Accurate dynamic analysis of functionally graded beams under a moving point load

Affiliation of Author(s):航空学院

Journal:Mech. Based Des. Struct. Mach.

Abstract:Based on the physical neutral surface, an N-node novel weak form quadrature beam element is proposed and the explicit formulas for computing the stiffness and mass matrices are given. The proposed element is then used to analyze the dynamic behavior of the functionally graded material (FGM) beams under a moving point load. Both elasticity modulus and mass density vary exponentially across the thickness. Investigations show that the maximum dynamic magnification factors are independent of the power-law exponent k at a fixed nondimensional parameter α. This finding may be useful in design and engineering applications. © 2017 Taylor & Francis.

ISSN No.:1539-7734

Translation or Not:no

Date of Publication:2017-01-02

Co-author:Liang, Xiaoyu,Jin, Chunhua

Correspondence Author:wzw

Date of Publication:2017-01-02