A Combined Model for the Stress State Evaluation in Single Overlap Joints Using Piezo-Ceramic Actuators

Abstract:

In this paper is presented a 2D approach to finite element modeling of a single lap bonded joint. As adherent material a sheet wood was selected and as adhesive, Bison Super Wood D3. In the article a combined method is described, consisting in the placement of piezoelectric actuators on the surface of bonded joint, in order to determine the tensile stress in the overlap joint. A comparison between the experimental, analytical and numerical results has been achieved through a multiphysics modeling - electrical and mechanical coupled problem, in order to evaluate the experimental outcomes. The experimental technique used to measure the mechanical parameters (displacements) was the three-point bending test, where different forces were applied in the mid-span of the structure, in order to maintain a constant displacement rate. The length of the overlap joint was modified from 20 to 50 mm.

• Periodical: Materials Science Forum (Volume 792)
• Pages: 127-132
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.792.127
• Online since: August 2014
• Authors: Gheorghe Paltanea, Veronica Manescu Paltanea, Dorina Popovici, George Papanicolaou, Mihael Sultan
• Keywords: FEM Modeling, PZT-5H Piezo-Actuators, Single Lap Bonded Joint

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