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	Analysis of bending and buckling of pre-twisted beams:A bioinspired study
	Zi-Long Zhao ; Hong-Ping Zhao ; Zheng Chang ; Xi-Qiao Feng ; Zi-Long Zhao ; Hong-Ping Zhao ; Zheng Chang ; Xi-Qiao Feng
	2016-03-30 ; 2016-03-30
关键词	Twisting chirality Timoshenko beam Bending Euler buckling Bionics O344.1
其他题名	Analysis of bending and buckling of pre-twisted beams:A bioinspired study
中文摘要	Twisting chirality is widely observed in artificial and natural materials and structures at different length scales.In this paper, we theoretically investigate the effect of twisting chiral morphology on the mechanical properties of elastic beams by using the Timoshenko beam model. Particular attention is paid to the transverse bending and axial buckling of a pre-twisted rectangular beam. The analytical solution is first derived for the deflection of a clamped-free beam under a uniformly or periodically distributed transverse force. The critical buckling condition of the beam subjected to its selfweight and an axial compressive force is further solved. The results show that the twisting morphology can significantly improve the resistance of beams to both transverse bending and axial buckling. This study helps understand some phenomena associated with twisting chirality in nature and provides inspirations for the design of novel devices and structures.; Twisting chirality is widely observed in artificial and natural materials and structures at different length scales.In this paper, we theoretically investigate the effect of twisting chiral morphology on the mechanical properties of elastic beams by using the Timoshenko beam model. Particular attention is paid to the transverse bending and axial buckling of a pre-twisted rectangular beam. The analytical solution is first derived for the deflection of a clamped-free beam under a uniformly or periodically distributed transverse force. The critical buckling condition of the beam subjected to its selfweight and an axial compressive force is further solved. The results show that the twisting morphology can significantly improve the resistance of beams to both transverse bending and axial buckling. This study helps understand some phenomena associated with twisting chirality in nature and provides inspirations for the design of novel devices and structures.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/143797]
专题	清华大学
推荐引用方式 GB/T 7714	Zi-Long Zhao,Hong-Ping Zhao,Zheng Chang,et al. Analysis of bending and buckling of pre-twisted beams:A bioinspired study[J],2016, 2016.
APA	Zi-Long Zhao.,Hong-Ping Zhao.,Zheng Chang.,Xi-Qiao Feng.,Zi-Long Zhao.,...&Xi-Qiao Feng.(2016).Analysis of bending and buckling of pre-twisted beams:A bioinspired study..
MLA	Zi-Long Zhao,et al."Analysis of bending and buckling of pre-twisted beams:A bioinspired study".(2016).

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