Evaluation of local strength of welding joint by using double holes micro shear test

	Evaluation of local strength of welding joint by using double holes micro shear test
	Cai, Shujuan; Zhu, Liang; Zhang, Zhongfa
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2016-04-25
卷号	37 期号:4 页码:43-46
关键词	Shear stress Strain hardening Strength of materials Stress-strain curves Tensile testing Welded steel structures Welding Welds Yield stress Deformation properties Experimental curves Finite element computations Finite element simulations Load-displacement curve Local mechanical properties Shear tests Work hardening exponent
ISSN号	0253360X
英文摘要	A new approach, double holes micro shear test, is presented for determining the localplastic deformation properties in welded joints. A device for measuring the local mechanical properties of materials is developed and the micro shear test of the welded joint is carried out. The response between applied load and indentor displacement is recoroled. shear stress-strain curve. the finite element model of double hole micro-shear test is established. The finite element computation were carried out for various combination of yield stress and work hardening exponent. The equations were constructed to material strength properties and load-displacement curves from double holes micro-shear tests. The accuracy of this equations method is validated by tensile test. The results show that the material strength properties can be obtained directly from the experimental curves with double hole micro-shear test. The local distortion properties in X70 pipeline steel welded joints were evaluated by double holes micro shear test. © 2016, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112504]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Cai, Shujuan,Zhu, Liang,Zhang, Zhongfa. Evaluation of local strength of welding joint by using double holes micro shear test[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2016,37(4):43-46.
APA	Cai, Shujuan,Zhu, Liang,&Zhang, Zhongfa.(2016).Evaluation of local strength of welding joint by using double holes micro shear test.Hanjie Xuebao/Transactions of the China Welding Institution,37(4),43-46.
MLA	Cai, Shujuan,et al."Evaluation of local strength of welding joint by using double holes micro shear test".Hanjie Xuebao/Transactions of the China Welding Institution 37.4(2016):43-46.