Fixation of three-dimensional states of deformation in polymers by ionizing radiation — III. Experimental results and implementation

Photoelastic investigations using transparent polymeric materials are still a potential tool in mechanical engineering, in civil engineering and more recently in biomechanics. They allow the analysis of deformations or stresses even in complex three-dimensional bodies. In order to extend the application of such plastic models at ambient temperature it was necessary to improve the fixation of deformations in the loaded state. This could be realized by the study and proper modification of some radiation-curable polymer systems (Schaudy et al., 1995, 1996). The experimental results reveal a broad variety of properties due to the type of the polymer system and to the degree of crosslinking caused by the radiation dose applied. Simple spatial models are as well discussed as the industrial and scientific implementation of the new materials.