Energetic versus maximally-dissipative local solutions of a quasi-static rate-independent mixed-mode delamination model

0434934 - ÚT 2015 RIV NL eng J - Journal Article
Vodička, R. - Mantič, V. - Roubíček, Tomáš
Energetic versus maximally-dissipative local solutions of a quasi-static rate-independent mixed-mode delamination model.
Meccanica. Roč. 49, č. 12 (2014), s. 2933-2963. ISSN 0025-6455. E-ISSN 1572-9648
R&D Projects: GA ČR GAP201/10/0357
Institutional support: RVO:61388998
Keywords : adhesive contact * debonding interface fracture * interface damage
Subject RIV: BA - General Mathematics
Impact factor: 1.949, year: 2014
http://link.springer.com/article/10.1007/s11012-014-0045-4?no-access=true

A quasi-static rate-independent model of delamination of linearly elastic bodies at small strains sensitive to mode of delamination is developed with the aim to extract representations typically employed in engineering interface-models, i.e. fracture envelope and fracture energy dependence on the mode mixity. Moreover, two concepts of solutions are implemented: globally stable energy-conserving solutions or stress-driven maximally-dissipative local solutions, arising by the fully implicit or by a semi-implicit timestepping procedures, respectively. Spatial discretization is performed by the symmetric Galerkin boundary-element method (SGBEM). Alternating quadratic programming is implemented.
Permanent Link: http://hdl.handle.net/11104/0239040