modelling and simulation data model. This may seem like an obscure detail, but in fact, it has an enormous impact at every level. Here we shall explore the benefits and the value of this unified data model, from the way it affects the day to day activities of designers, it's ability to create fully connected validations, all the way to its role in delivering highly advanced machine learning

TopicPresenterSIMULIA Brand Insights Sebastien Gautier, Dassault Systèmes Simulating towards the world's most sustainable food packagingPer Karlsson & Karolina Wamsler, Tetra Pak MODSIM: The importance of being unified Joe Amodeo, Dassault Systèmes V+R Testing to Support the Certification Process including R&D outlook Tony Goff & Matthew Whitaker, Dassault Systèmes Smarter Testing Project - Data Driven platform: Full-Field correlation workflow to perform physical test and simulation correlations

2025 ScheduleOur Regional User Meetings serve as a central meeting point for engineers, researchers and academics from all industries to exchange ideas and experiences in all aspects of simulation technology. Americas Users Conference Novi, Michigan, USA Apr 29 - May 1 EuroCentral RUM Bamberg, Germany May 5-7 Korea: 3DEXPERIENCE Conference Seoul, Korea May 29 EURONORTH RUM Manchester, UK June 3-4 India RUM Bengaluru, India June 12 EUROWEST (Spain) RUM Madrid, Spain June 17-18 EUROMED (Italy)

▶SIMULIA E-learning Resources One of the challenges of advanced simulation with Abaqus is knowing how to represent the materials in your structure. Defining a simple linear elastic material model is pretty straightforward. Defining a nonlinear elastic material, such as a rubber or elastomer material is a bit more complicated, but we have some well-developed courses to attend to learn more about that subject. Rubber and elastomeric materials can get even more complicated than just

Abstract: This session will showcase new capabilities in Process Automation and Design Exploration. Learn how automation streamlines workflows, while design exploration techniques enhance product performance and accelerate decision-making. Discover the latest advancements in machine learning that expand the design space and accelerate the design process using machine learning experiment models. Presenter: Jamie Wheat SIMULIA Industry Process Expert - Dassault Systèmes Jamie joined Dassault in

As part of the R2025x FD03 User Assistance, SIMULIA R&D created a new 3DEXPERIENCE example that teaches you how to perform an injection molding simulation of a thermoset rubber gasket to assess the gasket’s curing state. Gaskets designed as seals are often made from thermosets, a class of materials distinct from thermoplastics. Unlike thermoplastics, thermosets undergo an irreversible chemical curing process, typically catalyzed by heat, radiation, or chemical additives. The simulation uses

🎯 QuickStart #3 — A New Way to Learn Motion Simulation on the 3DEXPERIENCE platform! Hi everyone, We’re excited to share the new Quickstart module focused on Motion and Multibody Simulation — created to help users to explore SIMULIA’s motion apps and confidently run multibody simulations on the 3DEXPERIENCE platform. 📘 Part of the growing Quickstart series — also available for: Durability • Structures • Topology Optimization • Plastic Injection ✅ 100% free — no installation required until

Healthcare professionals at Saint-Louis Hospital – AP-HP in Paris are taking part in innovative training to improve their understanding of infection prevention. Instead of sitting through traditional lectures, they take part in a hands-on learning experience, stepping into their own work environment with tablets in hand. Here, they see virtual patients breathe and cough, revealing hidden risks that were once undetectable. Through virtual twin-powered augmented reality (AR), airflow patterns are

Note: This post uses a development version of the 3DExperience Calibration App to show a new capability that will be released with R2026 FD01 (early in 2026). I have done this work in July, 2025. PA 12 (also known as Nylon 12) is a good general-use plastic with broad additive applications and is known for its toughness, tensile strength, impact strength and ability to flex without fracture. PA 12 has long been used by injection molders due to these mechanical properties. Several years

As part of the R2025x FD03 user assistance, SIMULIA R&D created a series of 3DEXPERIENCE tutorials that teach you different methods of extracting volumes for use in fluid simulations. In these tutorials, you learn how to extract interior, exterior, and conformal volumes. To perform the volume extraction for a fluids simulation you use the following apps: Geometry Idealization Essentials Fluid Scenario Creation While completing these tutorials, you learn how to extract an interior volume to

