Can I use Marc to run impact simulation by considering the strain rate effect? what's the main point I need to take care? How can I input the stress-strain curves at different strain rate in the material? Thanks in advance!

Can I use Marc to run impact simulation by considering the strain rate effect? what's the main point I need to take care? How can I input the stress-strain curves at different strain rate in the material?
Thanks in advance!

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0 rex.he over 4 years ago

Thanks for your answer, actually Marc can use Explicit method like central difference and fast central difference in the dynamic transient simulation, am I right?

I can build the table by using 3D dimension one, V1 is eq_plastic_strain, while V2 is the eq_plastic_strain_rate, but why I can not use V2 as eq_strain_rate? is the eq_strai_ rate same with the eq_plastic_strain_rate?

For example, if we do the tensile test with 600mm/min, and the gage length is 10mm, then the strain rate is 600mm/min / 60s/min /10mm=1 s-1, can I use this strain rate as eq_plastic_strain_rate directly?

Looking forward to your feedback, thanks again!
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0 rex.he over 4 years ago

Thanks for your answer, actually Marc can use Explicit method like central difference and fast central difference in the dynamic transient simulation, am I right?

I can build the table by using 3D dimension one, V1 is eq_plastic_strain, while V2 is the eq_plastic_strain_rate, but why I can not use V2 as eq_strain_rate? is the eq_strai_ rate same with the eq_plastic_strain_rate?

For example, if we do the tensile test with 600mm/min, and the gage length is 10mm, then the strain rate is 600mm/min / 60s/min /10mm=1 s-1, can I use this strain rate as eq_plastic_strain_rate directly?

Looking forward to your feedback, thanks again!
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