Mechanical Engineering Faculty Research

Title

Numerical Simulation on Nanoparticles Integrated Laser Shock Peening of Aluminum Alloy

Document Type

Conference Proceeding

Publication Date

10-2009

Abstract

In this paper, numerical simulation of nanoparticle integrated laser shock peening of aluminum alloys was carried out. A “tied constraint” was used to connect the matrix and nanoparticle assembly in ABAQUS package. Different particle size and particle volumes fraction (PVF) were studied. It was found that there is significant stress concentration around the nanoparticles. The existence of nanoparticle will influence the stress wave propagation and thus the final stress and strain state of the material after LSP. In addition, particle size, PVF and particle orientation all influence the strain rate, static residual stress, static plastic strain and energy absorption during the LSP process.

Publication Title

ASME 2009 International Manufacturing Science and Engineering Conference

Volume

1

First Page

779

Last Page

786