caa a22 4500 469125357 CHVBK 20180323133149.0 cr unu---uuuuu 170328e19920401xx s 000 0 eng 10.1007/BF00035109 doi (NATIONALLICENCE)springer-10.1007/BF00035109 Microrotation analysis applied to material cracking and toughness [Elektronische Daten] [C. Wang, Z. Chen] Micro cracking in a solid material is a phenomenon of solid plane bifurcation with incompatible microrotation. Therefore analysis of a microrotation field in a strained material is important in fracture mechanics. Based on the strain-rotation (S-R) decomposition theorem newly developed in non-linear mechanics of finite deformation, a new geometric criterion of cracking: critical value of gradient of local mean rotation at a point i.e. |∇ϑ| is proposed. At the same time, the concept of microrotation toughness is established. The advantage and practical value of the new criterion are elucidated through experimental exemplification in the displacement field within 0.2 mm domain around a crack tip. Microrotation toughness values of marble, structural steel and bronze are estimated also. Kluwer Academic Publishers, 1992 Wang C. Department of Engineering Mechanics, Beijing Graduate School, China University of Mining and Technology, 100083, Beijing, The People's Republic of China aut Chen Z. Department of Engineering Mechanics, Beijing Graduate School, China University of Mining and Technology, 100083, Beijing, The People's Republic of China aut International Journal of Fracture Kluwer Academic Publishers 54/4(1992-04-01), 359-369 0376-9429 54:4<359 1992 54 10704 https://doi.org/10.1007/BF00035109 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00035109 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang C. Department of Engineering Mechanics, Beijing Graduate School, China University of Mining and Technology, 100083, Beijing, The People's Republic of China aut NATIONALLICENCE 700 1- Chen Z. Department of Engineering Mechanics, Beijing Graduate School, China University of Mining and Technology, 100083, Beijing, The People's Republic of China aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 54/4(1992-04-01), 359-369 0376-9429 54:4<359 1992 54 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer