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- W2367009115 abstract "By using the bar bar tensile impact apparatus, a test method for studying dynamic fracture initiation toughness of elastic plastic materials was proposed based on the one dimensional test principle. The specimen is a circumferentially notched short cylinder. The materials exhibit the elastic plastic behavior at the crack tip. Through the analysis of the conversion relation between the work and energy of a fracture specimen, the dynamic J integral is adopted as a characteristic parameter for elastic plastic materials under impact loading. The J integral is calculated from -Δ and -δ curves by using the formula proposed by J.R.Rice. The J integral at fracture initiation is employed to describe the dynamic fracture initiation toughness of elastic plastic materials and the experimental results indicate that J ID can be regarded as a material constant. The testing results show that the methods are feasible and effective." @default.
- W2367009115 created "2016-06-24" @default.
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- W2367009115 date "2003-01-01" @default.
- W2367009115 modified "2023-09-24" @default.
- W2367009115 title "Experimental Study for Measuring Dynamic Fracture-Initiation Toughness under Different Stress State" @default.
- W2367009115 hasPublicationYear "2003" @default.
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