Abstract

Structural simulation supports the development of aerostructures. It is most beneficial when fully connected to product development and applied in all phases from concept to certification. In general, compliance with structural certification specifications is proven through physical tests, but authorities can also accept Model Based Certification (Certification by Analysis) if modeling and simulation techniques are systematically validated.
One key element for acceptance of Certification by Analysis is ensuring simulation credibility. Simulation credibility is usually built by systematic comparison of virtual and real (V+R) test data – e.g. based on a test strategy successively extending the scope of validation from simple geometries to complex sub-systems of the structure.
We first show how to define such a test strategy in the 3DEXPERIENCE platform, seamlessly unifying modelling and simulation activities with the product development process. Then we apply the methodology to cohesive joints, starting with calibrating material properties of cohesive joints from Double Cantilever Beam (DCB) and Mixed Mode Bending (MMB) tests. The calibration is conducted with the Material Calibration application on the 3DEXPERIENCE platform. Finally, calibration data is reused to assess debonding of a stiffened composite panel.

Highlights:

• Calibrate advanced nonlinear material models for cohesive joints on the 3DEXPERIENCE platform.
• Manage the lifecycle and maturity of material properties and ensure traceability with calibration source data.
• Define and manage a Virtual+Real test strategy for support of model based certification.

Speaker

Torsten Moecker | SIMULIA R&D Industry Process Experiences Portfolio Senior Manager

Torsten MOECKER holds a PhD degree in mechanical engineering from RWTH Aachen University in Germany and has worked in the field of nonlinear finite element analysis and lightweight design of aerospace structures for over 15 years. He joined SIMULIA in 2005 as an Application Engineer providing technical solution support for the Abaqus suite of products. In his current role as SIMULIA R&D Industry Process Experiences Portfolio Senior Manager, he is responsible for the SIMULIA industry portfolio for the aerospace industry.

Gerhard Oettl | SIMULIA Industry Process Consultant Senior Specialist
Gerhard Oettl holds a PhD degree in civil engineering from the University of Innsbruck, Austria, and has worked in the field of nonlinear finite element analysis for over 15 years. He joined SIMULIA in 2006 as an Application Engineer providing technical solution support for the Abaqus suite of products. In his current role as SIMULIA Industry Process Consultant Senior Specialist, he is responsible for supporting customers in the aerospace industry.