The tensile strength of the bonded plate was measured,the crack propagation,the interface disbond between the patch and the plate,and the residual tensile strength of the bonded plates were also investigated.
结果表明,复合材料补片胶接修补能有效地提高裂纹板的破坏强度和刚度,降低裂纹板的疲劳裂纹扩展速率,提高其疲劳寿命。
The effectiveness of the repair scheme,including the tensile strength,the fatigue life and the crack progress during fatigue was investigated experimentally.
利用热压成型工艺、采用预固化的单向碳纤维/环氧复合材料补片对铝合金裂纹板进行了修补,测试了裂纹板胶接修补前后的破坏强度、疲劳寿命及裂纹扩展情况,观察了破坏后的断口形貌,分析了复合材料补片的止裂机理。
The effectiveness of the repair scheme, including the tensile strength, the fatigue life and the crack progress during fatigue was investigated experimentally.
利用热压成型工艺、采用预固化的单向碳纤维／环氧复合材料补片对铝合金裂纹板进行了修补,测试了裂纹板胶接修补前后的破坏强度、疲劳寿命及裂纹扩展情况,观察了破坏后的断口形貌,分析了复合材料补片的止裂机理。
The sample height,water content,stress-strain behavior,failure strength,elastic modulus,cohesion and internal friction angle were measured in unfrozen soil as well as in thawed soil.
为研究冻融循环作用对土物理力学性质的影响,以青藏粘土为研究对象,通过对室内制备的粘土试样在经历0～21次完整冻融循环过程后,进行不同围压下三轴压缩试验,研究经多次冻融作用后,高度、试样含水量、应力–应变行为、破坏强度、弹性模量、抗剪强度指标等物理力学性质的变化。
The tensile failure strength is found to be in good agreement with the experimental results.
采用有限子层剪滞模型,并结合线弹性断裂力学,研究了带裂缝钢纤维混凝土试样的拉伸破坏问题,求得了与实验结果较吻合的拉伸破坏强度,证实了该分析方法的正确性和可靠性,可为钢纤维混凝土的破坏分析提供一种新的研究途径。
Mechanical behaviors such as deformation,stress distribution and failure strength are analyzed.
应用连续介质力学有限变形基本理论和超弹性理论,建立钢丝编织胶管的多层圆筒模型,得到了胶管变形和应力分布与内压的关系,分析了胶管的变形、应力分布和破坏强度等力学性能,并且讨论了钢丝层的弹性模量、胶管的轴向伸长等材料或几何因素对其变形、应力分布和破坏强度的影响。
Based upon these results,the rules of strength fracture about space lattice structure are studied under multiple s.
通过对极限加速度峰值、最大节点位移时程、塑性杆件数量和分布及网壳破坏形态这些重要参数的统计、对比、分析和归纳,剖析了大跨空间网格结构在多点输入和一致输入下的强度破坏机理。
It includes three parts in detail: how to use the elastoplastic time history method under multiple support excitation actually, the differences of the structural behaviors between multiple and simple support excitation, the rules of strength fracture under those two input modes.
本文的研究内容是大跨空间网格结构在多点输入下的弹塑性时程响应分析,其中包括多点输入下弹塑性时程分析方法的实现;多点输入与一致输入下结构响应的差异;多点输入与一致输入下结构强度破坏机理的分析比较。
Dynamic strength failure of geodesic latticed shells subjected to severe earthquake actions;
短程线网壳结构强震作用下的动力强度破坏
Elastoplastic seismic response and strength failure analysis of Laoshan bicycle-gymnasium for the Olympic games are studied under multiple and simple support excitation.
采用时程分析法分别对奥运会老山自行车馆进行了多点和一致输入下的弹塑性地震响应和强度破坏分析。
Two kinds of failure mechanisms of reticular shells subjected to dynamic actions ,dynamic instability mainly due to the second-order effect of shell structures,and the strength failure mainly due to excessive development of plastic deformations,are studied in a unified theoretical frame based upon non-linear dynamic response analysis.
