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https://scholarbank.nus.edu.sg/handle/10635/66271
Title: | TENSION CRACK DEVELOPMENT IN SOILS. | Authors: | Lee, Fook-Hou Lo, Kwang-Wei Lee, Seng-Lip |
Issue Date: | Aug-1988 | Citation: | Lee, Fook-Hou,Lo, Kwang-Wei,Lee, Seng-Lip (1988-08). TENSION CRACK DEVELOPMENT IN SOILS.. Journal of geotechnical engineering 114 (8) : 915-929. ScholarBank@NUS Repository. | Abstract: | A model is proposed for finite-element modeling of tension crack propagation in soils. The essential features of this model are the splitting of a single node into two distinct nodes in the wake of an advancing crack tip to replicate separation of material on either side of the crack, and the use of a fracture mechanics criterion to predict crack propagation. The material parameter employed in this criterion, the critical energy release rate, is determined experimentally and shown to be reasonably constant over a range of crack lengths, thereby supporting the adoption of this parameter as a material constant for tension cracking in soils. The model is then applied to two classes of problems in which tension cracking is known to exercise significant influence, a stiff embankment on soft soil and an excavated slope. | Source Title: | Journal of geotechnical engineering | URI: | http://scholarbank.nus.edu.sg/handle/10635/66271 | ISSN: | 07339410 |
Appears in Collections: | Staff Publications |
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