Affiliation:
1. Department of Structural Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy
Abstract
In this paper a general study on tubular adhesive joint under axial load is presented. We focus our attention on both static and dynamic behavior of the joint, including shear and normal stresses and strains in the adhesive layer, joint optimization, failure load for brittle crack propagation, and crack detection based on free vibrations. First, we have considered the shear and normal stresses and strains in the adhesive layer to propose an optimization to uniform axial strength (UAS) and to reduce the stress peaks in the bond. The stress analysis confirms that the maximum shear stresses are attained at the ends of the adhesive and that the peak of maximum shear stress is reached at the end of the stiffer tube and does not tend to zero as the adhesive length approaches infinity. A fracture energy criterion to predict brittle crack propagation for conventional and optimized joint is presented. The stability of brittle crack propagation and the strength of the joint, as well as the ductile-brittle failure transition, are analyzed. A detection method to predict crack severity, based on joint dynamic behavior, is also proposed. The crack detection is achieved through the determination of the axial natural frequencies of the joint as a function of the crack length, by determining the roots of a determinantal equation.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference28 articles.
1. Beevers, A. , 1999, “Durability Testing and Life Prediction of Adhesive Joints,” Int. J. Mat. Prod. Tech., 14, pp. 373–384.
2. Goland, M., and Reissner, E., 1944, “The Stresses in Cemented Joints,” ASME J. Appl. Mech., 11, pp. 17–27.
3. Lubkin, J. L., and Reissner, E., 1956, “Stress Distribution and Design Data for Adhesive Lap Joints Between Circular Tubes,” Trans. ASME, 78, pp. 1213–1221.
4. Adams, R. D., and Peppiatt, N. A., 1977, “Stress Analysis of Adhesive Bonded Tubular Lap Joints,” J. Adhes., 9, pp. 1–18.
5. Renton, W. J., and Vinson, J. R., 1977, “Analysis of Adhesively Bonded Joints Between Panels of Composite Materials,” ASME J. Appl. Mech., 44, pp. 101–106.
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