Abstract
AbstractWithin numerical simulations of mechanical systems, not only the geometry, boundary conditions, the material behavior and the included material parameters have to defined. Beyond that, initial conditions have to be set properly in order to define the initial state of the material. In this contribution, two different examples of proper definition of initial values are regarded and their impact on the simulation results is discussed. The first example is devoted to models including elasto‐ or viscoplastic material behavior. Here initial values of plastic internal variables enable the consideration of the loading history. Thereby, a change of the reference configuration has to be taken into account. The second example highlights the impact of initial values for the temperature and similar physical properties that control the initial volume of a material with volume‐changing capabilities (like heat expansion, swelling or polymerization shrinkage).
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