Abstract
Bone tissue is a composite material composed of hydroxyapatite (HAp) and collagen fiber. The interplanar spacing of HAp ciystals can be noninvasively measured using the X-ray diffraction method, because HAp is a crystalline structure. The residual stress of bone tissue can be calculated from the interplanar spacing of the HAp crystals. In this work, the residual stresses of the bone axial direction in the anterior and posterior positions at the surface region of the center of the rabbit femoral and tibial diaphyses were estimated using the sine squared psi method. As a result, the residual stresses were in the rabbit femoral and tibial diaphyses and the values were different between the anterior and posterior positions.
