Numerical Simulation and Experimental Investigation of the Fracture Behaviour of an Electron Beam Welded Steel Joint

Suggests cohesive zone model as the ideal for the prediction of crack propagationConcludes essential infomation for the evaluation of the fracture behaviour of metallic materialsReveals the nature of the fracture mechanism of an electron beam welded joint

Autorentext

Haoyun Tu is an Assistant Professor at the School of Aerospace Engineering and Applied Mechanics, Tongji University, PR China. He received his BE and ME from Northwestern Polytechnical University, China and Dr.-Ing. from University of Stuttgart, Germany. His research interests are on fracture mechanism of metals and welded joints from metals with experimental and finite element methods as well as on characterization techniques such as 3D optical deformation measurement and Synchrotron radiation-computed laminography (SRCL).

Inhalt
Introduction.- Scientific background.- Characterization of steel S355 electron beam welded (EBW) joints.- The Rousselier model.- The Gurson-Tvergaard-Needleman (GTN) model.- The Cohesive zone model.- Optical measurement of crack propagation with the ARAMIS system.- In situ laminography investigation of damage evolution in S355 base material.- Summary and Outlook.