Accurate description of near-crack-tip fields for the estimation of inelastic zone extent in quasi-brittle materials

0386365 - ÚFM 2013 RIV CH eng J - Článek v odborném periodiku
Veselý, V. - Sobek, J. - Šestáková, L. - Seitl, Stanislav
Accurate description of near-crack-tip fields for the estimation of inelastic zone extent in quasi-brittle materials.
Key Engineering Materials. 525-526, č. 1 (2013), s. 529-532. ISSN 1013-9826
Grant CEP: GA ČR(CZ) GAP105/11/1551
Institucionální podpora: RVO:68081723
Klíčová slova: crack * near-crack-tip fields * Williams series * quasi-brittle fracture
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

A description of stress and displacement fields by means of the Williams power series using also higher-order terms is the focus of this paper. Coefficients of this series are determined via the over-deterministic method from the results of conventional finite element analysi. A study is conducted into the selection of the FE node set whose results are processed in this regression technique. Coefficients up to the twelfth term were determined with high precision.
Trvalý link: http://hdl.handle.net/11104/0216507