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Damping when using UMAT in Abaqus

Submitted by lizheng619 on

As it is known, when using UMAT abaqus, stiffness proportional damping can not be used. However, for the dynamic calculation it is neccessary to put some stiffness damping. So for approximate calculations, it is easy to use numerical damping instead.

 *Dynamic, application=XXX,

and using the key words *Dynamic, XXX, users can adjust the value for numerical damping. Althogh, there is no physical meaning for numerical damping, it can be a temperory solution for UMAT dynamic calculation.

Two Postdoc positions at Northeastern: Solid and Computational Mechanics and Biomimetic materials and structures

Submitted by Ashkan Vaziri on

Two postdoctoral fellow positions at Northeastern University are available immediately. First position is focused on the analysis of the nonlinear behavior of soft matter using computational mechanics and the development and analysis of biomimetic materials and structural systems. Second position is focused on computational and solid mechanics. The research will be carried out at the High Performance Materials and Structures Laboratory (http://www.hpmsl.neu.edu/).

Metals and Alloys Webinar on Modelling: State of the Art in Casting and Forging Simulation

Submitted by EnginSoftUK on
Thursday 14th June - 12:30pm (BST)
Once only accessible at the high-end of manufacturing, modelling and simulation is now widely embraced by the industry as a result of increased processor speeds, the accessibility and usability of software and the reliability and robustness of the models and codes which underpin it.