In this thesis theoretical solution of inhomogeneous polar orthotropic plate was deduced and plate with clamped edges was taken as example . the displacement in radius direction , inner - force in radius direction , inner - force in annulus direction and buckling load with different core - radius ratio were worked out . the effect of core - radius ratio to the result was discussed in the conclusion 本文从理论上推导出了非均匀极正交各向异性圆板的精确解，并且以夹支圆板作为算例，计算了在不同核径比的情况下，圆板受外部纵向均布载荷作用后的径向位移、径向内力、环向内力，以及屈曲载荷，讨论了核径比对计算结果的影响。
Firstly , the domestic researches , which have been reported , are introduced . then the characteristic of the system in estimation of prestressing losses is analyzed by theoretical method , and the reasons that the elimination of tendon is large and test results are not consistent are pointed . using fem software ansys , anchorage zone of pylon are analyzed 论文首先介绍了国内现阶段对该问题的一些研究成果，然后从理论上分析了小半径大吨位环向预应力体系在计算预应力损失方面的特点和造成张拉伸长量偏大且实测的数据离散性较大的原因，并采用国际权威的有限元分析软件? ? ansys从理论上进行分析和索塔锚固区最不利节段的足尺寸模型试验进行校验。
In this paper , the microstructure changes of polypropylene induced by a complex combination of shearing , compression , stretching and friction actions during single pan - milling or co - milling with iron , uhmwpe and waste tire rubber chips ( wtr ) were studied and the stress induced effects were revealed . the structure and morphological development of iron particulates and wtr during pan - milling and co - milling with polypropylene were also characterized . the properties of pp / fe , pp / wtr and pp / wtr / fe composites prepared through pan - milling techniques were investigated 本文利用磨盘型力化学反应器对被碾磨材料施加强大的剪切、环向应力、挤压、拉伸和摩擦作用，研究聚丙烯碾磨和共碾磨粉碎过程微观形态结构和性能的变化，以及聚合物在碾磨过程中呈现的力化学现象，并将其应用拓展至金属、橡胶等体系，研究碾磨粉碎在聚丙烯铁超微粉体的制备、高交联密度弹性材料废旧轮胎橡胶( wtr )的超微粉碎，以及pp fe ， pp wtr材料的性能与碾磨作用的关系。
Citing five - meter - high nanfei river rubber dam in hefei , one of the highest double - anchor water rubber dam in china as an example , while deeply analyzing some representative rubber dam projects in china , the article theoretically exploits the relationships among some technical parameters such as anti - pull intensity , internal pressure ratio , circum - oriented relative extending rate , etc . also has the author brought up his own opinion on rubber dam design & calculation theory , which is of high theoretical and applicative value for parameter optimization and combination of water rubber dam with a height of above 3 . 5 meters . it also helps when building over - five - meter - high rubber dam using seamless rubber dam and rubber dam with steel wire as its frame . this article also exploits safety measures for designing & building rubber dam in navigation areas 本文以充水式双锚固橡胶坝目前国内最高(坝高5m )之一的合肥市南淝河橡胶坝工程为例，并在对全国目前已建橡胶坝代表工程进行深入分析的基础上，对坝袋的抗拉强度、内压比、环向相对伸长率等技术参数之间的关系进行了理论探讨和研究，并对橡胶坝设计计算理论提出了自己的见解和看法，对指导设计坝高3 . 5m以上的充水式橡胶坝技术参数的优化组合具有重要的理论和应用价值，特别对应用无搭接缝橡胶坝、钢丝网骨架橡胶坝建造坝高大于5m的橡胶坝具有指导意义。
