Structural Engineering and Mechanics

  • 제3권5호
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  • Pages.445-462
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  • 1995
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Yield mechanisms of stepped cantilevers subjected to a dynamically applied constant tip force

  • Wang, B. (School of Mechanical and Production Engineering, Nanyang Technological University)
  • 발행 : 1995.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

Previous studies of a stepped cantilever with two straight segments under a suddenly applied constant force (a step load) applied at its tip have shown that the validity of deformation mechanisms is governed by certain geometrical restrictions. Single and double-hinge mechanisms have been proposed and it is shown in this paper that for a stepped cantilever with a stronger tip segment, i.e. $M_{0.1}$ > $M_{0.2}$, where $M_{0.1}$ and $M_{0.2}$ are the dynamic fully plastic bending moments of the tip and root segments, respectively, the family of possible yield mechanisms is expanded by introducing new double and triple-hinge mechanisms. With the aid of these mechanisms, it is shown that all initial deformations can be derived for a stepped cantilever regardless of its geometry and the magnitude of the dynamic force applied.

키워드

참고문헌

  1. Hua, Y.L., Yu, T.X. and Reid, S.R. (1988), "Double-hinge modes in the dynamic response of plastic cantilever beams subjected to step loading", Int. J. Impact Engng., 7, 401-414. https://doi.org/10.1016/0734-743X(88)90004-8
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  6. Reid, S.R., Wang, B. and Hua, Y.L. (1995), "Triple plastic hinge mechanism for a bent cantilever beam subjected to an out-of-plane tip force pulse of finite duration", Int. J. Impact Engng., 16, 75-93. https://doi.org/10.1016/0734-743X(94)00034-T
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