A refined description of the crack tip stress field in wedge-splitting specimens ? a two-parameter fracture mechanics approach
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F09%3A00332533" target="_blank" >RIV/68081723:_____/09:00332533 - isvavai.cz</a>
Výsledek na webu
—
DOI - Digital Object Identifier
—
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
A refined description of the crack tip stress field in wedge-splitting specimens ? a two-parameter fracture mechanics approach
Popis výsledku v původním jazyce
The paper is focused on a detailed numerical analysis of the stress field in specimens used for the wedge splitting test (WST) which is an alternative to the classical fracture tests (bending, tensile) within the fracture mechanics of quasi-brittle building materials, particularly cementitious composites. The near-crack-tip stress field in the WST specimen is described by means of constraint-based two-parameter fracture mechanics in the paper. Different levels of constraint in the vicinity of the cracktip during fracture process through the specimen ligament are characterized by means of the T-stress. Two basic shapes of WST specimen ? the cube-shaped and the cylinder-shaped one ? are investigated and the determined near-crack-tip stress field parameters are compared to those of compact tension (CT) specimens according to the ASTM standard for classical and round geometry.
Název v anglickém jazyce
A refined description of the crack tip stress field in wedge-splitting specimens ? a two-parameter fracture mechanics approach
Popis výsledku anglicky
The paper is focused on a detailed numerical analysis of the stress field in specimens used for the wedge splitting test (WST) which is an alternative to the classical fracture tests (bending, tensile) within the fracture mechanics of quasi-brittle building materials, particularly cementitious composites. The near-crack-tip stress field in the WST specimen is described by means of constraint-based two-parameter fracture mechanics in the paper. Different levels of constraint in the vicinity of the cracktip during fracture process through the specimen ligament are characterized by means of the T-stress. Two basic shapes of WST specimen ? the cube-shaped and the cylinder-shaped one ? are investigated and the determined near-crack-tip stress field parameters are compared to those of compact tension (CT) specimens according to the ASTM standard for classical and round geometry.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
JL - Únava materiálu a lomová mechanika
OECD FORD obor
—
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2009
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů