![]() ![]() Also, there is no open source software currently available to perform such analysis.The authors developed an open source automated J-R curve-analysis software based on the normalization method in ASTM E1820-18. Despite the advantage in testing, analysis procedures for the normalization method are very complicated. This method does not require compliance measurements during testing, significantly simplifying J-R curve testing compared with the conventional elastic unloading compliance (EUC) method. A widely accepted practice for conducting J-R curve testing is ASTM standard E1820, which introduces the normalization method. ![]() The J-integral versus crack-growth resistance curve (J-R curve) is a useful tool for evaluating material fracture toughness in the ductile region.
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