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- W2367844764 abstract "In order to predict crack propagation-rate within a quasi-brittle material,the expansion mechanism of a Ⅰ-Ⅱ mixed mode crack in quasi-brittle materials was investigated based on coupling the damage model with fracture mechanics.Due to complexity of calculation and the crack distribution in quasi-brittle materials,the mixed crack was simplified as a 2-D plane problem.Area around the crack tip was divided into four zones according to their deforming characters and the crack propagation was considered equivalent to the branched crack.So,the propagation-rate of the mixed crack was treated as one of the equivalent mode-Ⅰ branch crack.Boundary equations between damage zone and fracture zone were derived to determine the radial sizes of initial damage and fracture zones due to load on the crack.The crack propagation-rate was analyzed with damage model,and a Paris-formula was derived for the crack propagation here.This result manifests its important theoretical significance in predicting crack growth and fatigue life-span in cutting tool material." @default.
- W2367844764 created "2016-06-24" @default.
- W2367844764 creator A5051737868 @default.
- W2367844764 date "2011-01-01" @default.
- W2367844764 modified "2023-09-23" @default.
- W2367844764 title "PREDICTION OF CRACK GROWTH RATE BASED ON COUPLING FRACTURE WITH DAMAGE IN QUASI-BRITTLE MATERIALS" @default.
- W2367844764 hasPublicationYear "2011" @default.
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