Visco-Hyperelastic Model with Damage for Simulating Cyclic Thermoplastic Elastomers Behavior Applied to an Industrial...

Area of Science:

• Materials Science
• Mechanical Engineering
• Computational Mechanics

Background:

• Santoprene 101-73 is a widely used elastomeric material in automotive and aeronautic industries.
• Existing models struggle to comprehensively capture the complex mechanical behaviors of such materials.
• Accurate simulation of material behavior is crucial for component design and performance prediction.

Purpose of the Study:

• To develop a novel nonlinear phenomenological model for Santoprene 101-73.
• To incorporate hyperelasticity, viscoelasticity, and damage phenomena into a single model.
• To validate the model against experimental data for cyclic uniaxial loading.

Main Methods:

• Development of a nonlinear phenomenological visco-hyperelastic model with damage.
• Experimental testing of Santoprene 101-73 samples from an automotive air intake duct.
• Utilizing optimization algorithms to determine model parameters for best experimental fit.

Main Results:

• The developed model successfully simulates the behavior of Santoprene 101-73.
• An adequate fitting was achieved for experimental results under cyclic uniaxial loading.
• The model integrates and improves upon existing literature models by considering multiple inelastic phenomena.

Conclusions:

• The proposed model offers an improved approach for simulating the mechanical response of Santoprene 101-73.
• This work contributes to a better understanding and analysis of elastomeric material behavior in engineering applications.
• The validated model can aid in the design and reliability assessment of components made from Santoprene.