A NODE RELEASE APPROACH TO CALIBRATE COHESIVE PROPERTIES FOR FRACTURE SPECIMENS AND WELDED PLATE CONNECTIONS

Calibration of the cohesive zone models reqires determination of a number of critical parameters in the traction-separateion law. This paper introduces an approach to determine the traction-separation law, namely the Park-Paulino-Roesler model, through the node-release analysis implemented in the finite element research code WARP3D. The validation of the proposed approach utilizes results from the single-edge-notched bend, SE(B), specimens with varying levels of crack-front constraints and welded plate specimens.
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