[1]SANDOZ Jean Luc,殷亚方,BENOIT Y,姜笑梅.木材声学-超声波分等检测技术及工业应用[J].木材工业,2007(06):27-30.
SANDOZ Jean Luc1, YIN Ya-fang2, BENOIT Y1, et al. An Acousto-ultrasonic Timber Grading and Inspection Technology and Industrial Applications[J]. China Wood Industry, 2007,(6):27-30.
SANDOZ Jean Luc1, YIN Ya-fang2, BENOIT Y1, et al. An Acousto-ultrasonic Timber Grading and Inspection Technology and Industrial Applications[J]. China Wood Industry, 2007,(6):27-30. DOI: 10.19455/j.mcgy.2007.06.009.
In order to design efficient timber structures by using an advanced reliability concept,timber material has to be graded for a specific strength class based on both MOE and σb values.An acousto-ultrasonic grading method has been developed as an upgrading of the stress wave ultrasonic technique.The basic non-destructive variables are the speed of the low frequency wave,and the transmitted energy in the time domain.Based on these two technical data,MOE and σb can be evaluated with a very good correlation.