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Determination of Constraint Limits for Cleavage Initiated Toughness Data by J.A. Joyce; R.L. Tregoning is a Engineering article available to read on EtoBox.

What is Determination of Constraint Limits for Cleavage Initiated Toughness Data about?

The proper constraint limits for cleavage initiated toughness data within the ductile-to-brittle transition regime have been studied extensively using both numerical analysis and analysis of experimental data. Historically, the experimentally based constraint limits have supported less conservative limits. This study conducts analysis of existing and new experimental data developed using data sets targeted to exhibit constraint loss toughness enhancement. Constraint herein is quantified in terms of the scaled specimen deformation level, more commonly known as M. It is expected that data with low M values will exhibit the greatest affect of constraint loss. Large data sets are therefore developed and extracted from the literature that include data with a large range of M levels and at least the required number of uncensored results with M > 30 for valid T 0 measurement as per ASTM E1921-02. Differences in the calculated T 0 values using censoring limits of 5-500 are then determined. The onset of T lim differences due to constraint loss is examined by simply increasing the censoring limit, M lim , utilized in determining the indexing temperature, T lim , and evaluating differences be

Who reads Determination of Constraint Limits for Cleavage Initiated Toughness Data?

Author

J.A. Joyce; R.L. Tregoning

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0013-7944)

Published

2005

Language

EN

Field

Engineering (Physical Sciences)