繊維傾斜をもつ合板の縦振動試験によるヤング率測定に及ぼす試験体幅の影響

抄録

The off-axis Young’s modulus of plywood was obtained by conducting longitudinal vibration tests using specimens with various widths and performing a subsequent numerical analysis on the test data. The off-axis Young’s modulus was dependent on the width of specimen particularly when the off-axis angle ranged from 30° to 60°, and it approached the value theoretically predicted by the transformation rule as the width of specimen increased. Therefore, the width of specimen should be sufficient to measure the off-axis Young’s modulus of plywood accurately using the longitudinal vibration test.