Identification of Material Parameters of Complex Cables from Scanned 3D Shapes

T. Hermansson, S. Vajedi, T. Forsberg, F. Ekstedt, J. Kressin, C. Toft, J.S. Carlson. Procedia CIRP, 14th CIRP CAT 2016 - CIRP Conference on Computer Aided Tolerancing, May 16-18, 2016, Volume 43, 2016, Pages 280–285.


Simulation of flexible components is becoming an integral part of virtual product design. However, for a simulation model to predict physically correct deformations, it is crucial that the material parameters are authentic. Conventional methods to acquire these parameters involve extensive force-displacement measurements, which may be unpractical or too expensive to perform. We propose an alternative method to identify the material parameters of a flexible one-dimensional component, such as a cable or a hose, from a scanned set of deformed reference shapes. The method finds the model parameters that give the best geometric fit between the model and the reference shapes.


Photo credits: Nic McPhee