PARKES REVISITED - EFFECT OF ELASTIC-DEFORMATION AT THE ROOT OF A   CANTILEVER BEAM

doi:10.1016/0734-743X(91)90006-2

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	PARKES REVISITED - EFFECT OF ELASTIC-DEFORMATION AT THE ROOT OF A CANTILEVER BEAM
	WANG, XD ; YU, TX
刊名	国际冲击工程杂志
	1991
DOI	10.1016/0734-743X(91)90006-2
英文摘要	Parkes' problem is re-analysed by setting an elastic-plastic rotational spring at the root of the cantilever beam, instead of the usual fully clamped constraint there. The cantilever beam is still assumed to be rigid-plastic, but the spring-beam system has a certain capacity for storing elastic deformation energy. The present analysis indicates that after the beam is struck by a rigid mass at its tip, the response of the system could be one of the following three modes: (i) mode I, a plastic hinge travels from the tip to the root, but before it reaches the root, the root spring enters into its plastic state and creates a new hinge there. After the travelling hinge reaches the root, it becomes the only plastic hinge and absorbs the remaining kinetic energy, so this mode is similar to Parkes' rigid-plastic solution; (ii) mode II(a), the travelling hinge disappears at an internal point of the beam, and only elastic deformation takes place thereafter; and (iii) mode II(b), the travelling hinge disappears at an internal point at the beam, but the remaining kinetic energy still results in a plastic hinge at the root. It is confirmed that the ratio of the energy that can be stored in the system to the input energy has a dominant effect on the response modes, whilst the mass ratio has a dominant effect on the proportion of the input energy dissipated plastically in the travelling hinge stage.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1991FX75300006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Mechanical; Mechanics; SCI(E); EI; 8; ARTICLE; 2; 197-209; 11
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/316287]
专题	工学院
推荐引用方式 GB/T 7714	WANG, XD,YU, TX. PARKES REVISITED - EFFECT OF ELASTIC-DEFORMATION AT THE ROOT OF A CANTILEVER BEAM[J]. 国际冲击工程杂志,1991.
APA	WANG, XD,&YU, TX.(1991).PARKES REVISITED - EFFECT OF ELASTIC-DEFORMATION AT THE ROOT OF A CANTILEVER BEAM.国际冲击工程杂志.
MLA	WANG, XD,et al."PARKES REVISITED - EFFECT OF ELASTIC-DEFORMATION AT THE ROOT OF A CANTILEVER BEAM".国际冲击工程杂志 (1991).