Advances in Computational Design

Volume 5, Number 4, 2020, pages 349-362

DOI: 10.12989/acd.2020.5.4.349

A review of numerical approach for dynamic response of strain gradient metal foam shells under constant velocity moving loads

Raad M. Fenjan , Ridha A. Ahmed , Luay Badr Hamad , Nadhim M. Faleh

Abstract

Key Words

Dynamic characteristics of a scale-dependent porous metal foam cylindrical shell under a traveling load have been explored within this article based on a numerical approach. Within the material texture of the metal foams, uniform and non-uniform porosities may be dispersed. Based upon differential quadrature method (DQM) and Laplace transforms, the equations of motion for a shear deformable scale-dependent shell may be solved numerically. Scale-dependent shell modeling has been provided based upon strain gradient elasticity. Solving the equations will give the shell deflection as a function of load speed. Also, it is reported that shell deflection relies on the porosity dispersion and strain gradient influences.

Address

• Raad M. Fenjan, Ridha A. Ahmed, Luay Badr Hamad, Nadhim M. Faleh — Al-Mustansiriah University, Engineering Collage P.O. Box 46049, Bab-Muadum, Baghdad 10001, Iraq