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ATC 2019 - Accelerating analysis cycle time with Optistruct Solver Features

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The automobile industry provides many challenges which require the use of leading-edge technologies to keep up with increasing performance demands. All physical structures exhibit nonlinear behavior to some extent. They may be made of rubber or plastic materials that do not have a constant modulus, or they may be made up of components that contact each other. In such cases, performing linear FE analysis is not a valid representation of real structures. Therefore, the analysis of a structure undergoing some form of nonlinear behavior is more accurate if a nonlinear Finite Element analysis is carried out. But full-fledged nonlinear analysis involves complex problem formulation, more resource requirement and increased solving time. In the current competitive scenario, the solution for the problem should be achieved in quick time with reasonable accuracy for quick design iterations.

In this paper, we have shown how Tata motors utilized Neuber and Fast contact features of Optistruct solver which has reduced analysis cycle time significantly for initial design decision simulations.

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