Finite Element Simulation of Fatigue Damage Accumulation for Repaired Component by Cold Expansion Method

This paper presents a numerical investigation about the influence of mandrel shape on residual stresses induced by the cold expansion procedure. Thus, ball and tapered pin are used for cold expanding the plate. As, the entrance face presents the lowest residual stresses throughout the hole thickness, we propose to solve this problem by varying the mandrel taper degree, instead of applying a double expansion. The obtained results show that the tapered pin is more suitable for the cold expansion. More, low taper increases the residual stresses at the entrance, reaching the values generated at the exit face.

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Numerical Analysis and Optimization of the Residual Stresses Distribution Induced by Cold Expansion Technique

Baltach

Djebli

Bendouba

et al. 2018

Frattura Ed Integrità Strutturale

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Finite Element Simulation of Fatigue Damage Accumulation for Repaired Component by Cold Expansion Method

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References 18 publications

Numerical Analysis and Optimization of the Residual Stresses Distribution Induced by Cold Expansion Technique

Numerical Analysis and Optimization of the Residual Stresses Distribution Induced by Cold Expansion Technique

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