temperature impact on stress-strain curve for non-linear elastic materials
We need to simulate the manufacturing process. The material used is non-linear elastic (elasticity goes beyond the linear region). For this material we want to get the residual deformation on unloading. Please suggest suitable material model for simulating this process.
Also, we want to include the temperature effects- can you suggest some model which can include preferably both. If not then we can neglect temperature effects.
Best Answer
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Hi Dinesh,
Use MAT1 + MATS1 for using stress vs strain curve to capture the plastic strain.
Use MATT1 to specify temperature-dependent material properties with TABLEMi or TABLEG entries.
Here's a sample deck using them.
Thank you,2
Altair EmployeeAnswers
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Hi Dinesh,
Use MAT1 + MATS1 for using stress vs strain curve to capture the plastic strain.
Use MATT1 to specify temperature-dependent material properties with TABLEMi or TABLEG entries.
Here's a sample deck using them.
Thank you,2 -
Thank you Robinson. It is very useful.
Under MATS1 there is one option of "NLELAST" where we can input material data for non-linear elastic materials. I will use it along with MATT1.
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Dinesh Sharma said:
Thank you Robinson. It is very useful.
Under MATS1 there is one option of "NLELAST" where we can input material data for non-linear elastic materials. I will use it along with MATT1.
Hi Dinesh,
If you want to use hyperelastic material please use MATHE instead.
NLELAST is 'outdated' since it was used with Radioss running behind.
If you really want to use elastoplastic material, use MAT1+MATS1.
Tks0