This new ASTM manual introduces the concept of the Master Curve Method so it can be understood and used by engineers who have had limited exposure to elastic-plastic fracture mechanics and/or advanced statistical methods. It addresses the practical design-related problem of defining the ductile-to-brittle fracture transition temperature of structural steels directly in terms of fracture mechanics data.     Topics cover:   • Background and historical aspects  • Data validity requirements imposed on test data, and the number of data required to constitute a statistically useable data set for determining a reference temperature, To   • Test specimens that can be used to develop valid KJc  • Fixturing and test equipment needs  • Preparation of specimens (precracking and side-grooving) for testing  • Test machines, their mode of operation, and recommended specimen loading rates  • All of the information needed to calculate values of KJc  • Scale parameter statistical equations for material testing  • Second option for calculating the To temperature that is useable when KJc data have been generated at various test temperatures  • How the variability of KJc values is handled using the three-parameter Weibull model  • Information on concepts under study  • Brief discussion of important considerations involved in directly applying Master Curve fracture toughness data to the fracture-safety analysis of actual structures

An Introduction to the Development and Use of the Master Curve Method (ASTM Manual) (Astm Manual Series, Mnl 52) PDF

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