The development of stress based continuum damage mechanics model for predicting the formability of Magnesium alloys under cold/warm stamping processes

M.S. Mohamed, P. Blackwell

Research output: Contribution to conferencePaper

442 Citations (Scopus)
124 Downloads (Pure)

Abstract

This paper presents the development and application of the novel 2D-stress based continuum damage mechanics (CDM) model for prediction of the formability of magnesium alloys under cold/warm stamping conditions. The CDM model is divided into parts; firstly, a set of uniaxial viscoplastic damage constitutive equations is determined from tensile data. Secondly, a set of multiaxial viscoplastic damage constitutive equations is formulated and calibrated from the forming limit diagram (FLD) data. The experimental uniaxial tensile data for AZ31B magnesium alloy (at different deformation conditions (temperature range of 20°C to 300°C and strain rate range of 0.001 and 0.01s-1) and FLD at the temperature of 250°C were published by Wang et al., [1] and were used to formulate and calibrate the CDM model. A good agreement has been achieved between the experimental and numerical data. Using the newly developed plane-stress unified viscoplastic damage constitutive equations, the FLD of materials can be predicted at different temperatures and strain rates with complex strain path forming conditions.
Original languageEnglish
Pages27-36
Number of pages10
Publication statusPublished - 19 Apr 2016
Event17th International Conference on Applied Mechanics and Mechanical Engineering - Military Technical College, Cairo, Egypt
Duration: 19 Apr 201621 Apr 2016
Conference number: 17th

Conference

Conference17th International Conference on Applied Mechanics and Mechanical Engineering
Abbreviated titleAMME 2016
CountryEgypt
CityCairo
Period19/04/1621/04/16

Keywords

  • Magnesium alloys
  • AZ31B
  • formability
  • forming limit diagram (FLD)
  • continuum damage mechanics (CDM).

Fingerprint Dive into the research topics of 'The development of stress based continuum damage mechanics model for predicting the formability of Magnesium alloys under cold/warm stamping processes'. Together they form a unique fingerprint.

Cite this