The Moving Crack Problem of Orthotropic Functionally Graded Materials under Antiplane Loading

Jun Lin Li; Zhong He Sui; Wei Yang Yang

doi:10.4028/www.scientific.net/AMR.33-37.687

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Deformation Analysis of Shape Memory Alloy Using SEM Scanning Moiré Method
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Study of Mechanical Properties of the Spider Silk Using a Micro-Tensile System and DIC Methods
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The Moving Crack Problem of Orthotropic Functionally Graded Materials under Antiplane Loading
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Nonlinear Stability of Fixed-Fixed FGM Arches Subjected to Mechanical and Thermal Loads
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The Crack-Tip Higher Order Asymptotic Fields for a Mode III Crack in a Functionally Gradient Material
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 33-37The Moving Crack Problem of Orthotropic...

The Moving Crack Problem of Orthotropic Functionally Graded Materials under Antiplane Loading

Abstract:

Dynamic problems of Yoffe mode crack are studied under antiplane shear impact in infinite orthotropic functionally graded materials. The shear modules in two directions are assumed to vary in terms with power function form of dual parameters of arbitrary time power. By using integral transform-dual integral equations method, the stress field and dynamic stress intensity factor near crack tip are obtained. And the influences of material in homogenous coefficient and graded parameters and crack moving speed to dynamic stress intensity factor are analyzed in virtue of Matlab software. Results show that the dimensionless dynamic stress intensity factor will decrease with the increase of moving speed of crack, which is opposite to the result of the dynamic problem of infinite strip in FGM. And the dimensionless dynamic stress intensity factor will decrease with the increase of graded parameters and rise with the increase of material in homogenous coefficient.