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Abstract <p>On the basis of one- and two-parameter failure criteria of mixed mode loading of I+II crack-like defect of adhesive layer, the critical value of J-integral under normal compression is estimated. The additive decomposition of the J-integral into energy densities and consideration of the sign of hydrostatic pressure are assumed to be valid. It is shown that when the critical value of the J-integral of mode II exceeds significantly the critical value of the J-integral at normal rupture, the critical value of the J-integral at normal compression is much inferior to the analogous characteristic at compression.</p>

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On One Estimate of the Critical Value of the J-Integral under Normal Compression Around a Crack-Like Defect in a Thin Adhesive Layer

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • V. V. Glagolev,
  • A. I. Lutkhov

摘要

Abstract

On the basis of one- and two-parameter failure criteria of mixed mode loading of I+II crack-like defect of adhesive layer, the critical value of J-integral under normal compression is estimated. The additive decomposition of the J-integral into energy densities and consideration of the sign of hydrostatic pressure are assumed to be valid. It is shown that when the critical value of the J-integral of mode II exceeds significantly the critical value of the J-integral at normal rupture, the critical value of the J-integral at normal compression is much inferior to the analogous characteristic at compression.