HOW TO EXPERIEMENT FOR SHEAR MODULUS IN COMPOSITE
HOW TO EXPERIEMENT FOR SHEAR MODULUS IN COMPOSITE
(OP)
Hi ya all,
Just wondering if any could help with information on best way to test for Shear modulus and Poisson ratios in composite. And is there a way one can use a FE method to test for this?,..
Cheers.
Just wondering if any could help with information on best way to test for Shear modulus and Poisson ratios in composite. And is there a way one can use a FE method to test for this?,..
Cheers.





RE: HOW TO EXPERIEMENT FOR SHEAR MODULUS IN COMPOSITE
Then one can subject the RVE to constant macro-strain/stress.
Based on the FE solution, one can average the micro-stress/strain components and establish obtain for example the effective shear and bulk moduli from the averaged micro-stress/strain components.
RE: HOW TO EXPERIEMENT FOR SHEAR MODULUS IN COMPOSITE
Garland E. Borowski, PE
Borowski Engineering & Analytical Services, Inc.
Lower Alabama SolidWorks Users Group
Magnitude The Finite Element Analysis Magazine for the Engineering Community
RE: HOW TO EXPERIEMENT FOR SHEAR MODULUS IN COMPOSITE
In-plane shear test per ASTM D7078 for shear modulus, or tensile test of +/-45 laminate per ASTM D3518.
See ASTM D4762 for a guide to the various test standards for composites.
You cannot "test" with FEA; you can make "predictions" of structural response.
RE: HOW TO EXPERIEMENT FOR SHEAR MODULUS IN COMPOSITE
Many thanks.
RE: HOW TO EXPERIEMENT FOR SHEAR MODULUS IN COMPOSITE
What specific material are you testing?
What is the ply thickness?
What do you want to use the shear modulus for?
At what temperature do you want to test?
Which test methods are you considering?
Do you need the non-linear shear stress-strain curve, or just this initial linear shear modulus?
What capabilities does your lab have?
Which test fixtures do you have?
RE: HOW TO EXPERIEMENT FOR SHEAR MODULUS IN COMPOSITE
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The test beam had to be made with a process and materials REALLY representative of what we were doing.