Adhesive strength evaluation for three-dimensional butt joint in terms of the intensity of singular stress field on the interface outer edge. (April 2020)

• Record Type: Journal Article
• Authors: Ren, Fei; Noda, Nao-Aki
• Is Part Of: International journal of adhesion & adhesives. Volume 98(2020)
• Publication Date: 2020-04
• Subjects: Interfaces -- Finite element stress analysis -- Joint design -- Fracture mechanics -- Intensity of singular stress field; Adhesion -- Periodicals; Adhesives -- Periodicals; Adhésion (Physique) -- Périodiques; Adhésifs -- Périodiques; Adhesie; Kleefstoffen; Adhesion; Adhesives; Periodicals; 668.3
• DOI: 10.1016/j.ijadhadh.2020.102549
• Languages: English
• ISSNs: 0143-7496

Abstract

Abstract: Our previous studies analyzed the adhesive strength of butt joint systematically in terms of the intensity of singular stress field (ISSF) by using two-dimensional modeling. In consideration of the actual specimen geometry, in this paper, the adhesive strength of butt joint is analyzed by using three-dimensional modeling. A mesh-independent numerical method combined with the finite element method (FEM) is used to calculate the ISSF. The ISSF distribution on the interface outer edge is analyzed, the effect of adhesive thickness is investigated. The ISSF at the interface vertex is analyzed by using a small fillet instead. The difference between 2D and 3D models for adhesive strength evaluation is discussed. The usability of 2D modeling is investigated.