caa a22 4500 463225821 CHVBK 20180405153226.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10853-006-0702-7 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0702-7 Cone crack initiation induced by contact from cylindrical punch [Elektronische Daten] [Y. Xie, D. Hills, X. Hu] The critical load for cone crack initiation in a brittle material indented by a rigid cylindrical punch is related to the fracture toughness of the material and the punch radius through the classical energy principles. The strain energy required to form an embryo cone crack on a flaw-free surface adjacent to the punch edge is formulated, from which the critical load for cone cracking is then determined. The present analysis shows that the stress singularity close to the sharp contact edge is akin to that a sharp crack tip. The results in this study can be used to set up a simple and practical technique for evaluating some strength-related properties of brittle materials such as the fracture toughness. Springer Science+Business Media, LLC, 2007 Xie Y. Department of Mechanical Engineering, Liaoning University of Petroleum & Chemical Technology, 113001, Fushun, LN, P.R. China aut Hills D. Department of Engineering Science, Oxford University, Parks Road, OX1 3PJ, Oxford, UK aut Hu X. School of Mechanical Engineering, The Western University of Australia, 6009, Perth, WA, Australia aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9469-9475 0022-2461 42:22<9469 2007 42 10853 https://doi.org/10.1007/s10853-006-0702-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0702-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xie Y. Department of Mechanical Engineering, Liaoning University of Petroleum & Chemical Technology, 113001, Fushun, LN, P.R. China aut NATIONALLICENCE 700 1- Hills D. Department of Engineering Science, Oxford University, Parks Road, OX1 3PJ, Oxford, UK aut NATIONALLICENCE 700 1- Hu X. School of Mechanical Engineering, The Western University of Australia, 6009, Perth, WA, Australia aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9469-9475 0022-2461 42:22<9469 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer