caa a22 4500 388068000 CHVBK 20180307125138.0 cr unu---uuuuu 161130e199912 xx s 000 0 eng 10.1017/S1727719100000447 doi S1727719100000447 pii (NATIONALLICENCE)cambridge-10.1017/S1727719100000447 EndoFEM Studies in the Mode I Stable Crack Growth of Fatigue Precracked CT Specimen [Elektronische Daten] In this paper, the EndoFEM incorporated with a node duplicated and then unloaded crack extension methodology, is employed to produce the CT specimen of A1 2024-T3 with initial fatigue crack and then to simulate its stable crack growth under Mode I condition. Using the experimental P-LLD data, the P-Δa diagram can be estimated by the effective compliance method. This results in a further simulation of crack extending procedures which can obtain the stress-plastic strain distributions of growing crack front and their crack opening profiles, CTOD and CTOA vs. Δa Diagram, COD and COA measured at 5 positions behind the original crack tip vs. Δa diagram. The results mentioned above have excellent agreements with results of related experiments and other computational simulations. In consequence, the paper proposes a single fracture parameter of crack growth which can be casted in the future studies of EndoFEM simulation: (1) Within the crack initiation range whose crack extension rates da/dP has the lowest constant value, the COA measured at 0.5mm behind the original crack tip is takes as 5°; (2) Within the stable crack growth region whose crack extension rates are nonlinearly and monotonically increasing with finite values, the COA measured at 1mm behind the current crack tip is also taken as 5°. Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 1999 Incremental Endochronic plasticity nationallicence EndoFEM nationallicence Mode I stable crack growth nationallicence P vs. LLD nationallicence P vs. Δa nationallicence crack extension methodology nationallicence fracture parameters nationallicence CTOD nationallicence CTOA nationallicence COD nationallicence COA nationallicence Lee C.F. Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C. Lee K.L. Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C. Journal of Mechanics Cambridge University Press 15/4(1999-12), 157-167 1727-7191 15:4<157 1999 15 JOM https://doi.org/10.1017/S1727719100000447 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1727719100000447 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee C.F. Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C NATIONALLICENCE 700 1- Lee K.L. Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C NATIONALLICENCE 773 0- Journal of Mechanics Cambridge University Press 15/4(1999-12), 157-167 1727-7191 15:4<157 1999 15 JOM CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge