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説明:

This study proposes a Mode I double cantilever beam (DCB) test method for debonding thick elastic adhesive layers. The approach integrates Bernoulli-Euler beams connected via spring elements akin to Winkler’s foundation. Energy release rate determination considers crack length correlation with elastic deformation in the crack-front region, accounting for both beam rotation and lateral movement. Evaluation of Ti6Al4V samples bonded with FM 309 adhesive revealed higher initial energy release rates with the conventional beam theory and conservative values with the modified beam theory. The proposed method offered improved consistency, and less conservative energy release rate values compared to the modified theory.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: DCB test, Adhesive layer, Elasticity, Winkler’s foundation, Energy release rate, Bernulli–Euler beam

刊行年月日: 2024-07-20

出版者: Elsevier BV

掲載誌:

• Engineering Fracture Mechanics (ISSN: 00137944) vol. 307 110320

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1016/j.engfracmech.2024.110320

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更新時刻: 2024-11-21 16:30:19 +0900

MDRでの公開時刻: 2024-11-21 16:30:19 +0900