As part of the R2025x FD03 user assistance, SIMULIA R&D updated a 3DEXPERIENCE example that teaches you how to define and run a simulation that models the fluid flow inside of a centrifugal pump. In this example, you define a fluid flow simulation using a geometry-based volume definition, and you then model the fluid flow in the pump to analyze its performance. To define, run, and evaluate this simulation, you use the following apps: Geometry Idealization Essentials Fluid Scenario Creation

Abstract: Despite the clinical success of tapered splined titanium stems, a knowledge gap still exists between spline design and its primary mechanical stability, which is critical to the long-term success of revision hip arthroplasty. Additionally, almost all published pre-clinical studies relied on resource-intensive benchtop and cadaveric testing. Hence, the present study developed a novel computational model to investigate effects of spline geometry and configuration on axial and torsional

Abstract: Transcatheter heart valve replacement is a procedure for the treatment of symptomatic heart valve disease. During this procedure, a bioprosthetic valve device is first crimped to a low profile in a catheter delivery system. The delivery system is then tracked through the native vasculature and the bioprosthetic valve is then deployed into a failing native valve where it regulates blood flow between the chambers of the heart. The bioprosthetic heart valve is typically comprised of a

Abstract: The temperature distribution and history in elastomeric structures is important for several reasons. Temperature directly affects the current viscoelastic properties which can impact performance, and it impacts the fracture properties related to fatigue life. Higher temperatures can also accelerate chemical reactions leading to aging of the material, and aging can cause subsequent degradation of mechanical properties. Coupled workflows for steady-state temperature and stress-strain

Abstract: The Total Human Model for Safety (THUMS), developed by Toyota Corporation, is a highly biofidelic finite element (FE) model widely used for biomechanical analysis. Originally designed for different simulation platform, THUMS was adapted for use in Abaqus for this study. Given the focus on forward head posture, the model was further modified to retain only the vertebral column while preserving geometric integrity. To validate this adaptation, initial simulations employed static

Abstract: Abaqus software has been used in Trelleborg AVS since 1980s. In addition to general simulation capabilities, the software provides users with more functions to solve complex engineering issues, such as user subroutines. In a large deformation with non-linear materials involved, user subroutine VUSDFLD could be used for crack propagations in explicit simulations. This work describes a procedure to introduce subroutine VUSDFLD in explicit simulations for rubber antivibration

After my presentation at the RUM2022 in Hanau I had some reminiscence on my 1st talk at the German Abaqus users meeting, University GH Essen, 1999. Dr. David Hibbitt form HKS Inc. was present and some of my recommendations made it into the code (i.e. *INCLUDE, ...; *TIME POINTS, NAME=... ; *RIGID ..; reduced order models, ...). The comments on CPU time are outdated (although, the job you can run overnight remains the relevant limit) and the tyre models have made quantum leaps. Other aspects are

Abstract: As product complexity continues to accelerate, traditional CAD approaches based on sketch-and-extrude operations have reached their limitations for certain advanced components. These sophisticated geometries now demand algorithmic solutions capable of generating outputs that precisely meet complex engineering requirements. While there are certain solutions like Abaqus/CAE which offers Python scripting capabilities for creating geometries and simulation studies, this approach requires

🎯 QuickStart #3 — A New Way to Learn Topology Optimization! We’re continuing our QuickStart rollout on this community with the third module in the series, this time focused on Topology Optimization — built for engineers exploring design exploration and early-stage decision making on the 3DEXPERIENCE platform. This short, guided module is designed to help users take their first confident steps, whether they’re new to simulation or returning after a break. 🧠 In just 2 hours, learners will:

As part of the R2025x FD03 user assistance, SIMULIA R&D updated a 3DEXPERIENCE example that teaches you how to define and run a simulation that models the fluid flow inside of an airduct. In this example, you define a fluid flow simulation using a geometry-based volume definition, and you then model the airflow in the duct to assess its efficiency. To define, run, and evaluate this simulation, you use the following apps: Geometry Idealization Essentials Fluid Scenario Creation Physics Results

As part of the R2025x FD03 user assistance, SIMULIA R&D updated a 3DEXPERIENCE example that teaches you how to define and run a simulation that models the airflow around a drone to analyze its aerodynamic performance. In this example, you define a fluid flow simulation using a geometry-based volume definition, and you then model the aerodynamics of the drone. To define, run, and evaluate this simulation, you use the following apps: Geometry Idealization Essentials Fluid Scenario Creation

