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Impact Response of a Cracked Orthotropic Medium
64
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0
References
1983
Year
Materials ScienceStress WaveEngineeringMechanicsImpact LoadingMechanical EngineeringDynamic Crack PropagationStressstrain AnalysisSolid MechanicsResidual StressImpact ResponseLaplace Transform PlaneStructural MechanicsCrack FormationCentral CrackTransient ProblemMechanics Of MaterialsFracture Mechanics
A solution is given for the problem of an infinite orthotropic solid containing a central crack deformed by the action of suddenly applied stresses to its surfaces. Laplace and Fourier transforms are employed to reduce the transient problem to the solution of standard integral equations in the Laplace transform plane. A numerical Laplace inversion technique is used to compute the values of the dynamic stress-intensity factors, k1 (t) and k2 (t), for several orthotropic materials, and the results are compared to the corresponding elastostatic values to reveal the influence of material orthotropy on the magnitude and duration of the overshoot in the dynamic stress-intensity factor.