Experimental analysis of stress-strain field with stress concentrator using digital image correlation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F16%3A00455947" target="_blank" >RIV/68378297:_____/16:00455947 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/16:00240645

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental analysis of stress-strain field with stress concentrator using digital image correlation

Popis výsledku v původním jazyce

The aim of this work is to develop an experimental methodology based on the Digital Image Correlation (DIC) method for precise full-field in-plane stress-strain analysis in regions containing a stress concentrator. Several techniques and corrections wereproposed and developed improving the conventional DIC and data post-processing to achieve a high degree of accuracy of full-field strain/stress results. It is shown that fracture parameters such as the J-integral can be extracted directly from measuredfields without the need for external FEM simulations. The optical nature of the DIC method also allows simultaneous measurements of CTOD and crack growth. The developed methodology is employed in the field of elastic plastic fracture mechanics to study the fracture behaviour of ductile metals. Two particular experimental studies are carried out in this work. The first fracture test with a non-standard thin-sheet specimen made of aluminium alloy addresses the known problem of the differen

Název v anglickém jazyce

Experimental analysis of stress-strain field with stress concentrator using digital image correlation

Popis výsledku anglicky

The aim of this work is to develop an experimental methodology based on the Digital Image Correlation (DIC) method for precise full-field in-plane stress-strain analysis in regions containing a stress concentrator. Several techniques and corrections wereproposed and developed improving the conventional DIC and data post-processing to achieve a high degree of accuracy of full-field strain/stress results. It is shown that fracture parameters such as the J-integral can be extracted directly from measuredfields without the need for external FEM simulations. The optical nature of the DIC method also allows simultaneous measurements of CTOD and crack growth. The developed methodology is employed in the field of elastic plastic fracture mechanics to study the fracture behaviour of ductile metals. Two particular experimental studies are carried out in this work. The first fracture test with a non-standard thin-sheet specimen made of aluminium alloy addresses the known problem of the differen

Druh

B - Odborná kniha

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

978-80-01-05890-9

Počet stran knihy

104

Název nakladatele

ČVUT v Praze, Fakulta stavební

Místo vydání

Praha

Kód UT WoS knihy

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