The research results show martensite transformation stress decreases with an increase in cycle due to the residual strain during full cyclic loading.
研究表明在完全循环加载过程中,由于残余应变的存在,马氏体相变应力随循环增加而减小。
Based on the shear-lag model and the usual loading way, the computation model of interfacial debonding stress under tension-tension cyclic loading is established first.
基于剪切筒模型和常用疲劳加载方式,首先建立了循环荷载作用下钢筋与混凝土界面脱粘应力的计算模型;
Graphite plays a role as pores in the interface and increases the stress concentration under cyclic loading.
在滚动接触疲劳试验时循环载荷的作用下,界面处的石墨相当于孔洞引起应力集中。
As a result, the stress-relaxation of yarn is obviously observed, and the cyclic loading has much more influence on the tensile property of yarn.
试验结果表明,玻璃纤维长丝纱有较明显的应力松驰现象,反复循环负荷作用对玻璃纤维长丝纱的强伸性能有较大的影响。
The phenomenon of stiffness deterioration (progressive damage) beyond the peak stress has been observed in cyclic loading tests of coals, rocks, concretes, soils and sands.
峰后的刚度劣化现象(渐进损伤)在多种煤、岩石、混凝土、土和砂子的循环加载实验中已被观察到。
The iterative formulas of elastoplastic stochastic finite element method (SFEM) under cyclic loading are deduced and the random responses of local multiaxial stress and strain are calculated.
推导了交变载荷下弹塑性随机有限元的迭代格式,计算了局部多轴应力应变的随机响应。
The result shows: the local residual tensile stress and cyclic compressive loading thrust fatigue crack initiation and propagation in the size of compressive plastic zone.
结果表明,疲劳裂纹是在残余拉应力和循环压应力作用下萌生和扩展的,压塑性变形是裂纹萌生和扩展的必要条件。
Effect of initial mean effective stress on the behavior is examined by tests under undrained cyclic loading at several initial confining stresses with the same stress rations.
试验初步研究了通过用初始有效平均正应力归一化的有效应力路径,归一化有效应力路径有很好的一致性。
The component randomness is considered. The SFEM is introduced in the iterative formulas of EFEM under cyclic loading to obtain the random response of local stress and strain.
考虑零构件的随机因素,将随机有限元方法引入到交变载荷下弹塑性有限元的迭代格式中,得到局部应力应变的随机响应,为低周疲劳可靠性分析提供了更精确的依据。
The effects of the stress ratio in the cyclic loading and the environment medium were studied.
同时研究了循环加载中的应力比以及环境介质对于疲劳裂纹扩展的影响。
The authors also successfully predict the relaxation of the residual stress under successive cyclic loading.
计算预言了脉动循环载荷下自增强残余应力的松弛现象。
When it is forced by the cyclic loading for example earthquake, traffic, wave etc, dynamic properties of soils under complex initial stress condition are different form the general stress state.
当受到地震、交通、波浪等循环荷载的作用时,在复杂初始应力条件下土的动力特性必然将会和一般应力状态下有所不同。
In addition, the generalized relationships between cyclic shear stress on failure plane and the number of cyclic loading causing liquefaction of the sandy soils are also presented.
此外,也给出了饱和砂土液化破坏时破坏面上循环剪应力与循环荷载次数间的一般关系。
For concrete in compression zone a stress-strain relation for repeated axial compressive cyclic loading, is adopted instead of that for reversed loading.
对混凝土受压区采用轴向重复加载的应力-应变关系而不是反复加载的。
The results show that the residual stress of pile is further accumulated in the cyclic loading tests as the number of loading cycles and the level of cyclic loading increase.
结果显示,循环载荷试验加载水平与循环次数的增加会造成残余应力的进一步累积。
There is critical cyclic stress ratio of soft clay under cyclic loading. The value of critical cyclic stress ratio can also be obtained by pore water pressure curves.
循环荷载作用下饱和软黏土存在临界循环应力比,通过孔压也可以确定其值大小。
Concrete stress-strain curves under cyclic loads include not only envelope curve, but also unloading and re-loading curves.
混凝土的反复加载应力-应变曲线不仅包括骨架曲线,还包括卸载及再加载曲线。
Complete stress-deformation curves for concrete in tension were obtained from axial tension tests in which some of the specimens were tested under cyclic loading.
本文通过试件的中心受拉试验,测定了砼的受拉应力-变形全曲线。部分试件还进行了反复荷载试验。
As a result, the stress-relaxation of yarn is obviously observed, and the cyclic loading has much more influence on the tensile property...
试验结果表明,玻璃纤维长丝纱有较明显的应力松驰现象,反复循环负荷作用对玻璃纤维长丝纱的强伸性能有较大的影响。
As a result, the stress-relaxation of yarn is obviously observed, and the cyclic loading has much more influence on the tensile property...
试验结果表明,玻璃纤维长丝纱有较明显的应力松驰现象,反复循环负荷作用对玻璃纤维长丝纱的强伸性能有较大的影响。
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