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Effects of precipitates on fatigue crack growth rate of AA 7055 aluminum alloy CHEN Jun-zhou(陈军洲) 1, ZHEN Liang(甄 良) 2, YANG Shou-jie(杨守杰)1, DAI Sheng-long(戴圣龙)1 1. Beijing Institute...: The effects of precipitates on the fatigue crack growth rate of AA 7055 Al alloy subjected to different ageing treatments were investigated using transmission electron microscope and fatigue crack......
基于Solid Edge的智能化标准件库开发技术研究卢健钊,殷国富,王小虎,徐雷四川大学制造科学与工程学院摘 要:随着国内各行业领域的标准化进程,Solid Edge软件自带的标准件库不能完全满足各领域的需求.针对这一不足,结合知识处理技术,选用Visual Basic 6.0为开发工具,使用Access作为数据库管理工具,论述了一种基于Solid Edge的智能化标准件库的开发方法及流程,并对相关的二次开发技术进行了探讨研究.基于Solid Edge开发的标准件库,不仅在一定程度上提高了交互设计效率,而且为智能CAD技术在各行业领域的应用提供了一条有效的解决思路.关键词:Solid Edge;知识;标准件库;智能化设计;二次开发;......
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Solid Edge工程图模块在机械设计中的使用 邝艺1,柳建安1 (1.中南林学院,湖南,株洲,412006) 摘要:系统介绍了三维CAD软件Solid Edge的工程图模块在机械设计中标注符合机械制图国家标准的剖面线,基准符号,直径和半径尺寸,以及剖视图的方法. 关键词:三维CAD; 工程图; 剖面线; 标准; [全文内容正在添加中] ......
Residual stress relaxation in typical weld joints and its effect on fatigue and crack growth Chunyan JI1,Zhengquan WAN2,Liangbi LI1,Zili WANG1 (1.School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;2.China Ship Scientific Research Center,Wuxi 214082,China) Abstract:Many factors influence the fatigue and crack growth behavior......
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Fracture toughness and fatigue crack growth analysis of 7050-T7451 alloy thick plate with different thicknessesWANG Yi-lin(王艺淋)1, PAN Qing-lin(潘清林)1, 2, WEI Li-li(韦莉莉)1, LI Bo(李波)1, WANG Ying(王迎)1(1... University), Changsha 410083, China)Abstract:The strength, fracture toughness and fatigue crack growth resistance of 7050-T7451 aluminum alloy plate with different thicknesses (35 mm and 160 mm) were......
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Crack Initiation under Cyclic Compression冯美斌,陈新增,何家文摘 要:<正> The crack initiation behaviour under cycliccompression foy the notched specimen wasinvestigated. It has been found that the cyclesfor crack initiation increase with the increaseof compressive mean stress, and the decreaseof stress amplitude. The stress amplitude playsa more important role......