LS Dyna

LS Dyna

Topics related to LS-DYNA, Autodyn, Explicit STR and more.

疑惑求解答

    • 1614607336
      Subscriber

      使用JC模型做打靶实验仿真,材料用的是钛合金,为什么我的结果是高温反而不容易破坏,是因为我在不同温度用的是同一套JC模型吗,但是JC模型不就是一套模型可以体现温度应变率的影响额本构模型吗

    • Nanda
      Ansys Employee

      Hello User,

      If I translated your query to english correctly: "When using the Johnson–Cook (JC) model to simulate ballistic (target) impact tests with a titanium alloy, why do my results show that at higher temperature the material is instead harder to damage? Is this because I am using the same set of JC model parameters at different temperatures? But the JC model is supposed to be a single constitutive model that can reflect the effects of temperature and strain rate, right?"

      Unfortunately, Ansys employees are not authorised to help with certain topics. We will let other forum users answer your request.

      Regards,

      Nanda.

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