Nonlinear Input Power Flow Analysis of a Plate with a Breathing Crack

Zhong Hao Pang; Xiang Zhu; Tian Yun Li; Ling Zhang

doi:10.4028/www.scientific.net/AMM.638-640.163

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 638-640Nonlinear Input Power Flow Analysis of a Plate...

Nonlinear Input Power Flow Analysis of a Plate with a Breathing Crack

Abstract:

Plates are commonly used in engineering structures. However crack is the most common form of damages in the plate structures. The crack in the plate will open and close during vibrational cycle, making the cracked structure with nonlinear dynamic characteristics. Based on vibrational power flow theory, the nonlinear dynamic analysis of a plate structure is carried out. The contact elements are used to simulate the nonlinear behavior of the breathing crack. Aiming to study the input power characteristics and the super harmonic resonance of a breathing cracked plate which is under the resonant excitation. By the finite element calculation, the structural input power curve is analyzed, which provides a theoretical basis for the damage identification of cracked structures.

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Periodical:

Applied Mechanics and Materials (Volumes 638-640)

Pages:

163-167

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.638-640.163

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Online since:

September 2014

Authors:

Zhong Hao Pang*, Xiang Zhu, Tian Yun Li, Ling Zhang

Keywords:

Breathing Cracked Plate, Damage Identification, Input Power Flow, Resonant Excitation, Super-Harmonic Resonance

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* - Corresponding Author

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