An engineering formula for the stress concentration factor of orthotropic composite plates |
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| Affiliation: | 1. Fatigue and Fracture Lab., Centre of Excellence in Experimental Solid Mechanic and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, 16846 Tehran, Iran;2. Department of Engineering Design and Materials, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, 7491 Trondheim, Norway;1. University of Sao Paulo, Brazil;2. Delft University of Technology, Netherlands;1. School of Civil Engineering, Chongqing University, Chongqing 400044, China;2. College of Aerospace Engineering, Chongqing University, Chongqing 400044, China;3. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;4. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China;5. Chongqing Key Laboratory of Heterogeneous Material Mechanics, Chongqing University, Chongqing 400044, China;6. College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China;7. AECC Beijing Institute of Aeronautic Materials, Beijing 100095, China |
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| Abstract: | An engineering formula for the theoretical stress concentration factor of orthotropic notched plates under tension is provided, as a function of the material elastic constants and the Kt of the corresponding isotropic case. The accuracy and limits of applicability of the new solution are discussed by comparison to data from the literature and results from FE analyses on notched geometries of practical interests. The proposed solution represents a very useful tool to estimate the stress concentration factor of notched orthotropic plates, composite orthotropic laminae, orthotropic unidirectional laminates and homogenised orthotropic composite laminates. |
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| Keywords: | B Stress concentrations A Laminates C Analytical modelling |
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