Results 71 to 80 of about 206 (115)
A Review on Reductions in the Stress-Intensity Factor of Cracked Plates Using Bonded Composite Patches. [PDF]
Materials (Basel), 2022 Aabid A, Hrairi M, Ali JSM, Sebaey TA.
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Finite Element Simulation of a Crack Growth in the Presence of a Hole in the Vicinity of the Crack Trajectory. [PDF]
Materials (Basel), 2022 Alshoaibi AM, Fageehi YA.
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Crack path determination for non-proportional mixed-mode fatigue
, 2009 The objective of this work is to study crack path deflection under proportional and non-proportional mixed-mode fatigue and predict crack branching direction based on linear elastic fracture mechanics (LEFM) driving forces.
Highsmith, Shelby, Jr.
core
Research on the Initiation and Propagation Modes of 3-D Crack Under Hydro-mechanical Coupling
工程科学与技术, 2018 It is easy for the cracks in rock masses to propagate and coalesce under the combination of high ground stress and seepage pressure, which leads to the failure of rock masses.
Lei YANG +7 more
doaj
Simulation of fatigue crack propagation in the wing main spar flange
Simulation of fatigue crack growth in the bottom flange of twin turboprop commuter aircraft wing spar is described in this paper. Analysed crack propagation scenario represents real wing full-scale fatigue test failure.
Augustin, Petr
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Q355B钢对接接头气孔缺陷对疲劳寿命影响的试验研究与数值模拟
Jianzhu Gangjiegou Jinzhan焊接过程常伴随着气孔、夹渣、咬边等缺陷的产生，这些缺陷在疲劳荷载作用下容易导致疲劳裂纹的产生和扩展。使用有限元软件ABAQUS结合断裂力学分析软件Franc3D，建立含气孔缺陷的对接接头有限元模型，并在应力集中最大值处植入裂纹，依据断裂力学M积分对含裂纹的模型进行数值模拟，得到了不同初始裂纹长度和焊缝宽度下裂纹尖端的应力强度因子。分析结果显示，裂纹尖端的应力强度因子对初始裂纹长度变化敏感，随长度增加而增加，而裂纹两端的应力强度因子则呈相反趋势；增加焊缝宽度可以显著降低应力强度因子，随着焊缝宽度的增加 ...
熊海江 +4 more
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Modeling the Pre-Existing Cracks at the Base of High Mast Illumination Poles
, 2018 The High Mast Illumination poles (HMIPs) in Texas are subjected to galvanization induced cracks at the shaft to base plate connection. The major load that HMIPs experience over the entire design life is the wind induced fatigue load.
Mohammed, Zeeshan Akther
core
Jianzhu Gangjiegou Jinzhan轮载下正交异性钢桥面板的局部效应显著，相邻各疲劳易损细节的疲劳行为相互影响，特别是随着某个细节裂纹扩展，相邻细节疲劳应力可能增大，桥面板疲劳性能呈加速劣化趋势。疲劳应力响应及桥面板性能劣化评估已成为钢桥面板运营期面临的挑战和亟待进行的工作。为合理评估开裂正交异性钢桥面板的疲劳性能演化情况，基于既有足尺模型疲劳试验，综合采用有限元程序ANSYS和Franc3D的多尺度交互技术模拟钢桥面板典型疲劳易损细节裂纹扩展行为，探究裂纹扩展过程中各关键细节（顶板与U肋连接焊缝、U肋与横隔板连接焊缝、横隔板开孔处 ...
叶华文 +4 more
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, 2020 thesisFatigue cracks can be successfully modeled with three-dimensional finite-element (FE) models using FRANC3D. These models are useful in calculating stress intensity factor (SIF) histories that subsequently can be used to integrate crack-growth rate ...
Carlson, Keven
core
Experimental and numerical investigation of the fatigue behaviour and crack evolution mechanism of granite under ultra-high-frequency loading. [PDF]
R Soc Open Sci, 2020 Zhou Y, Zhao D, Tang Q, Wang M.
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