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R-Curve Modelling with Constraint Effect
Last modified: 2013-05-03
Abstract
A method for constructing R-curve has been developed. Three
constraint theories (T-stress, Q-stress and A2) have been used to construct
constraint-dependent R-curves. The predicted R-curves have been compared
against test results taken from published literature. A comparison of the predicted
constraint based R-curves against the testing result was given. It is shown that the
developed method provides an efficient approach to obtain R-curves under low
constraint and can potentially be used for engineering critical assessment (ECA)
in various industry sectors
constraint theories (T-stress, Q-stress and A2) have been used to construct
constraint-dependent R-curves. The predicted R-curves have been compared
against test results taken from published literature. A comparison of the predicted
constraint based R-curves against the testing result was given. It is shown that the
developed method provides an efficient approach to obtain R-curves under low
constraint and can potentially be used for engineering critical assessment (ECA)
in various industry sectors
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