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The application of the Local Approach, a micro-mechanical model of cleavage fracture, has primarily concentrated on the quantification of toughness in homogenous materials. Based on the potential advantages of the approach highlighted in the literature, this project aimed to investigate the applicability of the Local Approach to welded joints and wide plate fracture behaviour. Two modern structural offshore-type steels were investigated and, in order to compare Local Approach fracture toughness and failure predictions, parent material and HAZ (heat affected zone)-notched fracture toughness tests and two wide plate tests were carried out. In most cases predictions of cleavage fracture using the Local Approach showed fair agreement with test results but standard fracture mechanics based assessments of the defects in the two wide plates resulted in conservative predictions of critical defect sizes and maximum allowed loads

Additional information

Authors: IRSID (FR), ;ProfilARBED (FR), ;British Steel plc (GB), ;CLI (FR), ;Instituto de Soldadura e Qualidade (ES), ;Institut fur Eisenhuttenkunde der RWTH (DE), ;The Welding Institute (GB),
Bibliographic Reference: EUR 18649 EN/FR (1998) 376pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-5145-1
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