Influence of Specimen Size on the Impulse Excitation Technique

Chen Guang Wei; Yi Wang Bao; Zheng Quan Liu; Dong Wang

doi:10.4028/www.scientific.net/KEM.633.459

Paper Titles

A Proposed Solution to Quantitative Phase Analysis of Mullite
p.443

A New Method for Determining Strength and Fracture Toughness of Ceramic Materials in Air at 1500-2000 °C
p.447

Creep Behavior of Building Silicone Sealant under Long-Term External Loading and its Time-Stress Equivalence
p.451

Measurement of Residual Stress in Diesel Engine Castings
p.455

Influence of Specimen Size on the Impulse Excitation Technique
p.459

Tribological Test of Different Ceramics in Different Humidity Conditions
p.463

Thermal Performance Analysis of the Vacuum Insulation Structure Panel Based on FLUENT
p.467

Determining the Thermal Shock Elastic Behavior of Mullite Ceramic Regenerator Material by Ultrasonic Testing
p.472

Input Impedance Adjustment and Property Optimization for Microwave Absorbing Slabs
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 633Influence of Specimen Size on the Impulse...

Influence of Specimen Size on the Impulse Excitation Technique

Abstract:

The Impulse Excitation technique is a nondestructive and very convenient testing method. It could be applied at different circumstances such as high temperatures, low temperatures and controlled humidity. The Impulse Excitation technique is based on the analysis of the vibration of a test sample after it was impulse excited. The elastic properties of a test specimen are related to its mechanical resonance frequency. In this paper, the regular of resonance frequency changed with specimen’s size was discussed. Elastic modulus of glass with different length, width and thickness were measured, and ceramic composite material with small size was tested. The results indicate that the resonance frequency of specimen changed with its size regularly, and the specimen with small size has poor accuracy of elastic modulus measurement.

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Periodical:

Key Engineering Materials (Volume 633)

Pages:

459-462

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.633.459

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Online since:

November 2014

Authors:

Chen Guang Wei, Yi Wang Bao*, Zheng Quan Liu, Dong Wang

Keywords:

Elastic Modulus, Impulse Excitation, Shear Modulus

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