Compressive properties of three commercially available rigid polyvinyl chloride (PVC) foams intended for use as possible model material for human cancellous bone were investigated. Quasi-static compression tests were performed on PVC foam blocks of different densities (0.10, 0.13 and 0.20 g/cm 3 ) with a crosshead speed of 0.15 mm/sec to determine the compressive Young's modulus, the yield strength and the energy absorbed until yield. The results were compared with data obtained on human

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... ous bone and polyurethane (PUR) foams. Results showed that according to their Young's modulus and yield strength the investigated 0.1 and 0.13 g/cm 3 PVC foams are suitable as mechanical model material for Osteoporotic cancellous bone, while 0.20 g/cm 3 PVC foam is suitable as model material for normal bone. According to the energy absorbed until yield the 0.10 g/cm 3 PVC foams are suitable as mechanical model material for Osteoporotic(OP) cancellous bone. For the modeling of normal bone both the 0.13 and 0.20 g/cm 3 PVC foams are suitable. Based on these results, it can be concluded that the examined PVC foams may prove suitable as a model material for OP and normal cancellous bone.