Cylindrical interface cracks in 1-3 piezocomposites |
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| Authors: | Y Sapsathiarn T Senjuntichai RKND Rajapakse |
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| Affiliation: | 1. Department of Mathematics, Colorado State University, Fort Collins, CO 80523-1874, USA;2. Department of Mathematics, Colorado State University, Fort Collins, CO 80523-1874, USA;3. Pacific Northwest National Laboratory, P.O.Box 999, Richland, WA 99352, USA;1. Department of Management and Engineering, University of Padua, Stradella S. Nicola 3, Vicenza 36100, Italy;2. Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, 7491, Trondheim, Norway;3. Department of Mechanical Engineering, Iran University of Science and Technology, Narmak, 16846, Tehran, Iran |
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| Abstract: | 1-3 Piezocomposites are made by embedding piezoelectric fibers/rods in polymer matrix materials. Fiber–matrix interface fracture can affect the performance of piezocomposites. In this paper, axisymmetric interfacial cracks in piezocomposites are studied by considering an idealized model of a single piezoelectric fiber in a matrix material. The displacement discontinuity method is used to formulate the Mode I and II crack problems. The fundamental solutions required for DDM are derived explicitly by using the electroelastic field equations and Fourier integral transforms. The dependence of Mode I and II stress intensity factors of single and multiple interface cracks on fiber and matrix material properties, crack length and distance between cracks are investigated. |
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