✦ LIBER ✦

A boundary element method for modelling cracks along material interfaces in transient dynamics

✍ Scribed by Tabatabai-Stocker, B. ;Beer, G.

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 226 KB
Volume: 14
Category: Article
ISSN: 1069-8299
DOI: 10.1002/(sici)1099-0887(199804)14:4<355::aid-cnm154>3.0.co;2-1

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✦ Synopsis

For two-dimensional solids the multiregion concept and the time-domain approach in the boundary element method are employed to model cracks in transient dynamics. The propagation of cracks and the closing and opening of crack sides are simulated by disconnecting and connecting degrees of freedom of a stationary mesh, as was also demonstrated recently in statics by Beer. An iterative technique is developed to determine the changes of the extent of the area where there is connection, contact or no contact at the interface between dynamically loaded regions.

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