It can be concluded that the performance differences between the plate membrane and the hollow fiber membrane can be attribute to difference of the stresses in the membranes when they were under pressure and the difference of the strain caused in the membrane , besides the possible reason that the surface curvature difference between a plate substrate and a hollow fiber one may cause structure difference in the dense functional layer when coating . the stresses in a hollow fiber composite membrane under an outside pressure are quite different from that in a plate one in that they exert on the hollow fiber in both the radial and circular directions , and the compress strain of the hollow fiber is thus much more complex , which may cause the top layer crinkle and a decreased salt rejection 分析认为造成平板复合膜( )和中空纤维复合膜( )性能差异的主要原因，除了平板基膜与中空纤维基膜因表面曲率不同可能引起在涂覆时形成的致密功能层结构上的差异之外，由于中空纤维膜受外压时，膜内部承受的应力形式与平板膜不同，会同时在径向(膜厚度方向)和环向(膜面内方向)两个方向产生压应力，因此，所发生的形变也较为复杂，可能造成表面复合层的起皱或脱落，引起脱盐率下降。
With the different loading ratio of parallel to axis and normal to axis direction , damage defects will occur bulking problem . by varying the degree of material anisotropy relative to the loading axis such as poisson ' s ratio and shear modulus , crack growth bulking strain value parallel to or normal to the loading axis is different . the parameters controlling the growth or arrest of the delamination damage are identified as the geometry and the depth of defects and radius of cylindrical etc . at last , it was investigated that the delamination damage is often induced by the tip of matrix damage under higher stress 研究结果表明:壳体筒段受轴向拉伸和内压载荷作用时，轴向和环向载荷的比率不同，母层和子层可能发生拉伸屈曲，也可能发生收缩屈曲，或者同时发生拉伸和压缩屈曲;母层与子层各向异性存在差异，即泊松比与剪切模量不匹配时，将使子层板的边界上承受压缩和剪切作用，当分层达到临界状态则发生屈曲，当母层与子层的各向异性差异越大，则发生分层屈曲的可能性越大;分层损伤的屈曲应变值与子层自身的弹性模量、分层子层的形状、厚度以及圆柱半径等因素有关。
In the past , two following respects that the study on magnetoelastic stability theory was main and centralized : first , setting - up and revision of the soft ferromagnetism plates buckling theory model ; second , represented by the tokamak thermonuclear current - carrying rector coil , the stability of current - carrying coils and poles under magnetic field has been studied 以前，对磁弹性稳定性理论的研究主要集中以下两方面：一、软铁磁性薄板屈曲理论模型的建立及修正；二、以tokamak核聚变反应堆环向磁场载流线圈为代表的对载流线圈及载流杆件的稳定性研究。
For the stress analysis of dryers under the line load of supporting rollers , according to hoff theoretical solution of thin cylindrical shell under line loads , mangelsdorf approximate solution is modified on the basis of the calculation analysis for 14 sets dryers " dimension by computer programming with matlab software . the approximate formulas of the second largest hoop stress of the middle section of the shell are derived 针对托辊线压载荷作用下烘缸的受力分析，本文根据薄壁圆柱壳在线压载荷作用下的hoff理论解，在运用matlab软件对14组常用烘缸参数进行编程计算分析的基础上，对mangelsdorf近似解作了修正，并由最小二乘法导出壳体中部截面环向应力次大值的近似计算式。
In this paper , the equilibrium equation of liquid bulge forming small tangential round corner is deduced for the complicated shape tube - type blank , the function equation between forming stress parameters are and the small corner are obtained ; the forming mechanism of the small tangential corner is studied , the matching relation between liquid bulging pressure and axial thrust is given , the optimal liquid bulging force parameters are determined 摘要本文推导出复杂形状管类件复合液压胀形时环向小圆角成形的平衡方程，得出了成形应力与环向圆角半径的解析关系；研究了环向小圆角成形机理，确定了液体胀形压力与轴向推力的匹配关系以及最佳的成形力参量。
On basis of collecting information about the application of prestressing system to anchorage zone of pylon for cable - stayed bridge , theoretical analysis and full - scale mode test are carried out to research the application of circular prestressing system which radius is small and prestressing force is strong 在收集了国内有关斜拉桥索塔锚固区预应力体系应用情况资料的基础上，对小半径大吨位环向预应力体系在工程实践中的应用进行了理论分析和足尺寸模型试验研究。
