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Questions related from Youngseo Lee
During plastic deformation (before necking) under uniaxial static tensile loading, the length of the gauge section increases and the width decreases so that the volume does not change. Then, what...
17 August 2023 3,839 0 View
True stress(σ) and true strain(ε) can be calculated from engineering stress(S) and engineering strain(e), formulated as follows: σ=S(1+e)=P/A ε=ln(1+e)=ln(A0/A) P is load, A is the instantaneous...
17 August 2023 7,714 0 View
We can obtain the fatigue life (e-N, S-N) curves from the fatigue tests where e : strain amplitude (=maximum strain-minimum strain) S : stress amplitude (=maximum stress-minimum stress) N :...
17 August 2023 6,873 0 View
Why does the necking zone in the gauge section of the tensile test specimen undergo the plane strain condition? Is the plane-strain stress state the same as strain localization? If so, how does...
17 August 2023 9,982 0 View
Hollomon and Swift flow stress models are popularly used to describe the true stress-true strain relationship in the strain-hardening range from yielding point(yield strength) to necking...
17 August 2023 8,781 1 View
Hi, experts. My understanding is that a plastic strain increment (△ε_p) can never be negative (it can be either positive or zero), as long as the material conforms to the consistency...
03 August 2023 9,462 2 View
Hi guys. I am currently working on writing VUMAT subroutine to develop new damage model. To check if it works well, I ran a simulation with a simple model. Detailed model conditions are as...
04 September 2022 9,074 0 View
