无应力的

In this paper,the boundary singular kernel method in Reproducing Kernel Paicle Method has been applied to impose the essential boundary conditions in EFGM by revising the MLS shape function.The stress field and the displacement field are analysed by linear elastic theory.The contour integral method is used to calculate the J-integral,then the stress intensity factors of mixed-mode crack is acquired.The correctness and the validity of the method are validated.

本文将再生核质点方法中的边界奇异权方法引入EFGM中，通过对MLS形函数进行修正实现了本质边界条件在节点处的精确施加；运用线弹性断裂理论分析裂纹板的应力应变场，采用围线积分法计算J积分，给出了复合型裂纹板的应力强度因子的无网格伽辽金方法。

3D finite element model of concrete pavement in transverse joint with dowel bar s or without dowel bar s is established by 3D finite element numerical analysis method.

建立接缝无传力杆及设传力杆时水泥混凝土面层结构的三维有限元模型，运用数值分析方法，分析接缝处水泥混凝土面层的荷载应力、弯沉值和弯沉差，研究了地基模量、传力杆直径对荷载应力及弯沉差的影响规律，并对条件相同的计算结果进行了对比分析。

The model included speed control, load control, valve management, valves test, RUNBACK, overspeed protection, LDA, CIV, ETS, RSM, MEH, gland seal system etc, discussed the strategy of valve management, RSM, control loop smooth switching with emphasis.

模型包括了转速控制、负荷控制、阀门管理、阀门试验、RUNBACK、超速保护、甩负荷预测、中压调门快关-快开、紧急跳闸保护、转子热应力控制、MEH控制和轴封控制等功能，重点讨论了阀门管理策略、负荷控制回路无扰切换策略和转子热应力控制策略，对实际系统尚未投入使用的甩负荷预测和中压调门快关-快开功能也进行了建模仿真。

Results: Under the two boundary conditions, finite element analysis results demonstrated that the ossification degree of the subdental synchondrosis did not obviously influence the high stress distributions, as well the maxium von Mises equivalent stress.

结果：两种约束条件下，枢椎有限元计算预测结果发现枢椎软骨基质的融合程度对枢椎高应力集中带分布无明显影响，最大von Mises等效应力值改变亦不明显。

Based on true triaxial tests, this paper proposes an angle of equivalent internal friction a.

结合以往的真三轴试验结果，建议了一个复杂应力状态下的等效内摩擦角，在此基础上提出了一个考虑中主应力影响的无粘性土(c=0)的破坏准则。

The test results obtained accor- dingly are presented in this paper .Three stopes with different spans (8m , 16m, 24m ) were selected for the purpose of stress study with epoxylite model .

采用环氧树脂模型研究了三种不同跨度(8米、16米、24米)采场，在支护网度为1×0.8米~2及无锚杆护顶时顶板应力分布状况，同时也研了在相同条件下，锚杆支护网度为0.8×0.8米~2、1.6×0.8米~2时顶板应力分布状况，从而阐明了锚杆支护的实际效果。

The analysis of the application of grooveless rolling technology proves that grooveless rolling can be successfully realized in the big-distance mills.

通过对无孔型轧制的工业试验和技术分析，得出无孔型轧制可在大间距轧机上实现，脱方控制的关键点是导卫控制和宽展控制，翻平宽展能使轧件产生圆弧钝角，避免了应力集中和裂纹，采用无孔型轧制具有可统一坯料、提高轧辊寿命2～4倍、降低能耗6%～7%等优点。

Three stopes with different spans (8m , 16m, 24m ) were selected for the purpose of stress study with epoxylite model . The distributions of roof stress under the condition of 1×0.8m support grid compared with unsupporting , and that of roof bolting patterns of 0.8×0.8m, 1×0.8m, 1.6×0.8m were also investigated . Finallg , the authors evaluate the practical effects of roof ?

采用环氧树脂模型研究了三种不同跨度(8米、16米、24米)采场，在支护网度为1×0.8米~2及无锚杆护顶时顶板应力分布状况，同时也研了在相同条件下，锚杆支护网度为0.8×0.8米~2、1.6×0.8米~2时顶板应力分布状况，从而阐明了锚杆支护的实际效果。

The micro-morphology of the fracture surface appears to be the inter-granular brittle before sodium corrosion for the rotary swaging and polishing W-specimens.

经高温钠腐蚀后，旋锻钨试样的晶粒长大，断裂应力和显微硬度显著降低；高温钠腐蚀对抛光钨试样的断裂应力和显微硬度似乎无明显影响。

Then,the left external carotid artery of 40 adult New Zealand White rabbits were ligated,which reduced the pulsatile shear stress of left common carotid significantly (for example, mean=21.16 ± 7.17 vs 3.13±2.28 dynes/cm2, p=2.176E-21)and did not change the pulsatile shear stress of right common carotid significantly.

结果左颈外动脉结扎后即刻兔的左颈总动脉形成脉动低切应力以τ_(mean为例，从21.16±7.17dynes/cm~2降至3.13±2.28dynes/cm~2，p=2.176E-21，并一直持续至结扎12周后；而右颈总动脉脉动切应力始终无显著变化。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。