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 Training
Course Descriptions
Testing and Analysis of Elastomers
Combining Test Lab and Computer Lab to Understand Elastomer Material Modeling
Objective:
This is a hands-on workshop covering material testing, material modeling
and finite element analysis of elastomers. Instructors from SIMULIA and
Axel Products, Inc. present an integrated testing and analysis workshop
featuring the experimental facilities of Axel Products, Inc. and the Abaqus
software. Attendees perform elastomer experiments using laboratory instruments
to create data appropriate for use in building elastomer material models
in FEA. Material models are then developed and examined on workstations
running Abaqus.
Characterizing a particular rubber compound for use with FEA can be
quite challenging because of the complexity of rubber behavior. This course
will tie together issues of how to test the material, under what conditions,
what loadings, what preconditioning, and how to use this test data to
derive a reliable, robust FEA material model for the elastomer.
- In the Axel Products Test Lab, students will perform the tests - uniaxial,
biaxial tension, planar tension, stress relaxation
- In the Computer Lab, students will perform computer curve fitting to derive
hyperelastic material models
- Learn how to gather the best test data
- Obtain the best possible material constants from the available test data
- Model viscoelastic behavior - in the time domain and frequency domain.
- Discuss rubber contact issues through case studies
- Open Forum time to investigate additional testing issues
For further information about course content please contact Tod Dalrymple
at SIMULIA Great Lakes, or Kurt Miller at Axel Products, .
Who should attend:
This seminar is recommended for engineers involved with the FE analysis
of elastomers, or with testing of elastomers for material model characterization.
Agenda:
Day 1 |
Overview of Rubber Behavior, Rubber Material Models
Achieving Correlation in Product Testing / Simulation
Introduction to Test Lab Procedures and Safety
Uniaxial Tension Testing & Curve Fitting |
Day 2 |
Equi-biaxial Testing & Curve Fitting
Combined mode fitting
The Problems with Simple Compression Testing
Volumetric Compression Testing
Plane Strain Testing & Curve Fitting
Testing for Friction |
Day 3 |
Viscoelastic Material Behavior, Strain-Rate Sensitivity
Time Domain Viscoelasticity, Stress Relaxation Testing
Fitting the Time Domain Visco Material Model
Frequency Domain Viscoelasticity
t ime-temperature Interrelationship, WLF
Contact Case Studies, and Testing Open Forum |
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| Testing homogeneous states of stress/strain such as the
equi-biaxial test shown (left), and understanding the relationships between
the primary modes of deformation (right). |
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Lecture was last updated April 2003
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