破坏应力

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。

The strength criterion of rock loaded by compression stress and tensile stress can be described with linear relation of stresses.

岩石在压拉应力作用下发生的拉伸破坏可以利用应力之间的线性关系描述。

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。

If the stress is above yield point, the column will be destroyed due to compression stress.

时成立。应力在屈服点以上时，由于压缩应力，柱子将会破坏。

In the early Paleozoic and Indosinian cycle, the tectonic movement is weak, and the rock has acoustic emission once, whose maximum paleo-stress is 13.3MPa and 24MPa, moreover the Majiang ancient reservoir is in the mainly accumulation period; the high frequency and intensity paleo-stress correspond to the Majiang ancient reservoir's reservoir comes into being or destruction. The single Neopaleozoic acoustic emission whose maximum paleo-stress is 92.6MPa means the reservoir comes into being.

在早古生代末期和印支期构造运动较弱，测试岩石的发声一次，古应力值分别为13.3MPa和24MPa，是麻江古油藏的主要成藏期；声发射次数较多或者古应力值较大时的时期，主要对应于麻江古油藏储层的发育期和油藏大规模破坏期。

The article theoretically calculated and analysed the assembly Stress of the pontes to proofread the allowable stress of the plate and rivets.

本文以铆钉为例，从连接部分所受到的装配应力角度进行理论计算分析，校核板件与铆钉的许用应力，分析结构的稳定性，并预测连接部分的破坏部位。

The article theoretically calculated and analysed the temperature stress of the pontes to proofread the allowable stress of the plate and rivets.

本文从连接部分所受到的温度应力角度进行理论计算分析，校核板件与铆钉的许用应力，分析不同温度对结构稳定性的影响，并预测连接部分的破坏部位。

The article theoretically calculated and analysed the assembly Stress of the pontes to proofread the allowable stress of the plate and rivet s.

本文以铆钉为例，从连接部分所受到的装配应力角度进行理论计算分析，校核板件与铆钉的许用应力，分析结构的稳定性，并预测连接部分的破坏部位。

Discussion on the Increased Range of Allowable Stress in the Design Code for Industrial Metallic Piping;2. The article theoretically calculated and analysed the assembly Stress of the pontes to proofread the allowable stress of the plate and rivets.

本文以铆钉为例，从连接部分所受到的装配应力角度进行理论计算分析，校核板件与铆钉的许用应力，分析结构的稳定性，并预测连接部分的破坏部位。

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。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。