Abstract
This paper introduces a procedure to predict failure strain for an arctic class marine structural steel, EH36. Based on previous results,1-4 this paper explains formulation procedure for a failure strain curve of the EH36 in medium-low and high average stress triaxiality zones by performing tensile tests for round and flat specimens with various notches. Verification of the validity of the failure strain envelope using user-defined subroutine imbedded in commercial finite element code Abaqus/Explicit is also described. The failure strain envelope provides relatively accurate simulation results by comparing tensile test results of asymmetric notch structures with fracture simulations using the user-defined subroutine.
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