Nonlinear analysis and improved design of single-sided bonded patch repairs
Keywords:adhesive bonding, patch repairs, analytic model, nonlinear finite element analysis
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.
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