# The yield stress vs plastic strain values **URL:** \ **Category:** General Questions\ **Created:** [June 17, 2024, 12:01am UTC](https://prepomax.discourse.group/t/the-yield-stress-vs-plastic-strain-values/1814 "2024-06-17T00:01:43Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![PaoPao1970](https://avatars.discourse-cdn.com/v4/letter/p/d9b06d/32.png) [@PaoPao1970](https://prepomax.discourse.group/u/PaoPao1970)\ **Post date:** [June 17, 2024, 12:01am UTC](https://prepomax.discourse.group/t/the-yield-stress-vs-plastic-strain-values/1814/1 "2024-06-17T00:01:43Z")
In a stamping bending analysis, if you set the yield stress vs plastic strain values ​​below in a nonlinear environment for aluminum 1050, the mesh will explode during the calculation. Stress(MPa) | Strain(/) 30 | 0 60 | 0.01 90 | 0.02 100 | 0.05 110 | 0.1 120 | 0.2 Type: Liner Contact stiffness coefficient (K): 15000 N/mm³ σ infinity: 1 MPa Co: Default (0.001) Note: K should be set to about 5000N/mm³, but with this setting, the punch and die overlap with the material too much and the analysis could not be performed correctly.