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Publications (6/6 displayed)
- 2016Creep age forming of Al-Cu-Li alloy: Application to thick sheet forming of double curvature aircraft panel
- 2014Influence of the edge rounding process on the behaviour of blanked parts: numerical predictions with experimental correlationcitations
- 2014Cold forming by stretching of aeronautic sheet metal partscitations
- 2013Analysis of the blank holder force effect on the preforming process using a simple discrete approachcitations
- 2011Development of a microscopic damage model for low stress triaxialitycitations
- 2011Comprehension of chip formation in laser assisted machiningcitations
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document
Creep age forming of Al-Cu-Li alloy: Application to thick sheet forming of double curvature aircraft panel
Abstract
Creep-age-forming of a thick Al-Cu-Li sheet is studied. An industrial stamping press is used to form a double curvature panel at a reduced scale. This forming, which includes several relaxation steps, is modelled using ABAQUS. A material model describing an elasto-viscoplastic behaviour with anisotropy effect has been identified and implemented in ABAQUS using Fortran subroutine. The numerical model is validated by comparing experiments and numerical results in terms of deformed shapes and an improved forming cycle is suggested.