The effect of heat treatment on elastic-plastic behavior and absorbing energy for L-shaped mild steel under compressive axial load

Abstract EN

The paper deals with the experimental investigation to crushing collapse behaviour of thin-walled mild steel L-shaped structural under compressive axial load.

The aim of this paper is to show that the increase of plastic region will be on the account of elastic region for L-steel plates under compressive axial load by using heat treatment (Tempering).

The result has shown a decrease in elastic region with an increase in plastic region during crushing L- steel plates which caused an increase in absorbing energy.

Details of the deformation processes were examined by using theoretical, experimental and three-dimensional finite element models.

The effect of heat treatment processes were presented to increase plastic region with absorbing energy during crushing plates, Heat treatment is a very useful process to improve absorbing energy with decreasing size of plates.

Static load-deformation curves were compared with those obtained from theoretical model based on perfect plasticity and finite element simulations using nonlinear ANSYS program and obtained by quasi-static tests.

Conclusions have been given concerning the agreement between the results of finite element simulations and the static once.