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Stress-driven local-solution approach to quasistatic brittle delamination
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SYSNO ASEP 0456076 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Stress-driven local-solution approach to quasistatic brittle delamination Author(s) Roubíček, Tomáš (UT-L) RID, ORCID
Thomas, M. (DE)
Panagiotopoulos, Ch. (ES)Number of authors 3 Source Title Nonlinear Analysis: Real World Applications. - : Elsevier - ISSN 1468-1218
Roč. 22, April (2015), s. 645-663Number of pages 19 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords unilateral adhesive contact ; brittle limit ; rate-independent processes Subject RIV BA - General Mathematics R&D Projects GAP201/10/0357 GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 UT WOS 000346545700045 EID SCOPUS 84918804584 DOI 10.1016/j.nonrwa.2014.09.011 Annotation A unilateral contact problem between elastic bodies at small strains glued by a brittle adhesive is addressed in the quasistatic rate-independent setting. The delamination process is modeled as governed by stresses rather than by energies. This leads to a specific scaling of an approximating elastic adhesive contact problem, discretized by a semi-implicit scheme and regularized by a BV-type gradient term. An analytical zero-dimensional example motivates the model and a specific local-solution concept. Two-dimensional numerical simulations performed on an engineering benchmark problem of debonding a fiber in an elastic matrix further illustrate the validity of the model, convergence, and algorithmical efficiency even for very rigid adhesives with high elastic moduli. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2016 Electronic address http://ac.els-cdn.com/S1468121814001242/1-s2.0-S1468121814001242-main.pdf?_tid=858ed642-d4c1-11e5-95d4-00000aacb35d&acdnat=1455636514_256ad6f368e89062d783bce2ac1f9a02
Number of the records: 1