応力パルスを用いた曲りはりの衝撃応答

概要

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Shock response of curved with various curvatures and open angles were examined by using stress pulses. The dynamic photoelasic and the semicondutor strain gauge were used for the measurement of stress pulses. It was observed that the phase and mode transitions occurred during the process of stress pulse propagation through the beam. On the incidence of positive stress pulses into the curved bead, the transition of the pulse phase to negative occurred at the position of stress concentration, while on the incidence of negative pulses the phase was converted into positive. It was also ascertained that the transition of the pulse mode occurred also at the position of stress concentration. In addition, the position of the stress concentration and the dynamic stress concentration factor were discussed in relation to the curvature and open angle of curved beams.
1985-02-15