Genetic algorithm based reconstruction of the elastic moduli of orthotropic plates using an ultrasonic guided wave single-transmitter-multiple-receiver SHM array
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Cites background or methods from "Genetic algorithm based reconstruct..."
...Some experiments on plates are conducted using piezoelectric transducers for both excitation and detection of the waves (Rogers, 1995, Vish- nuvardhan et al., 2007)....
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...A multi-modal analysis is favourable, especially for orthotropic materials, as the components of the elastic moduli affect each mode differently and with different sensitivities (Vishnuvardhan et al., 2007)....
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Cites background or methods from "Genetic algorithm based reconstruct..."
...It is the normal practice to carry out the inversion assuming an a priori knowledge of the material symmetry [4, 6 ,7]....
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...The subsequent trials are driven by the evolutionary process [ 6 ] involving crossover (jumps in solution space), creep (search space is expanded), mutation (to avoid stagnation), and elitism (to preserve good solutions)....
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...Normally, elastic moduli are determined by minimizing the error between experimentally measured ultrasonic velocities and those calculated with an assumed set of elastic moduli [4, 6 ,7]....
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...Genetic algorithms are robust, very efficient in finding the near global minimum (or maximum) in multidimensional search spaces and have been used extensively in obtaining elastic moduli [4, 6 ,7,13]....
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11 citations
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