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

作者：Zhang Y^*; Yang J L

来源：Structural Engineering and Mechanics, 2007, 26(5): 483-498.

• hinged-free beam
• impact
• plastic dissipated energy
• deformation mechanism
• complete solution

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 hinged-free 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.

• 出版日期2007-7-30
• 单位北京航空航天大学; 北京化工大学