PREDICTION OF THE BEARING CAPACITY OF THE HIP JOINT ENDOPROSTHESIS FROM THE С/C COMPOSITES

The article evaluates the bearing capacity of hip joint endoprosthesis made carbon/carbon (С/C) composites under anatomical load. С/C is on basis carbon fiber Ural N/400-22 and phenolformaldehyde resin novolachny type RP-010. A significant complexity in modeling an prediction properties С/C. mathematical based mechanics composite materials consists impossibility experimentally determining mechanical characteristics a pyrocarbon matrix. matrix does not exist its pure form separately from material. are calculated, models bone tissue constructed, taking into account complex structure. femur represented by combination cortical spongy tissue. study was fixed along lateral medial condyles femur. This fixation corresponds to contact spot condyle with menisci. hypothesis confirmed that weakest component position highest values normal tangential stresses revealed. concentration coincide areas destruction during compression testing, which were previously visually identified. New design technological requirements for structure have been identified, will contribute increasing reliability endoprosthesis.