Jianzhu Gangjiegou Jinzhan对接焊缝为典型的钢结构焊缝形式，其位置处的裂纹和气孔型缺陷的准确检测对于钢结构维护有着重要的意义，使用磁记忆检测技术对焊缝裂纹和气孔型缺陷进行定位时，传统的零点极值理论由于焊接残余应力的影响，难以区分残余应力、焊接裂纹和气孔型缺陷所产生的磁信号，从而在实际检测中造成缺陷定位的误判和漏判，因此，从焊接裂纹和气孔型缺陷和残余应力所在区域磁信号产生机理的不同入手，开展考虑残余应力影响下的焊接裂纹和气孔型缺陷定位检测研究。首先对焊接残余应力与裂纹和气孔型缺陷产生磁信号的机理进行分析 ...
陈悦, 潘学豪, 邓淋方
doaj
[Finite element analyses of retention of removable partial denture circumferential clasps manufactured by selective laser melting]. [PDF]
Beijing Da Xue Xue Bao Yi Xue Ban, 2022 Ma KN +5 more
europepmc +1 more source
Jianzhu Gangjiegou Jinzhan波纹钢板剪力墙（Corrugated Steel Plate Shear Walls， 简称CSPSW）作为一种新型抗侧力构件，其几何构造在一定程度上起到了加劲肋作用，避免了板面加劲肋的焊接问题。两边连接横向CSPSW通过合理设计可实现先屈服后屈曲，具有两阶段受力特征，可获得较高的初始抗侧刚度和残余水平承载力。采用有限元软件ABAQUS对两边连接横向CSPSW的滞回性能进行系统的参数研究，提出了具有较优残余水平承载力的板型推荐建议。通过对影响CSPSW力学性能的高厚比（H/t）、跨高比（L/H）、波长 ...
蒋琦, 孙国华, 刘文渊
doaj
Jianzhu Gangjiegou Jinzhan, 2002 文章提出用一个平面断裂模型模拟钢结构梁柱连接处翼缘焊缝的断裂行为。模型的公式包括了确定与断裂几何有关的强度系数。考虑了典型的应力状况对支撑的影响。模型还融入了理想的残余应变分布,用来检验它对断裂行为的影响 ...
doaj
[Occurrence pattern of musculoskeletal disorders and its influencing factors among manufacturing workers]. [PDF]
Beijing Da Xue Xue Bao Yi Xue Ban, 2020 Wang FJ +8 more
europepmc +1 more source
[Effect of materials and superstructure designs on the passive fit of implant-supported fixed prostheses]. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2019 Song S, Zheng Z, Yang LY, Gao X.
europepmc +1 more source
[Advances in aquatic bio-inspired medical adhesives]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2019 Wu Y, Li J.
europepmc +1 more source
[Critical roles of matrix metalloproteinases secreted by leukemic cells in the pathogenesis of central nervous system leukemia]. [PDF]
Zhonghua Xue Ye Xue Za Zhi, 2016 Feng SR +5 more
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[Influence of cryogenic treatment and age-hardening heat treatment on the corrosion behavior of a dental casting Ag-Pd alloy]. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2014 Zhao Y, Wu B, Meng Y.
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Immediate implantation of simple taper retentive implants in chronic apical infected teeth in the posterior region: a 5-year clinical observation. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiZhang X +7 more
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