There is a fracture process zone near the crack tip for the tensile strain softening materials.
在应变软化材料的主裂缝尖端存在一断裂过渡区。
In the eastern area, the tensile strain is very intensive, while the compressive strain is very weak.
东区存在非常强烈的张应变,压应变则很弱。
The results show that the theoretical and experimental critical surfaces of the maximum tensile strain are very close.
结果表明,按最大拉应变理论所得到的理论临界曲面和试验临界曲面相当接近。
To break down the eutectic carbide network of A-cast structure with grain size 4-5 grade, tensile strain of 60% is needed.
当铸志晶粒度力4 ~ 5级寸,破碎晶炭化物组织需要有60%以上的拉应变。
The effect of tensile strain on electrical resistance of continuous carbon fiber monofilament was investigated in this paper.
研究了连续碳纤维单丝的应变电阻效应,分析了在拉应力作用下其电阻率的变化规律。
At the same tensile strain, the power law relationship between band propagating velocity and applied strain rate is also obtained.
得到了在相同应变下,变形带的传播速率和加载应变速率之间的幂律关系。
When the tensile strain reaches the limit load, the force of tension suddenly becomes very small, because clusters structures change.
当拉伸应变达到承载极限,继续拉伸,力突然变的很小,这是因为团簇发生了结构变化。
The hot tensile strain process of the microstructure of duplex stainless steel was investigated with high temperature microscope (CSLM).
本文利用共聚焦激光扫描高温显微镜(CSLM)等设备对双相不锈钢的高温拉伸微观变形过程进行了研究。
The measurement of tensile strain distribution of optical fiber is very necessary to guarantee the long-term reliability of optical cable.
通信光缆拉伸应变分布测量对于保证光纤通信线路的长期可靠性具有十分重要的意义。
According to the curve, the spall strength, the thickness of spall scab and the tensile strain rate under different condition were obtained.
根据所得曲线波形计算出相应条件下的层裂强度、层裂片厚度以及各自的应变率,最后得到层裂强度随拉伸应变率变化的关系曲线。
Through the limits applied on concrete compression strain and steel tensile strain, the deformation limits on RC beams and columns are developed.
通过混凝土受压应变和钢筋受拉应变的限值得到钢筋混凝土梁、柱的变形限值。
The damage tensile strain of asphalt mixture decreases after long-term aging:17.4% for recycled asphalt mixture and 12.2% for new asphalt mixture.
长期老化后,混合料的破坏拉伸应变降低:再生沥青混合料降低幅度为17.4%,新沥青混合料降低幅度为12.2%。
On the basis of test data, this paper gives the probability distributions of the limit tensile strain of large full graded samples and small wet screened ones.
根据实测资料,给出了全级配混凝土大试件和与其对应湿筛后混凝土小试件拉伸极限应变的概型分布;
The important mechanical factors of lung injury might be tensile strain or stress in alveolar wall, and pulmonary superficial impact on the inside wall of lung.
肺损伤的重要力学因素可能是肺泡壁的拉伸应力或应变和肺表面的碰撞。
The plastic fiber selected has different ultimate tensile strain and elastic modulus, and the fiber can be carbon fiber, aramid fiber, glass fiber and the like.
选用的塑料纤维应具有不同的极限拉应变和弹性模量,纤维可以为碳纤维、芳纶纤维、玻璃纤维等。
Generally, the area with low strain and predominant tensile strain might have a small possibility for strong earthquake development, which belongs to a stable area.
一般低应变区和张应变为主导的地区,孕育强震的可能性小,属于比较稳定的地区。
When the ratio not more than 0.2, CFRP tensile strain can reach or exceed the permissible strain at ultimate capacity state, and therefore CFRP can work efficiently.
当配筋特征值不大于0.2时,承载能力极限状态下碳纤维片材的拉应变可以接近或超过允许拉应变,因此可以有效地对受弯构件正截面承载力进行加固;
Research results show that the relationship between autogenous shrinkage at early ages and ultimate tensile strain can be approximately figured by a quadric equation.
研究结果表明,混凝土早期自收缩大小与相应的极限拉伸应变具有显著的二次曲线关系;
This paper has studied the changes about tensile strain hardening exponent (n-value) in three kinds of st steels by testing n-values and found changing tendency of them.
进行三种ST钢的应变硬化指数n值试验,分析试验结果,研究n值在整个应变区间的变化趋势。
The main factor causing destruction of roadway in tectonic stress field is found to be the high tensile strain, which appears after the coal seam above haulage roadway is mined.
提出在构造应力场中,开采运输巷道上方的煤体使巷道产生拉伸形变是巷道破坏的主要根源。
Fatigue is one of criterions in asphalt concrete pavement design, failure of asphalt concrete fatigue has correlation with the magnitude of tensile strain of asphalt layer bottom.
疲劳是沥青路面设计标准之一,沥青混凝土的疲劳失效与沥青层底拉应变值的大小相关。
The correlation between the compressive strength and axial tensile strength of RCC with placing joint and ultimate tensile strain of placing joint of RCC layers have been obtained.
通过试验研究给出有层面碾压混凝土抗压强度、面轴拉强度与层面极限拉伸值间相关关系。
Considering the randomness of strength and deformation of concrete material, a mathematic approach of producing random variables series of concrete ultimate tensile strain is proposed.
针对混凝土构件材料强度和变形性质的随机性,采用数学方法提出构造混凝土极限拉应变数列的原理。
The front impact roller causes transverse plastic compression strain in the weld which is in the brittle temperature range, which counteracts the tensile strain which leads to hot cracking.
前轮对处于脆性温度区间的焊缝金属施加一个横向挤压塑性应变,减小甚至抵消致裂的拉伸应变,防止了焊接热裂纹的产生。
Introduced in this paper are two fracture critical surfaces of three dimensional mixed mode obtained from the theory of strain energy density factor and the theory of maximum tensile strain.
本文对按应变能密度理论和最大拉应变理论所推导出的两个三维复合型断裂临界曲面作了简要介绍。
From the results of the experiments, a conclusion can be acquired. In terms of J55, its dynamic tensile strain-stress curve is a typical deformation - recovery curve of the rheological metal.
结果证明:对于J55钢,在这一温度范围内的动态拉伸应力-应变曲线,是典型的流变金属的形变-回复曲线。
Taking the maximum tensile strain of the liner system as the control parameter, the design method of the liner system resisting the local subsidence was given for the engineering application.
建立了其受力变形分析模型,并以衬垫系统的最大拉应变作为控制标准,建立了工程上衬垫系统的抗沉陷设计方法。
The tensile displacement and angle of rotation of tensile strain localized band are analyzed in strain softening stage and in real crack propagation stage based on gradient-dependent plasticity.
基于梯度塑性理论,分析了应变软化及真实裂纹扩展阶段的局部化带的张拉位移和转角。
The tensile displacement and angle of rotation of tensile strain localized band are analyzed in strain softening stage and in real crack propagation stage based on gradient-dependent plasticity.
基于梯度塑性理论,分析了应变软化及真实裂纹扩展阶段的局部化带的张拉位移和转角。
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