Summary The History Access module offers a fluent interface for retrieving history data from ODB files. The Python module is provided at the end of this post, along with a video tutorial demonstrating multiple usage examples. Introduction With the increasing number of Machine Learning projects being executed by the SIMULIA Services HUB, we identified the need for a simple and robust way to access history data when post-processing multiple ODB files. To meet this need, we developed a new

Hey guys, I have a problem regarding the reliability of my meshing procedure for the following simulation scenario: The simulation is a 2-degree rotationally symmetric problem. It includes a vertically moving coil along an rotationally symmetric shaft. The rectangular box around the shaft and the coil is a refining feature for better seeding control. It is a manually coupled model, which means: At every coil's position, there is an electromagnetic step (induction heating) first. Secondly, there

A handy still image from the video😀:

UPDATE: Local Run with cloud storage is working fine. Dear SIMULIA Community, is anyone having issues with accessing simulation results stored on the cloud after FD03 update? After a successful simulation we are not able to see any results anymore because Physics Results Explorer is always stucked at this phase

As part of the R2025x FD03 user assistance, SIMULIA R&D created a 3DEXPERIENCE example that illustrates how to create a geometry's finite element substructure and consider its flexible deformation during the static and dynamic loading of a motion simulation. In this example, you simulate the motion of a crank wheel mechanism. During a full rotation of the wheel, the rod experiences alternating compressive, tensile, and bending forces, leading to elastic deformation. You can simulate a part's

As part of the R2025x FD03 user assistance, SIMULIA R&D created a 3DEXPERIENCE tutorial that illustrates how to use flexible bodies to effectively consider the elastic deformation of a body. In Motion Analysis, the model simulates a mini excavator, whereas in Suspension Analysis, it represents a wheel axle system. Your objective is to convert an existing rigid body to a flexible body, configure the flexible body, and then visualize its motion. Motion AnalysisSuspension Analysis To complete this

Hi all, We are having multiple issues(since 2024x) on Prem on all workstations when clicking Simulate in Functional Gen design app . The error pointed to 3DOrchestrate, which was not set up before. After we installed 3DOrchestrate server, based on DS documentation, the error message changed but still remained. Also the option to run on Server is not available. See attached print screens. Anyone else encountered this issue? any suggestions? Many thanks, Michael

Hi everyone, I'm reaching out for some guidance or suggestions on how you would approach the following problem. The setup involves a spring, two bolts, and a flat component (the black part) that the spring is meant to push downward. The task is to preload the bolts, which in turn hold the spring in place and constrain the black part. The assembly I received contains the spring in its undeformed, default shape and position. However, in this state, the spring intersects with multiple components.

Hi all, I have trouble linking ABAQUS with Intel and Visual Studio. I have watched multiple tutorials and followed the procedures exactly. However, when I launched the "ABAQUS Command", it says " WARNING: vars.bat does not set up dependencies when invoked directly. Please perform environment setup for UMF before running DPC++ applications.". Also, when I enter command "abaqus info=system", under the Fortran Complier section it says: "Fortran Compiler: Unable to find a Fortran compiler on this

posted on May 14, 2023 PA 12 (also known as Nylon 12) is a good general-use plastic with broad additive applications and is known for its toughness, tensile strength, impact strength and ability to flex without fracture. PA 12 has long been used by injection molders due to these mechanical properties. Several years ago a test lab shared some test data on PA12. The test data consists of : Three monotonic pull tests at rates of 5, 50, and 500 mm/min (crosshead velocities). One cyclic test

Hello, So i downloaded the learning version of CST Studio Suite i licensed and everything but when i click the new template button it just goes black screen, my drivers and windows are up to date.

Towards 3D Interactive Design Exploration via Neural Networks Physical simulations are performed at multiple scales covering diverse physical domains. Macro scale continuum simulations at the part and assembly level, usually employing traditional numerical techniques such as 3D Finite Elements or Finite Volumes, are widely used for physics-based product design because of their high predictive value. However, these simulations are often computationally intensive and may take minutes, hours, or

1. CST Studio Suite 2025 GA_SP1 release note_JP.pdf メディアダウンロードは下のリンクをご覧ください。 SIMULIA技術サポートの各種手順書をダウンロードいただけます。 You can download Japanese manuals for SIMULIA technical support.