Detail publikace

Experimental - computational modelling of adhesion strength in composite materials

JANÍČEK, P., BURŠA, J.

Originální název

Experimental - computational modelling of adhesion strength in composite materials

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Standardized tests for adhesion testing evaluate e.g. the pull - out force that enables us to compare adhesion strength of various materials. The results of tests are valid for the same sample shapes and dimensions only; the tests, where one of the geometric parameters of the sample differs, cannot be compared in this way. The results of these tests cannot be transformed into an adhesion strength that should be used as a limit value in computational modelling and in evaluation of damage risk. This limited scope of application is conditioned by stress concentration in the sample. Therefore, computational modelling was used to find another type of test which does not show any stress concentration on the material interface or which finally gives a uniform stress distribution in the whole contact surface. The computational modelling was realized for steel fibre in rubber matrix, i.e. materials showing a mismatch in moduli of elasticity on five orders. The Mooney Rivlin material model was used for modelling the hyper-elastic behaviour of rubber. The most uniform stress distribution was found in some types of torsion tests. The results of these tests, realized experimentally with a different type of material combination, show a considerably low dependence of the adhesion strength, defined as the mean shear stress in the material interface before fracture, on the sample dimensions. The dependence of the adhesion strength on normal stress in the contact area was solved by means of computational experimental modelling.

Klíčová slova v angličtině

Adhesion strength testing, composite material, computational modelling,

Autoři

JANÍČEK, P., BURŠA, J.

Rok RIV

2002

Vydáno

15. 10. 2002

Nakladatel

Witpress, southampton, boston

Místo

Kihei, USA

ISBN

1-85312-926-7

Kniha

Seventh International Conference Damage and Fracture Mechanics VII

Strany od

403

Strany do

411

Strany počet

9

BibTex

@inproceedings{BUT10670,
  author="Přemysl {Janíček} and Jiří {Burša}",
  title="Experimental - computational modelling of adhesion strength in composite materials",
  booktitle="Seventh International Conference Damage and Fracture Mechanics VII",
  year="2002",
  pages="9",
  publisher="Witpress, southampton, boston",
  address="Kihei, USA",
  isbn="1-85312-926-7"
}