Vibrothermographical Simulation of Cracked Structures

Chin Yuan Hung; Yunn Lin Hwang; Wei Hsin Gau; Kun Nan Chen

doi:10.4028/www.scientific.net/KEM.823.97

Paper Titles

Effects of T6 Heat Treatment on Fretting Wear Resistance of the Aluminum-Silicon Alloys
p.69

Influence of Niobium Dopant on the Corrosion Resistance of a-C:N and a-C:N:H Coatings
p.75

The Effect of CN Coatings Doped with Niobium, Titanium and Zirconium Metal on Mechanical, Tribological and Corrosion Resistance Properties of Thin Films
p.81

Elasto-Plastic Contact Stress Analysis of Hardened Elements under Repeated Contact Loading
p.91

Vibrothermographical Simulation of Cracked Structures
p.97

Investigation of Lubrication Characteristics for a Soft Contact Lens
p.105

Wear Characteristics on the can Opener of SUS 420J2
p.111

Friction Properties of Ni-P-SiC Composite Plating in Water
p.117

Effects of Flow Properties of Lithium Soap Greases on Bearing Torque
p.123

HomeKey Engineering MaterialsKey Engineering Materials Vol. 823Vibrothermographical Simulation of Cracked...

Vibrothermographical Simulation of Cracked Structures

Abstract:

This research performs finite element simulations of cracked structures undergoing the vibrothermography process, which is an experimental technique gaining popularity for structural damage identification. In vibrothermography, a vibration shaker is used to excite the test structure. If the structure has cracks or defects, frictional heat will be generated at those cracks and thermal images can be recorded by an infrared camera. The vibrothermographical simulation includes modal analysis, transient vibration and transient thermal analysis. Two simulated examples are presented in this work: the first one is an aluminum-alloy plate with a hairline crack; the second example is a brake rotor with a hairline crack on one of the bolt-hole surfaces. Although higher modes are usually more difficult to excite, they may be used in vibrothermography to detect structural cracks more efficiently.

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Periodical:

Key Engineering Materials (Volume 823)

Pages:

97-104

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.823.97

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Online since:

September 2019

Authors:

Chin Yuan Hung, Yunn Lin Hwang, Wei Hsin Gau, Kun Nan Chen*

Keywords:

Cracked Structure, Friction, Transient Thermal Simulation, Vibrothermography

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* - Corresponding Author

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