Correction of Young’s Modulus Calculation in the Flexural Mode of Resonant Column Test

Applied Sciences

Wei-Chun Lin¹  Chi-Chin Tsai¹ 

[1] Department of Civil Engineering, National Chung Hsing University, Taichung 40227, Taiwan;

关键词: resonant column test;    flexural vibration;    Young’s modulus;    shear modulus;    Poisson’s ratio;   

DOI  :  10.3390/app10196675

来源: DOAJ

【 摘 要 】

The resonant column test includes torsional and flexural modes that can be used to obtain reduction curves for the shear modulus and Young’s modulus of the soil, respectively. When the resonant column test is performed under flexural mode, Young’s modulus is calculated mainly using the measured resonant frequency following the formula proposed by Cascante et al. However, this formula does not consider the rotational inertia effect of the electromagnetic drive disk of the resonant column apparatus and thus may inaccurately calculate Young’s modulus. In this study, the formula was modified by considering the rotational inertia effect of the electromagnetic drive disk, and its accuracy was verified by using three aluminum calibration rods with different diameters as a dummy specimen for the resonant tests in flexural and torsional modes.

【 授权许可】

Unknown