Effect of Relative Humidity on Reliability of Nondestructive Testing for Birch Laminated Veneer Lumber
Abstract
Three different nondestructive testing (NDT) methods and the static bending test were conducted on the Laminated Veneer Lumber (LVL) made from birch (Betula platyphylla Suk.) rotary-cut veneers in this study. The NDT methods included the longitudinal vibration method, in-plane and out-plane flexural vibration method. The linear regression between dynamically elastic module and bending strength (MOR) and the effects of relative humidity on the reliability of NDT methods for LVL were investigated. There were four relative humidities including 40%, 50%, 60% and 70%. The results showed that the three non-destructive testing methods can be applied to test mechanical properties of birch LVL, the theory MOR result obtained by adjusted regression equation were reliable and can be applied in the actual project.
Reference
Bing Xue; Ying Cheng Hu; Fang Chao Cheng. (2010). Effect of Relative Humidity on Reliability of Nondestructive Testing for Birch Laminated Veneer Lumber. Advanced Materials Research. https://doi.org/10.4028/www.scientific.net/amr.129-131.584
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