Modulus of elasticity assessment of glass-fibre reinforced bark-based panels by acoustic resonance vibration non-destructive test

2019 5th International Conference on Environment and Renewable Energy

生态环境科学;能源学

Tsalagkas, D.^1 ; Börcsök, Z.^1 ; Pásztory, Z.^1

Innovation Center, University of Sopron, 4 Bajcsy Zs., Sopron

9400, Hungary^1

关键词: Acoustic resonance;    Acoustic vibration;    Glass fibre reinforced;    Non-destructive test;    Nondestructive methods;    Particles reinforced;    Prediction tools;    Wood-based panels;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/307/1/012017/pdf
DOI  :  10.1088/1755-1315/307/1/012017

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

One of the main properties of solid materials are their stiffness. Acoustic vibration non-destructive tests have been successfully used to predict the stiffness, i.e. Young's modulus or modulus of elasticity (MOE) values of solid wood and wood-based panels. In this work, there was an attempt to evaluate the relationship of dynamic MOE longitudinal and static MOE values, of low-density panels produced from bark particles reinforced with various length glass fibres. The findings of the results and the observed strong coefficients of determination suggest the possibility of the proposed Non-Destructive Test (NDT) method as a prediction tool for the MOE estimation of similarly produced bark-based panels. By means of this non-destructive method can be tested the materials without breaking the material and the results available right after the test.