DOI: 10.4028/www.scientific.net/kem.407-408.521
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Hou Jiang Zhang, Ying Ying Cui, Chao Zhi Wang, Juan Su

Abstract: In order to study fundamental methods for determining modulus of elasticity (MOE) of structural lumber with vibration methods, the theoretical basis of the measurement is introduced and a hanging style testing system, which consists of an impulse hammer, accelerometer, computer, etc., is built up. It is found that transverse vibration method can determine resonant frequencies of structural lumber specimens effectively. On the specimen, the distance between impact point and detection point should be as far as p…

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