抗扭强度

It is shown that the strengthening mechanisms came from many aspects, including the tension and compression of crystal planes, the bending and distortion of crystal lattices, the increase of dislocation density, the formation of cellular dislocations, the transformation of part of the residual austenites.

以300M超高强度钢为例，运用多种测试手段，如TEM、SEM、XRD以及金相分析技术，发现强化层组织中晶面的拉伸和压缩，晶格的弯曲和歪扭，位错密度的增高，胞状位错的形成，部分残余奥氏体向形变马氏体的转变等现象，在综合分析的基础上指出，位错强化是抗疲劳增寿的主要因素。

Sonus tubing increases strength and torsional rigidity by over 30% compared to comparably sized oval tubes.

Sonus材身相比与相同大小的椭圆材身在强度和抗扭刚度上提高了30％。

Sonus Tubing Sonus tubing further increases strength and torsional rigidity with a custom profile.

Sonus材身 Sonus材身的定制剖面进一步增加了其强度和抗扭刚度。

Analysis of the test results indicates that, before the ultimate torsion carrying capacity, the specimen keeps plane approximately and the steel tube and its outer CFRP material can cooperate circumferentially.

结果 试件的破坏属于强度破坏；在抗扭极限承载力之前，试件基本符合平截面假定；钢管和CFRP筒可以协同工作。

It is analyzed that the impacts of vegetation type on shear strength of unsaturated soil through direct shearing tests for unsaturated soil of different depth and various vegetation types which consist of bare soil, tanglehead grassplot, switch sorrel shrubbery and eucalyptus holt under natural moisture contents.

中文摘要：通过对裸地、扭黄茅草地、车桑子灌木林地和桉树林地四种不同植被类型、不同深度土壤在天然含水量情况下的直剪试验，研究了植被类型对非饱和土抗剪强度的影响。

Separate frame and metal titanium silk in middle pole technique has improved frame intensity, and can even improve wrest resistance of rackets when hitting balls, you can also feel metal sounds from hitting balls.

排框和中杆金属钛丝技术，提高拍框强度，能更有效提高拍面在击球时的抗扭性，而且击球时有金属声效果。

Separate frame and metal titanium silk in middle pole technique has improved frame intensity, and can even improve wrest resistance of rackets when hitting balls, you can also feel metal sounds from hitting balls.

排框和中杆金属钛丝技术，提高拍框强度，能更有效提高拍面在击球时的抗扭性，而且击球时有金属声效果。3。高弹与柔韧－中杆技术使选手在后场时拉吊更具威力，前场的控制收放自如。

The results showed that the performance of the drill pipe joints was in line with standard and the main reason was that the making up torque was inadequate.Drill pipe joints in underground unrestrained tightening-up caused the drill pipe joints to bear the excessive load more than their anti-torque yield strength.

结果表明：钻杆接头的各项性能指标均符合标准规定，失效的主要原因是上扣扭矩不足，钻杆接头在井下无节制旋紧，致使钻杆在井下的自上扣扭矩超过了钻杆接头的实际抗扭屈服强度。

Based on the analysis of the theory and technology, a torsion bar mechanism is adopted to measure the moment of inertia, which has good elasticity, largeaccumulated energy characteristic, high fatigue strength resistance, a large range, high accuracy and so on.

在分析转动惯量相关测量理论和测量技术的基础上，设计了一种新颖的扭杆结构，这种结构具有弹性好、储能大、抗疲劳强度高、测量范围大、测量精度高等特点。

Using this fundamental solution, a general method for solving the above mentioned problem is given. Finally, the stress intens...

文中还使用奇异积分方程的数值理论，对二条非共线的等长径向裂纹的应力强度因子和抗扭刚度作了数值计算。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