Exact solutions for postbuckling of a graded porous beam

doi:10.1088/1757-899X/372/1/012027

CORC > 兰州理工大学 > 兰州理工大学

	Exact solutions for postbuckling of a graded porous beam
	Ma, L. S.; Ou, Z. Y.
	2018
卷号	372
DOI	10.1088/1757-899X/372/1/012027
英文摘要	An exact, closed-form solution for the postbuckling responses of graded porous beams subjected to axially loading is obtained. It was assumed that the properties of the graded porous materials vary continuously through thickness of the beams, the equations governing the axial and transverse deformations are derived based on the classical beam theory and the physical neutral surface concept. The two equations are reduced to a single nonlinear fourth-order integral-differential equation governing the transverse deformations. The nonlinear equation is directly solved without any use of approximation and a closed-form solution for postbuckled deformation is obtained as a function of the applied load. The exact solutions explicitly describe the nonlinear equilibrium paths of the buckled beam and thus are able to provide insight into deformation problems. Based on the exact solutions obtained herein, the effects of various factors such as porosity distribution pattern, porosity coefficient and boundary conditions on postbuckling behavior of graded porous beams have been investigated.
会议录	2018 INTERNATIONAL CONFERENCE ON MATERIAL STRENGTH AND APPLIED MECHANICS (MSAM 2018)
会议录出版者	IOP PUBLISHING LTD
会议录出版地	DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
语种	英语
资助项目	National Natural Science Foundation of China[11472123] ; Open Projects of State Key Laboratory for Strength and Vibration of Mechanical Structures at Xi'an Jiaotong University[SV2014-KF-04]
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000437171900027
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36163]
专题	兰州理工大学
通讯作者	Ma, L. S.
作者单位	Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Ma, L. S.,Ou, Z. Y.. Exact solutions for postbuckling of a graded porous beam[C]. 见:.