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- W2977632451 abstract "Finite element model updating is a technique to improve the simulated finite element model of a structure from its experimental modal test data. This paper utilizes the direct updating algorithm for a composite material beam to update its modal-model. In this paper, initially finite element model updating of the steel beam is carried out. There are different types of possible errors may in the finite element model of a steel beam such as in the geometry, material properties, boundary conditions, and in joints etc. The finite element model of the beam is carried out by assuming the uncertainty in the Young’s modulus of the beam, named as “un-correct model or a simulated model”. Another finite element model of the beam has built up with no uncertainty, named as “correct model or experimental model”. It is assumed that the experimental model is correct and represents the actual/real experimental conditions and properties of the steel beam structure. The objective of the direct updating method is to update or correct the simulated finite element model of a steel beam by using the experimental finite element model data. The main objective of this paper is to update the analytical finite element model of the composite beam by using direct updating method. The uncertainties in the simulated finite element model of the composite structures may be in the modulus of elasticity of the fibers and matrices, individual densities, modulus of rigidity, and most importantly in the fiber orientations. The simulated finite element model of the composite beam is carried out by taking all the above uncertainties and corrects it by using the direct updating method. It is found that direct updating method is simple and easy to apply for composite structures and can effectively correct the simulated finite element model from the experimental modal data." @default.
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- W2977632451 date "2020-01-01" @default.
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- W2977632451 title "Finite element model updating of a composite material beam using direct updating method" @default.
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- W2977632451 doi "https://doi.org/10.1016/j.matpr.2019.09.024" @default.
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