查询词典 failure stress

It was found that: the failure form of the stubble will be splitting and breaking when the stalk is cut by single blade; And it will be axial direction crack by torsional shearing stress, splitting and breaking by bending stress when the stalk is cut by two or more blades one by one.

结果表明：甘蔗茎秆受一刀切割时，根茬破坏的模式有劈裂和弯曲断裂；受两刀或多刀切割时根茬破坏模式有因扭转而产生的纵向裂纹，因弯曲而产生的劈裂和弯曲断裂。

Firstly,according to the mechanical properties of soft clays and the traffic load induced dynamic deviator stress ,the static failure deviator stress was determined.

首先通过确定车辆荷载引起的动偏应力和土层的力学指标计算出静力破坏偏应力，然后通过考虑土物理力学性质、循环荷载次数的累积变形公式计算软土地基中各土层在车辆荷载作用下引起的残余累积应变，最后用分层总和法计算总沉降。

The failure criterions of principal stress, octahedral stress and strain space are established.

建立了主应力、八面体应力和应变空间的混凝土破坏准则。

In addition,respective failure criteria for mass concrete in principal stress space and octahedron stress space are proposed.

这就要求在设计中考虑实际应力下大体积混凝土的强度及变形情况，制定出更合理的规范。

Formulas of shearing stress and bending stress were derived, and the failure criterion was given in the paper.

推导了根茬在切割过程中受到的剪应力、弯曲应力计算公式，给出了破坏准则。

Through the chemical composition analysis, metallographical observation, Manson-Haferd parameter extrapolation and thermal-stress calculation, it is found that the failure of conic nozzle was caused mainly by the thermal stress.

通过对一失效的下集气锥形管的金相宏微观检查、Manson Haferd参数估算锥形接管的持久寿命以及热应力的计算，发现锥形接管的失效原因主要是由温差应力所导致。

Cracking patterns, streel bars's stress distribution and force-displacement curves at beams ends resulted from the experiments indicate that at location of plastic hinge area the main cracks developed sufficiently and the stress of steel bars was peak values, and no bonding failure of steel bars is found within core region of assemblies.

有限元分析所得裂缝分布、钢筋应力分布以及梁端力－位移曲线反映出，高强钢筋混凝土框架梁柱组合件在低周反复荷载作用下梁端塑性铰区裂缝开展充分，钢筋应力最大，核芯区内钢筋未发生粘结破坏。

The results show that the mechanical properties of this PMMA depend strongly on the testing temperature. The Young's modulus and flow stress were found to decrease with increasing temperature at low strain rate. At the strain rate of 10^(-1) 1/s, strain soften was observed under all experiment temperatures. At high strain rate, with the temperature increase, the flow stress deceases remarkably while the failure strain increases, and the strain softening was also observed at the temperature above 333K.

试验结果表明：在准静态载荷下，随着温度的升高，材料的弹性模量和流动应力减小，在应变率为10^(-1) 1/s时表现出明显的应变软化行为；在高应变率(550 1/s)下，随着温度的升高，材料的流动应力逐渐减小而破坏应变增大，当温度超过333K时也有应变软化现象发生；在相同温度下，随着应变率的升高，材料的流动应力增大，但破坏应变减小。

First of all, by using of the split-hopkinson pressure bar, the test of siltstone failure/fragmentation under dynamic loading is carried out to investigate the deformation and failure behavior of siltstone after high temperature and the effect of temperature on rock dynamic constitutive relation, peak stress and absorbing energy.

论文作者采用霍普金逊压杆实验系统对高温处理后的粉砂岩进行了单轴冲击加载实验，研究了不同温度处理后粉砂岩的动态力学特性和破坏特征，得出温度对岩石动态本构关系、峰值应力、峰值应变和弹性模量的影响规律。

It is clarified for the first time that the thermal fatigue failure of solder joint is actually a creep strain low cycle fatigue failure, and a physical model for creep fatigue crack propagation has been proposed. It was pointed out that creep strain increases in the high stress area ahead of the tip of thermal fatigue crack, results on one hand that the slide of crack tip increase, inactivation more serious and crack close length increases, the other hand, that intergranular crack exists, whose direction will affect the fatigue crack propagating.

本文首次阐明了焊点的热循环失效本质上是以焊点内循环蠕变为主要应变的低周疲劳失效，并在此基础上提出了蠕变疲劳裂纹扩展的物理模型，指出热循环裂纹前端的高应力区内，蠕变加剧，使裂纹前端滑移增加，裂纹钝化加剧，导致随后的裂纹闭合扩展长度增加；同时蠕变也使裂纹前端的高应力区出现晶间裂纹，蠕变沿晶裂纹对主裂纹扩展的影响取决于沿晶裂纹的连接方向。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。