hystereticBackbone ReeseSoftClay

[rainandcm]

I used "hystereticBackbone ReeseSoftClay" to replace "uniaxialMaterial PySimple1" command. When I run my model, it shows "WARNING no material 64exitsts -element ZeroLength eleTag?? i Node? jNode?...". It looks like the material 64 doesn't exist. In order to check if this is the problem, I put a "puts $tag" command after the command "hystereticBackbone ReeseSoftClay" to show each tag created. Finally it does show material 64 there.

Finally, the problem is: this reesesoftclay material does exist, but it is not valid.

Has anyone met this situation before? Thank you.

[rainandcm]

Problem solved. Here is the right way: "The problem is that the zeroLength element only works with uniaxialMaterials and not hystereticBackbone objects. However, they are very similar. To get around it, you should first define your hystereticBackbone ReeseSoftClay, then define a uniaxialMaterial Backbone that wraps the backbone.

hystereticBackbone ReeseSoftClay 23 .......
uniaxialMaterial Backbone 64 23

Then you can use material 64 in your zeroLength element."

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