STRESS-STRAIN MODEL FOR AUSTENITIC STAINLESS STEEL AFTER FIRE EXPOSURE

摘要

An experimental research has recently been conducted to investigate the mechanical properties of austenitic stainless steel after heating and cooling down to room temperature.A simplified stress-strain model is proposed accordingly to consider the influence of fire damage.This model is a revised version of Rasmussen's stress-strain model for stainless steel at ambient temperature.The accuracy of the proposed model was validated by comparing with the test results.