Nonlinear analysis and improved design of single-sided bonded patch repairs
Keywords:
adhesive bonding, patch repairs, analytic model, nonlinear finite element analysisAbstract
This paper presents a relatively simple and effective procedure to design single-sided adhesively bonded patch repairs in the case of cracked plates in tension. Starting from analytical relations presented in the literature, a more general approach was realized in order to evaluate both the repairs with adherends of constant thickness and the situation when the adherends are tapered in the overlap zone. Nonlinear finite element analyses were made in order to validate the analytical model. The good agreement between the obtained results indicates that analytical solutions are able to put into evidence the geometrical nonlinearity of single-sided joints in tension.
References
ADAMS, R.D., COMYN J., WAKE, W.C., Structural adhesive joints in engineering, London, Chapman & Hall, 1997.
DAVIES, M., BOND, D., Principles and practice of adhesive bonded structural joints and repairs, Int. Journal of Adhesion and Adhesives, 19, pp. 91-105, 1999.
HART-SMITH, L.J., Designing to minimize peel stresses in adhesive bonded joints, in: Delamination and debonding of materials (Johnson W.S., editor), ASTM STP 876, pp. 238- 266, 1985.
JARRY, E., SHENOI, R.A., Performance of butt strap joints for marine applications, Int. Journal of Adhesion and Adhesives, 26, pp. 162-176, 2006.
LUO, O., TONG, L., Closed-form solution for nonlinear analysis of single-sided bonded composite patch repairs, AIAA Journal, 45, 12, pp. 2957-2965, 2007.
SANDU, M., SANDU, A., CONSTANTINESCU, D.M., SOROHAN St., The effect of geometry and material properties on the load capacity of single-strapped adhesive bonded joints, Key Engineering Materials, 339, pp. 89-96, Trans Tech Publications, Switzerland, 2009.
SHAHIN, K., TAHERI, F., Analysis of deformations and stresses in balanced and unbalanced adhesively bonded single-strap joints, Composite Structures, 81, pp. 511-524, 2007.
Published
Issue
Section
Copyright (c) 2020 The Romanian Journal of Technical Sciences. Applied Mechanics.
This work is licensed under a Creative Commons Attribution 4.0 International License.