Evaluation of the mechanical spectrum of the deposited materials in a composite system in torsion pendulum.
Previously, an approximate way to subtract the mechanical spectra (complex Young's modulus) of deposited materials from a composite reed vibration was proposed [X. N. Ying, Physica B 387, 376 (2007)]. In this article, the way of subtraction of mechanical spectra of deposited materials was extended to the complex shear modulus by a composite torsion pendulum method. Previous approximate formulas to calculate the mechanical spectra of deposited materials were found still to be valid except that new parameters were used. This deduction shows that previous approximate formulas are very applicable in the mechanical spectrum measurement. At last, the experimental result of glycerol was shown in approximate formulas.
Xu
Z C
ZC
National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing, China.
Ying
X N
XN
D003198:Computer Simulation; D004548:Elasticity; D008422:Materials Testing / Q000379:methods*; D019563:Mechanics; D008956:Models, Chemical; D033081:Shear Strength; D013314:Stress, Mechanical; D019415:Torque; D014732:Vibration