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Recent content by lfmarini

  1. lfmarini

    NONLINEAR SPRING modeling

    Dear Blas, thank you very much for your help, it worked and finally I could finish this job. Thanks
  2. lfmarini

    Accurate location of two concentric cylinders

    JediJew, I'm designing a hopkinson bar and I'd appreciate to share some information about it. Hence, I can't understand the usage of the gearbox you say in hopkinson bar experiment. Could you clear up my mind? thanks lfmarini ITA - Instituto Tecnologico de Aeronautica SP, Brasil
  3. lfmarini

    NONLINEAR SPRING modeling

    Dear Blas, Thanks for your answer, particularly it's my first post at this forum. My problem is in specifying this nonlinear behavior in the analysis. I've tried even DOF elements and Spring/damper elements, both didn't follow the "Force vs Displacement" curve I've specified in element...
  4. lfmarini

    NONLINEAR SPRING modeling

    Hello guys, I'm working with FEMAP V10, using NX Nastran, and I have a problem in modeling a nonlinear spring. Using a DOF element element, I've chosen a Function Dependence stiffness and then I entered a function of Force Vs Displament, using a Dimensionless function. The type of...
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