About: The theoretical strength of fcc crystals under multiaxial loading

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Atomistic modeling of a special triaxial loading of six perfect fcc crystals is performed by means of pseudopotential density functional method. The triaxial stress state is simulated as a superposition of axial pressure and transverse biaxial stresses. The transverse stresses are treated as adjustable parameters and their influence on the theoretical compressive strength is evaluated for the <100> and the <111> crystallographic orientations of the loading axis. The obtained results revealed that the compressive strengths are increasing linear functions of the transverse compressive stresses. On the other hand, the tensile transverse stresses lower the compressive strength. This implies that the compressive strengths of individual crystals approach a zero value when some critical (characteristic) levels of tensile biaxial stresses are reached. These stresses are then considered to be the theoretical tensile biaxial strengths. Atomistic modeling of a special triaxial loading of six perfect fcc crystals is performed by means of pseudopotential density functional method. The triaxial stress state is simulated as a superposition of axial pressure and transverse biaxial stresses. The transverse stresses are treated as adjustable parameters and their influence on the theoretical compressive strength is evaluated for the <100> and the <111> crystallographic orientations of the loading axis. The obtained results revealed that the compressive strengths are increasing linear functions of the transverse compressive stresses. On the other hand, the tensile transverse stresses lower the compressive strength. This implies that the compressive strengths of individual crystals approach a zero value when some critical (characteristic) levels of tensile biaxial stresses are reached. These stresses are then considered to be the theoretical tensile biaxial strengths. (en)
Title	The theoretical strength of fcc crystals under multiaxial loading The theoretical strength of fcc crystals under multiaxial loading (en)
skos:prefLabel	The theoretical strength of fcc crystals under multiaxial loading The theoretical strength of fcc crystals under multiaxial loading (en)
skos:notation	RIV/00216305:26210/11:PU91471!RIV12-GA0-26210___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA106/09/1524)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Černý, Miroslav Pokluda, Jaroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	235108
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/11:PU91471
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ideal compressive strength, stress superposition, fcc metals, ab initio calculations (en)
http://linked.open.../riv/klicoveSlovo	ab initio calculations fcc metals ideal compressive strength stress superposition
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[4B206AA1EF9C]
http://linked.open...i/riv/nazevZdroje	COMPUTATIONAL MATERIALS SCIENCE
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	First-principles study of mechanical properties of ideal metallic fiber nano-composites
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	50
http://linked.open...iv/tvurceVysledku	Pokluda, Jaroslav Černý, Miroslav
http://linked.open...ain/vavai/riv/wos	000290650200037
issn	0927-0256
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	26210

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