crack grow specimen d Figure 4. C specimen 5; 4.2 Predic Predicted c specimen p experiment (approxima condition) also in goo predictive Figure 5. C approach: (a Fig. 6 prov continuum closely to t predicted b information wth rate for due to the d Comparisons ; (b) specime ctions using crack profil photos in F tal results. ately under due to the od agreeme capability o Comparisons a) specimen vides comp m damage m the experim by continu n regarding a crack in a different con (a) of tested sp en 6 g continuum es using co Fig. 5. Obv One can al plane-strai constraint e ent with the of the propo (a) s of tested s 5; (b) specim parisons of mechanics ap mental data. uum damag g crack initia a CT specim nstraint effec pecimen pho m damage m ntinuum da viously, the lso find tha n condition effect. Propa e test durati osed creep-d specimen ph men 6 crack depth pproaches. In addition, e mechanic ation can be 7 men can be c ct of varied tos with pre mechanics amage mech e FE predic at the crack n) than that agation tim ions. These damage mod hotos with p h variations It is clear t , the crack i cs approach e obtained. 1 considerabl d types of sp edictions usin approach hanics appro cted crack k propagates at θ = 90º ( mes predicted e encouragi del presente predictions u s predicted that damage initiation tim h. When C 3th Internation June 1 y lower tha pecimens. (b) ng fracture m oach are com fronts matc s with large (approximat d by the nu ng results p ed in Eqs. (3 (b) using continu by using fr e mechanics mes, nearly *-type met nal Conferenc 16–21, 2013, an in a thum mechanics a mpared wit ch very clo er incremen tely under p umerical sim prove the v 3) and (4). uum damage racture mec s prediction 500 hours, thod is em ce on Fracture Beijing, China mbnail crack approach: (a) h the tested osely to the nt at θ = 0º plane-stress mulation are validity and e mechanics chanics and ns are more can also be mployed, no e a k ) d e º s e d s d e e o
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