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Design analysis of adhesively bonded structures

Ee Hua Wong ; Johan Liu (Institutionen för mikroteknologi och nanovetenskap, Elektronikmaterial och system )
Polymers (2073-4360). Vol. 9 (2017), 12,
[Artikel, refereegranskad vetenskaplig]

The existing analytical solutions for the peeling and shearing stresses in polymeric adhesively bonded structures are either too inaccurate or too complex for adoption by practicing engineers. This manuscript presents a closed-form solution that is reasonably accurate yet simple and concise enough to be adopted by practicing engineers for design analysis and exploration. Analysis of these concise solutions have yielded insightful design guidelines: (i) the magnitude of peeling stress is generally higher than that of shearing stress; (ii) the peeling stress in a balanced structure may be reduced most effectively by reducing the elastic modulus of the adherends or by increasing the adhesive-to-adherend thickness ratio and less effectively by reducing the elastic modulus of the adhesive; and (iii) the peeling stress in an unbalanced structure may be reduced by increasing the in-plane compliance of the structure, which may be implemented most effectively by reducing the thicknesses of the adherends and less effectively by reducing the elastic modulus of the adherends.

Nyckelord: Balanced structures; Closed-form solutions; Single lap joint; Unbalanced structures



Denna post skapades 2017-12-29. Senast ändrad 2018-01-19.
CPL Pubid: 254188

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Elektronikmaterial och system

Ämnesområden

Polymerteknologi

Chalmers infrastruktur