Validity of models and their verification

0381242 - ÚT 2013 RIV AT eng C - Conference Paper (international conference)
Okrouhlík, Miloslav - Kolman, Radek
Validity of models and their verification.
6th European Congress on Computational Methods in Applied Sciences and Engineering. Vienna: Vienna University of Technology, 2012, s. 1-20. ISBN 978-3-9502481-9-7.
[ECCOMAS 2012 /6./. Vienna (AT), 10.09.2012-14.09.2012]
R&D Projects: GA ČR GPP101/10/P376; GA ČR(CZ) GAP101/12/2315
Institutional research plan: CEZ:AV0Z20760514
Keywords : computational mechanics * finite element method * stress wave propagation
Subject RIV: BI - Acoustics

Authors ponder about things that necessarily come into one's mind when the results obtained by theoretical, numerical, finite element method and experimental approaches in continuum mechanics are compared and correlated with a pious wish to ascertain which of them is true or 'truer'. Also the role of singularity appearing in mathematical models describ-ing physical phenomena is discussed. Numerous examples from wave propagation in linear elastic continuum are mentioned, as infinite displacement, strain and stress under the point force in solid continuum mechanics, infinite stress at the crack tip in fracture mechanics, etc.
Permanent Link: http://hdl.handle.net/11104/0211760