Failure criteria for FEA of glass
Failure criteria for FEA of glass
(OP)
I am trying to predict failure of a glass panel subjected to varoius loads.
My FE model consists of solid elements. My question is what do I use for a stress criteria which will predict failure. The model will be used for multiple load cases.
Thank you.
Jim
My FE model consists of solid elements. My question is what do I use for a stress criteria which will predict failure. The model will be used for multiple load cases.
Thank you.
Jim





RE: Failure criteria for FEA of glass
actual failure levels quite strongly dependent upon surface finish/or roughness, polished surfaces are best and failures generally initiates at the edges
typical values would be 2000 psi for tension but upwards of 40,000 psi in compression
schott has data relating to rate-of-stress application vs failure
Weibull analysis generally used for this kind of failure
be very cautious about the restraints/boundary conditions for any material that is subject to brittle failure
look for works by P Yoder and V Genberg
RE: Failure criteria for FEA of glass
RE: Failure criteria for FEA of glass
Jim
RE: Failure criteria for FEA of glass
RE: Failure criteria for FEA of glass