Linear analysis for plastic component - Below yield point
Linear analysis for plastic component - Below yield point
(OP)
Will it be okay to perform a linear dynamic analysis for a plastic part?
The basic function of the plastic part is to support a weight in running vehicle. And the idea is to analyze the component within the yield point considering the analysis as linear. Is it okay to judge the part based on the stress values if it is under yield stress?
The basic function of the plastic part is to support a weight in running vehicle. And the idea is to analyze the component within the yield point considering the analysis as linear. Is it okay to judge the part based on the stress values if it is under yield stress?





RE: Linear analysis for plastic component - Below yield point
Linear dynamic is a linear thing.
Linear and non-linear things should not be mixed.
Analysis and Design of arbitrary cross sections
Reinforcement design to all major codes
Moment Curvature analysis
http://www.engissol.com/cross-section-analysis-des...
RE: Linear analysis for plastic component - Below yield point
RE: Linear analysis for plastic component - Below yield point
my 2c ... if you're below the proportional limit of the material than linear FEA should be ok. mind you, you'll have a very low gross section stress if you mean to avoid plasticity at geometric discontinuities.
Quando Omni Flunkus Moritati
RE: Linear analysis for plastic component - Below yield point
RE: Linear analysis for plastic component - Below yield point
"Plastic is a non-linear thing" ..
In practical every material even steel is non linear thing beyond yield. Isn't it??
If we consider steel as linear material and used to do analysis well below the proportional limit , then why not plastic in the same way.??
RE: Linear analysis for plastic component - Below yield point
i think you're talking about using linear FEA in a linear stress domain, which is generally valid for any material.
it's been posted above that you need to be aware that not all failures are yielding ... crippling/buckling being an obvious one.
Quando Omni Flunkus Moritati