Nonlinear Dynamic Analysis of a Snap-Fit Buckle in SOLIDWORKS Simulation

The objective of this project was to analyze the mechanical behavior of a snap-fit bag buckle under applied loads using SOLIDWORKS Simulation.
To reduce computational time while maintaining result accuracy, the study was performed in 2D using a Nonlinear Dynamic analysis.

This approach allowed a realistic evaluation of stress distribution, deformation, and contact behavior between the buckle components during snap engagement.

 

 

Project Workflow:

 

  • The buckle was modeled in SOLIDWORKS using a standard snap-fit design.
  • The model was converted to 2D to reduce simulation time while keeping the results accurate.
  • A Nonlinear Dynamic study was used to study large deformations and contact between parts.
  • Material properties and loads were applied to replicate real working conditions.

 

 

3DXML Model: 

 

Simulation Output: 

 

Displays stress contours, deformation plots, and contact behavior during loading phases.

 

Observations:

  • The analysis highlighted stress concentration regions around the locking arms of the buckle.
  • The deflection pattern showed smooth engagement with minor elastic deformation.
  • The contact pressure distribution indicated areas that may require geometric refinement.
  • These results help in optimizing the buckle shape and material selection for improved performance and durability.

 

Key Takeaway:
 

Performing nonlinear simulations in SOLIDWORKS Simulation enables engineers and learners to understand how snap-fit mechanisms behave under real-world conditions.
Such analyses provide valuable insights that support better design validation, optimization, and product reliability even before prototyping.
 

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