Generalized normal-shear damage criterion of bi-material corners

0354547 - ÚFM 2011 US eng O - Ostatní výsledky
Klusák, Jan - Knésl, Zdeněk
Generalized normal-shear damage criterion of bi-material corners.

Grant CEP: GA ČR GA101/08/0994; GA ČR GAP108/10/2049
Výzkumný záměr: CEZ:AV0Z20410507
Klíčová slova: Bi-material notch * crack initiation * combined loading
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

Contrary to a crack in homogeneous material where we can separate normal and shear mode of loading, in the case of bi-material notch the stress distribution exhibit inherently combined mode of loading even for one singularity. These modes are inseparable. Using stability criteria including only normal mode of loading may lead to overestimation of a construction with bi-material notches. The criteria considering both normal and shear loading modes shown in the paper lead to more reliable assessment of general singular stress concentrations.
Trvalý link: http://hdl.handle.net/11104/0193526