The paper consider bone tissue as an biphasic porous medium , which is composed of solid bone matrix and liquids as extracellular fluid . on the other hand , bone tissue can produce electric potential when it is subjected to outside force . so dynamic governing equations can be established through combining the biphasic porous medium model and the streaming potential model , which describe the coupling between the distortion and fluid flow as well as the streaming potential 论文首先考察了骨组织的生理形态结构及其组成，据此将骨组织模型化为一种由固体骨基质和由细胞外液和血液等组成的液体所构成的两相饱和多孔介质，并进一步假设固体骨质为各向同性弹性介质，而孔间流体为理想流体；另一方面，骨组织在受到应力作用变形后能够产生电位。
The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks , detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack , a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading . the distributions of tz are minutely studied in the forward section of the cracks . strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions 全文主要研究内容和学术贡献如下: 1 .针对一般三维裂纹端部场应力约束准确解析的困难,对均匀拉伸载荷作用下各向同性弹性板中穿透厚度中心直裂纹、半椭圆表面裂纹和1 / 4椭圆角裂纹进行了大量详细的全场应力三维有限元分析,首次全面分析了非穿透裂纹端部场三维影响区范围,给出了不同形状三维裂纹前沿离面应力约束因子tz的数值解,并结合k场平面解给出了非穿透裂纹端部应力场k - tz双参数描述。
In the paper , consolidation effects on stress and displacement distributions are n ' t taken into consideration due to supposing that foundation soil consolidation has completed after surcharging preloading . based on the inherent anisotropy and induced anisotropy of foundation soil body , transversely isotropic elastic constitutive relations are adopted to simulate half - space clastic foundation body . the relations between displacement and displacement function are proposed by extending t , ove displacement function to transversely isotropic elastic half - space 本文假设地基土体是经过超载预压处理过的，固结已经完成，不考虑固结对应力、位移场分布的影响；基于地基土存在着固有各向异性和诱发各向异性，在前人的基础上对e地基模型进行修正，采用横观各向同性弹性模型模拟无限弹性半空间，将love位移函数推广到半空间，得到位移与位移函数之间的关系，然后经过hankel变换得到非轴对称问题位移、应力的一般解。
The general stress and displacement solutions of non - axisymmetric problems are obtained by hankel transform , then the theoretical solutions of stress and displacement in transversely isotropic elastic half - space under arbitrary loading are put forward by introducing boundary conditions . the homogeneous elastic half - space solutions evolved from the theoretical solutions in the paper are in accord with classical ones . solutions under horizontal and vertical loading can be obtained respectively by specializing arbitrary loading ; by analogy , solutions under other loading can be also obtained 进而引入边界条件得到一般荷载作用下横观各向同性弹性半空间的应力、位移分量理论解，此解经过退化后得到均质弹性半空间理论解与经典解吻合，对一般荷载的特殊化可以分别得到水平荷载下和竖直荷载下的理论解，如此类推，可以得到其它类型荷载的解答。
