Applied Scientific Research, Section A

, Volume 7, Issue 2–3, pp 100–108 | Cite as

Mechanics of adhesive joints

Part II. Stress distribution in adhesive layer under tensile loading
  • Yonosuke Kobatake
  • Yukihiko Inoue


It is generally believed that when testing the strength of adhesive joints the most serious factor acting to reduce the measured strength is the stress concentration which is apt to occur near the peripheral edges of an adhesive layer under loading. Such an assumption seems, however, to be inadequate as far as the tensile test for a butt joint is concerned. According to our calculation, the validity of whose basis was verified by photoelastic experiments, the intensity of the stress concentration which may occur at the peripheral edges of an adhesive layer should be quite faint. Moreover it was found that though some irregular stress distribution occurs in the neighbourhood of free edges, the remaining region is kept in a state of uniform stress; i.e.,σ 1 =a y = 1F,σ 2 =σ x =vF andτ 12 = (1 -v)F/2, whereF is the mean tensile stress, andv is Poisson’s ratio of the adhesive material.


Stress Distribution Strain Energy Density Adhesive Layer Free Edge Adhesive Joint 
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Copyright information

© Martinus Nijhoff, The Hague/Kluwer Academic Publishers 1958

Authors and Affiliations

  • Yonosuke Kobatake
    • 1
  • Yukihiko Inoue
    • 1
  1. 1.Department of Applied ChemistryTokyo Institute of TechnologyTokyoJapan

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