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TWI Industrial Member Report Summary 513/1995
C S Wiesner
Background
The 'Local Approach' is a micro-mechanical failure model in which cleavage fracture is predicted to take place when a critical stress state is reached in the region of interest. The method has been shown to be a powerful tool to predict cleavage fracture for a wide range of configurations, including the effect of constraint, etc. One area which has been identified as needing further attention is the question of whether the 'Local Approach' parameters, m and