I’m using the Johnson-Holmquist (JH-2) material model for brittle materials in Abaqus/Explicit (as illustrated in image 1) to do an impact analysis. I’m hoping for a simulation that looks like image 2, where the particle bounced back after impact. Instead, I get something like image 3, which shows the particle penetrating the substrate. Do you have any idea why this is happening? In the JH-2 model, the only material parameter that changes is the strain rate coefficient (C), which is 1 in image 2 and 0.007 in image 3.
Any suggestions you have would be greatly appreciated.
Thank you very much.

Figure 1

Figure 2

Figure 3

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Best Answer


This problem could be because of many reasons. Material definition, interaction definition, etc. But I think it’s better to check the interaction first. Maybe you specified something wrong there. After that, I recommend checking your material definition.

Also, might want to take a look at this link:

Best wishes.

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