3-D FEM stress analysis and strength evaluation of single-lap adhesive joints subjected to impact tensile loads

3-D FEM stress analysis and strength evaluation of single-lap adhesive joints subjected to impact... The stress wave propagations and interface stress distributions in the single-lap adhesive joint under impact tensile loads are analyzed using the three-dimensional finite element method (3D-FEM) taking into account the strain rate sensitive of the adhesive using Cowper–Symonds constitutive model. It is found that the rupture of the joint initiates near the middle area of the edges of the interfaces along the width direction. In addition, the effects of Young's modulus of the adherend, the overlap length and the thickness of the adhesive layer, and the initial impact velocity of the impacted mass on the stress wave propagations and the interface stress distributions are examined. The characteristics are compared with those of the joint under static loads, which show the different properties. Furthermore, experiments are also carried out for measuring the strain responses and the joint strength. A fairly good agreement is observed between the numerical and the measured results. The strength of the single-lap adhesive joint, which is described using impact energy, is obtained between 5.439 and 5.620 J for the present joint. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Adhesion and Adhesives Elsevier

3-D FEM stress analysis and strength evaluation of single-lap adhesive joints subjected to impact tensile loads

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Publisher
Elsevier
Copyright
Copyright © 2011 Elsevier Ltd
ISSN
0143-7496
D.O.I.
10.1016/j.ijadhadh.2011.06.008
Publisher site
See Article on Publisher Site

Abstract

The stress wave propagations and interface stress distributions in the single-lap adhesive joint under impact tensile loads are analyzed using the three-dimensional finite element method (3D-FEM) taking into account the strain rate sensitive of the adhesive using Cowper–Symonds constitutive model. It is found that the rupture of the joint initiates near the middle area of the edges of the interfaces along the width direction. In addition, the effects of Young's modulus of the adherend, the overlap length and the thickness of the adhesive layer, and the initial impact velocity of the impacted mass on the stress wave propagations and the interface stress distributions are examined. The characteristics are compared with those of the joint under static loads, which show the different properties. Furthermore, experiments are also carried out for measuring the strain responses and the joint strength. A fairly good agreement is observed between the numerical and the measured results. The strength of the single-lap adhesive joint, which is described using impact energy, is obtained between 5.439 and 5.620 J for the present joint.

Journal

International Journal of Adhesion and AdhesivesElsevier

Published: Oct 1, 2011

References

  • Int J Fatigue
    Shenoy, V.; Ashcroft, I.A.; Critchlow, G.W.; Crocombe, A.D.; Abdel Wahab, M.M.
  • Int J Adhes Adhes
    Yu, X.X.; Crocombe, A.D.

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