Experimental-Computational analysis of Cohesion Tests

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F02%3APU34458" target="_blank" >RIV/00216305:26210/02:PU34458 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Experimental-Computational analysis of Cohesion Tests
Original language description
The paper compares various types of cohesion tests used in testing of adhesive connection of two materials. The computational modelling using FEM confirms that all the usual or normalized cohesion strength tests result in a pronounced stress concentration in some part of the contact surface of both materials. This concentration disables any evaluation of limit values of quantities crucial for decohesion of the materials and the tests differing in a single geometric parameter of the test sample cannott be compared. The authors suggest torsion tests as more convenient for cohesion strength tests. The computational simulation of the test using hyperelastic FEA showed, that no stress concentration occurs in this type of test and the stress state is homogeneous on all the contact surface. This fact enables a simple evaluation of shear stress in the test. The evaluated limit shear stress should be the material characteristic of the cohesion strength. Some few examples were realized to verify
Czech name
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Czech description
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Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Inženýrská mechanika 2002 Engineering Mechanics 2002
ISBN
80-214-2109-6
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
13-14
Publisher name
Institute of Mechanics of Solids Faculty of Mechanical Engineering Brno University of Technology
Place of publication
Svratka, ČR
Event location
Svratka
Event date
May 13, 2002
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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