Shape Memory Alloys - Simulation

The development of models using FEA is always preceded by characterization tests to determine the thermomechanical behaviour of the respective SMA semi-finished products. The parameters used by the models to approximate the relevant material phenomena in a suitable form can be determined from tensile or compression tests and using calorimetric measurement methods. For this purpose, we use various material models from which we select according to the model requirements

In addition to the precise representation of the temperature-dependent stress-strain relationships, it is also necessary to describe the complex thermomechanical interactions of the shape memory components with the surrounding structure. We accomplish this by means of coupled models which, in addition to the mechanics, also depict the heat transfer in and on the structure. In order to achieve the desired system behavior, these interactions with adjacent components such as solid-state joints or restoring elements must be represented in detail in the model.

As a competent partner, we are happy to assist you in solving problems in the field of SMA simulation. Thanks to our years of experience in the numerical representation of highly functionalized systems, we can advise and support you in the selection, design and integration of shape memory components in your applications.