Structural Engineering and Mechanics

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Dynamic response of a hinged-free beam subjected to impact at an arbitrary location along its span with shear effect

  • Zhang, Y. (School of Mechanical and Electrical Engineering, Beijing University of Chemical Technology) ;
  • Yang, J.L. (Solid Mechanics Research Center, Beijing University of Aeronautics and Astronautics)
  • Received : 2006.02.15
  • Accepted : 2007.02.15
  • Published : 2007.07.30
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Abstract

In case of considering the shear effect, the complete solutions are obtained for dynamic plastic response of a rigid, perfectly plastic hinged-free beam, of which one end is hinged and the other end free, subjected to a transverse strike by a travelling rigid mass at an arbitrary location along its span. Special attention is paid to new deformation mechanisms due to shear sliding on both sides of the rigid mass and the plastic energy dissipation. The dimensionless numerical results demonstrate that three parameters, i.e., mass ratio, impact position of mass, as well as the non-dimensional fully plastic shear force, have significant influence on the partitioning of dissipated energy and failure mode of the hingedfree beam. The shear effect can never be negligible when the mass ratio is comparatively small and the impact location of mass is close to the hinged end.

Keywords

References

  1. Jones, Norman (1989), Structural Impact, Cambridge UK: Cambridge University Press
  2. Jones, Norman and Song, Boquan (1986), 'Shear and bending response of rigid-plastic beam to partly distributed blast-type loading', J. Struct. Mech., 14(3), 275-320 https://doi.org/10.1080/03601218608907520
  3. Lellep, J. and Tom, K. (2005), 'Shear and bending response of a rigid-plastic beam subjected to impulsive loading', Int. J. Impact Eng., 31(9), 1081-1105 https://doi.org/10.1016/j.ijimpeng.2004.07.008
  4. Li, Q.M. and Jones, N. (1994), 'Blast loading of fully clamped circular plates with transverse shear effects', Int. J. Solids Struct., 31(14), 1861-1876 https://doi.org/10.1016/0020-7683(94)90196-1
  5. Li, Q.M. and Jones, N. (1995), 'Blast loading of a 'short' cylindrical shell with transverse shear effects', Int. J. Impact Eng., 16(2),331-353 https://doi.org/10.1016/0734-743X(94)00044-W
  6. Li, Q.M. and Jones, N. (1999), 'Shear and adiabatic shear failures in an impulsively loaded fully clamped beam', Int. J. Impact Eng., 22(6), 589-607 https://doi.org/10.1016/S0734-743X(99)00013-5
  7. Liu, J.H. and Jones, N. (1987), 'Experimental investigation of clamped beam struck transversely by a mass', Int. J. Impact Eng., 6(4), 303-335 https://doi.org/10.1016/0734-743X(87)90097-2
  8. Liu, J.H. and Jones, N. (1988), 'Dynamic response of a rigid plastic clamped beam struck by a mass at any point on the span', Int. J. Solids Struct., 24(3), 251-270 https://doi.org/10.1016/0020-7683(88)90032-7
  9. Strange, W.J. and Yu, T.X. (1993), Dynamic Models for Structural Plasticity, Springer-Verlag
  10. Tongxi, Yu (1993), 'Shear failure of a cantilever with an attached mass block at the tip under impulsive loading', Explosion Shock Waves (in Chinese), 13(2), 97-104
  11. Yu, T.X. and Chen, F.L. (2000), 'A further study of plastic shear failure of impulsively loaded clamped beams', Int. J. Impact Eng., 24(6-7), 613-629 https://doi.org/10.1016/S0734-743X(99)00038-X
  12. Zhang, Y. and Yang, J.L. (2002), 'Dynamic plastic response of a hinged-free beam subjected to impact at an arbitrary location along its span', Struct. Eng. Mech., 14(5), 611-624 https://doi.org/10.12989/sem.2002.14.5.611