Numerical Calculation Methods in R&D
FEM Structural Simulations become an important part of the R&D. Computer Simulations are proven and powerful optimization tool. Its efficiency is more visible in mass production and high-tech R&D.
Structural Simulations are used where stress and displacement for a structure with concrete loading to be studied. The loading might be pressure or force. The origin of this loading could be based on pure mechanical loading or thermal loading, for example. Very often, the thermal loading stress exceeds significantly the stress generated from a mechanical loading. That is why it is important this type of loading to be investigated in details. Thermal loading occurs when there is a difference in the thermal expansion coefficient of the materials which build the structure.
Structural simulations may be Linear or non-linear. With the linear structural simulations, the loading is proportional to the response of the structure. In the case of non-linear simulations the structure response is non-proportional to the loading, but instead it follows a certain function. The non-linear simulations describe cases where high deformations, friction or material failure is present. The non-linear simulations used more complex algorithms for calculation and solution result is sometimes hard to obtain.
Structural simulations can predict a failure of a structure, limits up to which the proper functioning of a structure is guaranteed, minimum material cost for ensuring proper functioning of a structure.
Very often, the structural simulations are combined with other type of physics. For example Thermal and structural gives the thermal stress. Or Structural and thermal in combination with vibration gives natural frequency drop due to temperature.