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Digital image correlation was used to measure the fracture process of the castiron in this research. The crack opening displacements, crack mouth opening displacements and neutral layer positions were obtained by correlation calculating. The initial crack load was determined by analyzing results of the strain-rate of the area around the tip of the pre-notch. The predicted fracture initiation and crack...
A novel numerical analysis of fine discretization was used to investigate the response of beam under aperiodic excitations. The aperiodic excitations turned into the superposition of a series of periodic excitations in a tiny time interval. The method of harmonic response analysis was applied in the solution of aperiodic steady response. The algebraic algorithm of direct steady-state analysis can...
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