Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/103134
Title: | Influence of flaw inclination angle and loading condition on crack initiation and propagation | Authors: | Li, Huanqiang Wong, Louis Ngai Yuen |
Keywords: | DRNTU::Engineering::Civil engineering | Issue Date: | 2012 | Source: | Li, H., & Wong, L. N. Y. (2012). Influence of flaw inclination angle and loading condition on crack initiation and propagation. International journal of solids and structures, 49(18), 2482-2499. | Series/Report no.: | International journal of solids and structures | Abstract: | With reference to the experimental observation of crack initiation and propagation from pre-existing flaws in rock specimens under compression, the influences of pre-existing flaw inclination angle on the cracking processes were analyzed by means of finite element method (FEM) and non-linear dynamics method. FEM analysis on the stress field distribution induced by the presence of a pre-existing flaw provided better understanding for the influence of flaw inclination angle on the initiation position and initiation angle of the potential cracks. Numerical analysis based on the non-linear dynamics method was performed to simulate the cracking processes. The resultant crack types, crack initiation sequences and the overall crack pattern were different under different loading conditions. Under a relatively low loading rate or a small magnitude of maximum loading pressure, tensile cracks would tend to initiate prior to shear cracks. In contrast, under a relatively high loading rate and a large magnitude of maximum loading pressure, shear cracks would tend to initiate prior to tensile cracks instead. | URI: | https://hdl.handle.net/10356/103134 http://hdl.handle.net/10220/17697 |
ISSN: | 0020-7683 | DOI: | 10.1016/j.ijsolstr.2012.05.012 | Schools: | School of Civil and Environmental Engineering | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | CEE Journal Articles |
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