A cohesive element model for mixed mode loading with frictional contact capability

We present a model that combines interface debonding and frictional contact. The onset of fracture is explicitly modeled using the well-known cohesive approach. Whereas the debonding process is controlled by a new extrinsic traction separation law, which accounts for mode mixity, and yields two separate values for energy dissipation in mode I and mode II loading, the impenetrability condition is enforced with a contact algorithm. We resort to the classical law of unilateral contact and Coulomb friction. The contact algorithm is coupled together to the cohesive approach in order to have a continuous transition from crack nucleation to the pure frictional state after complete decohesion. We validate our model by simulating a shear test on a masonry wallette and by reproducing an experimental test on a masonry wall loaded in compression and shear. Copyright (C) 2012 John Wiley & Sons, Ltd.


Published in:
International Journal For Numerical Methods In Engineering, 93, 5, 510-526
Year:
2013
Publisher:
Hoboken, Wiley-Blackwell
ISSN:
0029-5981
Keywords:
Laboratories:




 Record created 2013-03-28, last modified 2018-03-17


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)