Mechanical Analysis of Shape Memory Alloy Beams under Asymmetric Bending

doi:10.1051/jnwpu/20203840881

IR > 理学院

	Mechanical Analysis of Shape Memory Alloy Beams under Asymmetric Bending
	Yang, Jingning; Wang, Yongxiang; Ma, Liansheng
	2020-08-01
发表期刊	Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
ISSN	10002758
卷号	38 期号:4 页码:881-888
摘要	Based on the bending theory of beams, combining with the constitutive relationship of shape memory alloy materials, the asymmetric bending of shape memory alloy beams under concentrated load was studied. Considering tension-compression asymmetry on both sides of the tension and compression in the process of bending, tension-compression asymmetry coefficient was introduced, by using the step-by-step method. The stress distribution, neutral axis displacement, curvature and phase boundary of the beam sections of the I-shaped cross-section shape memory alloy beam were analyzed. The results show that under the same load, the maximum offset of the neutral axis displacement increases with the increase of tension-compression asymmetry coefficient. Under the same tension-compression asymmetry coefficient, the displacement and curvature of the neutral axis increased with the increase of load; as tension-compression asymmetry coefficient increased, the proportion of mixed phase increased gradually, the proportion of martensite phase decreased, and the asymmetry of phase boundary became more obvious. Under the same conditions, the rectangular section is more suitable. The cross section of I shaped cross section was prone to occur phase transformation. © 2020 Journal of Northwestern Polytechnical University.
关键词	Engineering Asymmetric bending Constitutive relationships Cross section shape Mechanical analysis Rectangular section Step-by-step method Tension and compression Tension-compression asymmetry
DOI	10.1051/jnwpu/20203840881
收录类别	EI
语种	中文
出版者	Northwestern Polytechnical University
EI入藏号	20203909230873
EI主题词	Shape-memory alloy
来源库	Compendex
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114999
专题	理学院
作者单位	School of Science, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Yang, Jingning,Wang, Yongxiang,Ma, Liansheng. Mechanical Analysis of Shape Memory Alloy Beams under Asymmetric Bending[J]. Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University,2020,38(4):881-888.
APA	Yang, Jingning,Wang, Yongxiang,&Ma, Liansheng.(2020).Mechanical Analysis of Shape Memory Alloy Beams under Asymmetric Bending.Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University,38(4),881-888.
MLA	Yang, Jingning,et al."Mechanical Analysis of Shape Memory Alloy Beams under Asymmetric Bending".Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 38.4(2020):881-888.