Quantification of shear damage evolution in aluminium alloy 2024T3

Tang Chak-yin, Fan Jianping, Tsui Chi-pong, Lee Tai-chiu, Chan Luen-chow, Rao Bin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

Shear damage may occur in the process of metal machining such as blanking and cutting, where localized shear deformation is developed. Experimental findings indicate that microscopic shear damage evolution in aluminium alloy 2024T3 (Al 2024T3) is a multi-stage mechanism, including particle cracking, micro-shear banding, matrix microcracking and coalescence of microcracks. This study is an attempt to use a set of equations to describe the multi-stage shear damage evolution in Al 2024T3. The shear damage variables in terms of multi-couple parameters of a power-law hardening material have been defined. An evolution curve of shearing damage has been calculated from experimental data. The values of the shear damage variable at different stages of damage have also been calculated. By making use of the findings, the relation between the microscopic shear damage evolution and the macroscopic shear response of the material has been discussed.
Original languageEnglish
Pages (from-to)57-64
Number of pages8
JournalActa Mechanica Solida Sinica
Volume20
Issue number1
DOIs
Publication statusPublished - 1 Mar 2007

Keywords

  • damage evolution equations
  • hardening material
  • microscopic observation
  • shear band
  • shear damage

ASJC Scopus subject areas

  • Mechanical Engineering
  • Computational Mechanics
  • Mechanics of Materials

Cite this