"Failure behavior of coated materials" . "Failure behavior of coated materials"@en . . . . "Failure behavior of coated materials"@en . "26210" . . "10 th International Conference on Numerical Methods in Continuum Mechanics" . "3"^^ . "Kn\u00E9sl, Zden\u011Bk" . . "\u017Dilinsk\u00E1 univerzita v \u017Diline" . "Results concerning the influence of a through coating crack on the substrate failure are reported. The problem is studied under the assumptions corresponding to small scale yielding conditions and calculations are performed by the finite element method. An approximate approach based on calculations of crack mouth opening displacement for thin protective layers is suggested. It is concluded that in the case of a stiffer coating on a more compliant substrate, the through coating cracks represent dangerous stress concentrators, and as a consequence of elastic mismatch of both materials, the critical applied stress for substrate failure decreases. Traditional approaches may have underestimated this effect and estimations of the service life of coated structures neglecting this phenomenon could lead to non-conservative values, with unexpected failures."@en . . . . . "RIV/00216305:26210/05:PU65345!RIV07-GA0-26210___" . "2005-08-23+02:00"^^ . "Bare\u0161, Pavel" . "N\u00E1hl\u00EDk, Lubo\u0161" . "47-48" . "Failure behavior of coated materials" . "Lomov\u00E9 chov\u00E1n\u00ED povlakovan\u00FDch materi\u00E1l\u016F"@cs . . . "P(GA101/05/0320)" . . "Lomov\u00E9 chov\u00E1n\u00ED povlakovan\u00FDch materi\u00E1l\u016F"@cs . . "crack mouth opening displacement, crack propagation, bimaterial interface"@en . "[1788351403BD]" . "521344" . "80-969165-4-8" . . . . "Results concerning the influence of a through coating crack on the substrate failure are reported. The problem is studied under the assumptions corresponding to small scale yielding conditions and calculations are performed by the finite element method. An approximate approach based on calculations of crack mouth opening displacement for thin protective layers is suggested. It is concluded that in the case of a stiffer coating on a more compliant substrate, the through coating cracks represent dangerous stress concentrators, and as a consequence of elastic mismatch of both materials, the critical applied stress for substrate failure decreases. Traditional approaches may have underestimated this effect and estimations of the service life of coated structures neglecting this phenomenon could lead to non-conservative values, with unexpected failures." . . . "2"^^ . "RIV/00216305:26210/05:PU65345" . "\u017Dilina" . "3"^^ . "V pr\u00E1ci je vy\u0161et\u0159ov\u00E1n odpor povlakovan\u00FDch sou\u010D\u00E1st\u00ED vzhledem k \u00FAnavov\u00E9mu poru\u0161en\u00ED podkladu. Je zde navr\u017Een zjednodu\u0161en\u00FD p\u0159\u00EDstup, kter\u00FD je zalo\u017Een na otev\u0159en\u00ED trhliny na povrchu sou\u010D\u00E1sti, umo\u017E\u0148uj\u00EDc\u00ED kvantifikovar vliv elastick\u00E9ho mismatch povlakovan\u00FDch sou\u010D\u00E1st\u00ED na prahovou \u00FAnavovou hodnotu nap\u011Bt\u00ED. Je uk\u00E1z\u00E1no, \u017Ee odpor podkladu v\u016F\u010Di \u00FAnavov\u00E9mu po\u0161kozen\u00ED v\u00FDrazn\u011B kles\u00E1 pro tvrd\u00FD povlak na poddajn\u011Bj\u0161\u00EDm podkladu. Tradi\u010Dn\u00ED p\u0159\u00EDstupy mohou podhodnotit tento vliv a zanedb\u00E1n\u00ED t\u00E9to skute\u010Dnosti p\u0159i hodnocen\u00ED zbytkov\u00E9 \u017Eivotnosti povlakovan\u00FDch sou\u010D\u00E1st\u00ED m\u016F\u017Ee v\u00E9st k nekonzervativn\u00EDm hodnot\u00E1m a zp\u016Fsobit tak neo\u010Dek\u00E1vn\u00E9 hav\u00E1rie."@cs . "\u017Dilina" .