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Inverse analysis FOR two-dimensional structures using the boundary element method
Affiliation:1. School of Information Engineering, Guangdong Medical College, Dongguan, China;2. Department of Physics, Shaoguan University, Shaoguan, China;3. School of Computer Science, Shaoguan University, Shaoguan, China;4. School of Electronics and Information, South China University of Technology, Guangzhou, China;1. Aeronautics Institute of Technology, São José dos Campos, Brazil;2. Institute of Aeronautics and Space, São José dos Campos, Brazil;1. Lyles School of Civil Engineering, Purdue University, West Lafayette, IN 47907, USA;2. Sao Carlos School of Engineering, University of Sao Paulo, Sao Carlos, SP 13566, Brazil;1. Department of Materials and Aerospace Production, Universidad Politécnica de Madrid, Madrid 28040, Spain;2. Airbus Defence and Space S.A.U., Getafe 28906, Spain;1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, People''s Republic of China;2. School of Physics & Mechanical & Electrical Engineering, Xiamen University, Xiamen, Fujian 361005, People''s Republic of China
Abstract:Inverse analysis is currently an important subject of study in several fields of science and engineering. The identification of physical and geometric parameters using experimental measurements is required in many applications. In this work a boundary element formulation to identify boundary and interface values as well as material properties is proposed. In particular the proposed formulation is dedicated to identifying material parameters when a cohesive crack model is assumed for 2D problems. A computer code is developed and implemented using the BEM multi-region technique and regularisation methods to perform the inverse analysis. Several examples are shown to demonstrate the efficiency of the proposed model.
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