Dynamic Stress Intensity Factor and Dynamic Crack Propagation Characteristics of Anisotropic Material

GAO Xin; WANG Han-gong; KANG Xing-wu

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Article Navigation > Applied Mathematics and Mechanics > 2008 > 29(9): 1017-1027

GAO Xin, WANG Han-gong, KANG Xing-wu. Dynamic Stress Intensity Factor and Dynamic Crack Propagation Characteristics of Anisotropic Material[J]. Applied Mathematics and Mechanics, 2008, 29(9): 1017-1027.

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Dynamic Stress Intensity Factor and Dynamic Crack Propagation Characteristics of Anisotropic Material

501 Section of Xi'an High-Tech Institute, Xi'an 710025, P. R. China

Received Date: 2008-05-12
Rev Recd Date: 2008-08-08
Publish Date: 2008-09-15

Abstract

Abstract

Based on mechanics of anisotropic material, the dynamic propagation problem of mode Ⅲ crack in an infinite anisotropic body is investigated. The stresses and displacements around the crack tip were expressed as analytical complex function, which can be represented in power series. The constant coefficients of the series are determined by boundary conditions. The expression of dynamic stress intensity factors for mode Ⅲ crack was obtained, and the dynamic stress components, strain components and dynamic displacement components around the crack tip were derived. The crack propagation characteristics were represented with mechanical properties of anisotropic material, crack speeds M and parameters alpha. The faster the crack velocity, the greater the maximum of stress components and dynamic displacement components around crack tip. The parameters alpha particularly affect the stress components and dynamic displacement components around crack tip.
- dynamic,
- stress intensity factor,
- crack propagation,
- anisotropy

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References(13)

References

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