Calculation of bearing loads for fractured specimens by FRASTA simulation

摘要

Based on the previously proposed simple bar hypothesis,the fracture surfaces can be assumed to be composed of independent rectangular bars.In this paper,by dividing the plastic deformation into single bars,the original lengths of these bars were deduced and then the global strains of these bars during the course of failure were calculated.According to the relationship between true stress and true strain of the material,the normal stress on the cross section of each bar was determined.Multiply the stress with the cross section area,the load acted on each single bar was obtained.Adding all loads on all bars together led to the total applied load of the specimen.