研究了球面网壳结构在地震等动力荷载作用下两种可能的失效机理 :由于几何非线性起主要作用导致的动力失稳和由于塑性变形过度发展导致的强度破坏。
The result shows that the sensor can measure explosive breaking strength efficiently; moreover, the sensor can be regarded as an explosive wave damage criterion for evaluation in the near field.
通过机械传感器对炸药近爆区爆炸波破坏作用研究 ,引进爆炸波能量面密度的概念 ,结果表明 ,机械传感器可以有效地测量近爆区爆炸波破坏强度 ,爆炸波能量面密度可以作为近爆区爆炸波破坏作用评定标准 ;比较机械传感器与压电传感器测量结果 ,二者在距爆心较远区数值吻合较好。
Mechanical Behavior and Failure Strength of Fiber Braided High Pressure Rubber Hoses
钢丝编织高压胶管的力学性能及破坏强度
Macro- and Micro-mechanics Strength Analysis of Composite Structures;
复合材料结构宏、细观强度破坏分析
Progressive Collapse Analysis of Ship Hulls under Longitudinal Bending;
逐步破坏法计算船体梁总纵极限强度
Composite Laminates with Centric Hole in Static Strength;
含孔复合材料层合板的静强度破坏分析研究
Investigation of Inclusions on Micro Fracture Mechanisms of High Strengthened Steels;
夹杂物对超高强度钢微观破坏机制的研究
The Analysis to Intensity Breakage of Damping Spring in Train Carriage Pedestal;
火车车箱底座减振弹簧的强度破坏分析
Strength prediction for rock mass based on Barton-Bandis nonlinear failure criterion
基于Barton-Bandis非线性破坏准则的岩体强度预测
Study on the deformation,failure and strength of sandstone with various declined bedding
层理倾角不同的砂岩变形破坏和强度的研究
Research on the Dynamic Strength Failure of Large-span Steel Arch Truss under Severe Earthquakes
强震作用下大跨度拱形立体桁架结构动力强度破坏研究
STRENGTH AND FAILURE CRITERION OF PLAIN HIGH-STRENGTH HIGH-PERFORMANCE CONCRETE UNDER BIAXIAL COMPRESSION SURVIVING HIGH TEMPERATURES
高温后高强高性能混凝土双轴压强度规律与破坏准则
Plain bearings-Metallic multilayer plain bearings-Destructive testing of bond for bearing metals
GB/T12948-1991滑动轴承双金属结合强度破坏性试验方法
Shipbuilding--toughened safety glass panes for ships' side scuttles and ships rectangular windows--punch method of non-destructive strength testing
GB/T3385-1982船用舷窗和矩形窗钢化安全玻璃非破坏性强度试验冲压法
Embedded columns can increase shear strength as well as control of displacement and failure.
配以暗框边柱能提高剪力墙的抗剪强度、位移控制和破坏控制能力。
Microcosmic Numerical Reaserch on the Failure Mode and Strength Property of Intermittent Jointed Rock Mass;
非贯通裂隙岩体破坏模式与强度特性细观数值试验研究
Elastoplastic Seismic Response and Strength Fracture Anaysis of Space Lattice Structures under Multi-Support Excitation;
多点输入下大跨空间网格结构弹塑性地震响应及强度破坏分析
Bioeffects of canine myocardium under microbubble destruction via diversity of ultrasonic intension
不同强度超声破坏微泡对犬心肌组织的生物学效应
Determination of the Shear Strength Parameters of Rock Mass Based on Nonlinear Failure Criterion
基于非线性破坏准则的岩体剪切强度参数确定方法
Change of soil erosion intensity during the course of plant destruction and plant reconstruction in the Loess Plateau
黄土高原植被破坏与重建过程中土壤侵蚀强度变化