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- cyclic load history 循环加载历史
- This mimics a more physiologic situation than to apply a cyclic load at the center of the ertebra or with a constant leer arm at a certain point. 这与在椎体中心加载一个循环负荷或在某个定点上加载一个恒定不变的杠杠力臂相比,这种模仿更加接近生理状况。
- The working principle of the AE sensor is introduces,and the AE testing system of grooving sample fracture under cyclic load is set up. 介绍了AE传感器的工作原理 ,建立了循环载荷条件下切槽试样断裂声发射检测系统
- It analyzes this type of deformation in metal material under static and cyclic load, provides the scientific basis for choice dynamical stress of VSR. 分析了静载荷及循环载荷下的微塑性变形行为,认为振动时效动应力的选择应以材料的疲劳极限作为依据。
- The effects of material metallur-gy, shot--peening treatment, tensile load, strain rate, cyclic load and water chemistry on the behavior ofSCC are investigated. 研究的影响因素包括材料冶金、表面喷丸处理、载荷、应变速率、循环载荷以及水化学条件对SCC的影响规律。
- Based on the experimental study on the rammed-earth wall subjected to monotonic load and cyclic load,the shear behavior and the seismic performance of the earth wall are analysed. 通过对不同类型的夯土墙在单调荷载和反复荷载作用下的试验研究,分析了不同添加材料对夯土墙抗剪性能、抗震性能的影响,得到了夯土墙的裂缝开展规律、破坏特征、承载能力、延性及滞回性能。
- Experiments are conducted on novel composite structures with flexible reinforced concrete beams and columns and herringbone braces under low-period cyclic load. 摘要针对用于代替黏土砖住宅结构的钢筋混凝土柔性梁柱加入字支撑形成的新型复合结构,进行了低周反复荷载下的抗震试验研究。
- During the test, the specimens were reoled around their own longitudinal axis while under an eccentric cyclic load to proide a complex load combination. 在试验期间,当承受偏心循环负荷的时候,标本都绕其自身的纵轴旋转,从而提供一个复合的负荷组合。
- Related experiments show that sand will exhibit its softeningcharacteristics under the monotonic load and cyclic load by liquefactionor limit liquefaction. 相关试验结果表明,砂土在单调荷载及循环荷载作用下将出现应变软化特性,表现为液化或有限液化。
- Three centrically braced frames filled with foamed aluminum subjected to reversed cyclic load are tested in the paper with the purpose of researching their hysteresis behavior. 对3榀中心支撑框架进行了滞回性能研究,其中2榀框架的支撑部分填充了泡沫铝材料,主要考察支撑填充泡沫铝后对框架整体滞回性能的影响。
- Damages first came out from some weak zones of H profiled bar joints such as weld seams and bolt joints, because rigid joints did not show enough tensibility under cyclic load. 试验过程中,刚性节点在循环荷载作用下没有表现足够的延性,H型钢连接件的焊缝及螺栓连接等薄弱区首先破坏;
- Eventually, the rehabilitated specimens were retested under low cyclic loading. 加固后的试件进入第二阶段试验,即在低周反复荷载作用下直至破坏。
- Also, elastic deformations depend solely upon the stress magnitude and not upon the straining or loading history. 弹性变形响应符合经典弹性理论的线性本构关系,即虎克定律。
- Five specimens are tested under cyclic load reversals,and the shear strength, the stiffness, the deforability and the energyconsumption of the walls are analyzed. 进行了五榀墙片的反复荷载试验,分析了其受剪承载力、刚度、变形性能和耗能能力。
- The damage form and aseismic behavior and deformation capacity of cavil walls are studied by pseudo-static low cyclic load test whose sample includes three cavity walls. 通过3片不同拉接筋间距的空心砖复合夹心墙及1片空心砖实体墙的低周期反复荷载试验,研究夹心墙体的破坏形态、抗震性能及变形能力。
- Finally, the damage evolution rule of concrete due to triaxial compressive loading history is summarized, and the problems that should be solved in the future are presented. 然后,对混凝土经历各种三轴受压荷载历史后损伤的演化规律进行了深入研究,幷提出进一步研究应重点解决的问题。
- Based on the working principle of EBF, the numerial models of single storey Y style eccentrically braced steel frame are established and the mechanism of the models is analyzed under cyclic load. 本文结合EBF的工作原理,建立单层Y型耗能支撑模型,并对该模型进行反复荷载作用下的受力性能研究。
- To analyse stretch bending of narrow strip by numerical calculation, taking the loading history into account, the deformed zone was divided into many elements to determine their strain by the condition that constant volume remains in deformation. 摘要在考虑加载历史的情况下,为采用数值方法研究窄板拉弯成形,将变形区划分成若干个单元,按塑性变形体积不变条件,确定单元应变。
- C. Boller, and T. Seeger, 1987, Materials Data for Cyclic Loading, Vol.1-5, Elsevier Science Publishers, Amsterdam. 刘国雄、林树均、李胜隆、郑晃忠、叶均蔚编著,2000,工程材料科学,全华图书公司。
- The materials be yielded due to its particles separated to a critical value K0 which is effected by the factors of three-dimensional stress, loading history, external environment etc. 本文从材料构成的基本物理概念出发,简要说明了材料的屈服是受三向应力、荷载历史、外界环境等的作用,材料内部紧密相连的质点间的距离增大到某临界值K_0所致。