caa a22 4500 469125470 CHVBK 20180323133149.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF00028917 doi (NATIONALLICENCE)springer-10.1007/BF00028917 HRR fields for damaged materials [Elektronische Daten] [J. Wang, C. Chow] The paper presents an investigation of the interaction between a macroscopic crack and distributed damage in an elastic-plastic material based on the HRR field model for virgin materials. This is achieved by describing the mechanical effects of the distributed micro-cracks in terms of the damage variable D on the HRR fields. Damage evolution equation and the constitutive equations coupled with damage are formulated and the resulting boundary value problems are solved numerically. Material constants μ, n and m 0are varied to examine their effects on the resulting stress distributions. It is found that the HRR fields for damaged and virgin materials are surprisingly similar although the severity of damage equivalent stress is of several orders of magnitude higher than the conventional plastic equivalent stress without damage consideration. Furthermore, it is shown theoretically and justified numerically that the J-integral loses its path independency for damaged materials, causing the amplitude of the singularity K D to remain an unknown variable in the asymptotic analysis. Kluwer Academic Publishers, 1992 Wang J. Department of Mechanics, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China aut Chow C. Mechanical Engineering, Southern Illinois University at Edwardsville, 62026-1805, Edwardsville, Illinois, USA aut International Journal of Fracture Kluwer Academic Publishers 54/2(1992-03-01), 165-183 0376-9429 54:2<165 1992 54 10704 https://doi.org/10.1007/BF00028917 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00028917 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang J. Department of Mechanics, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China aut NATIONALLICENCE 700 1- Chow C. Mechanical Engineering, Southern Illinois University at Edwardsville, 62026-1805, Edwardsville, Illinois, USA aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 54/2(1992-03-01), 165-183 0376-9429 54:2<165 1992 54 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer