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|Title:||TENSION CRACK DEVELOPMENT IN SOILS.|
|Authors:||Lee, Fook-Hou |
|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|
|Appears in Collections:||Staff Publications|
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