Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical Computation of the Stress Itensity Factor of A Cracked Viscoelastic Body Under the Impact Load

충격하중을 받는 점탄성 균열의 응력확대계수 계산

  • 이성희 (금오공과대학교 기계공학부 BK21) ;
  • 심우진 (금오공과대학교)
  • Published : 2004.10.01
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Abstract

In this paper, A new finite element method for the time domain analysis of the dynamic stress intensity factor of two-dimensional viscoelastic body with a stationary central crack under the transient dynamic load is presented, which is based on the intergrodifferential equations of motion in the isotropic linear viscoelasticity and the Galerkin's method. The vlscoelastic material is assumed to be elastic in dilatation and behaves like a standard linear solid in shear. As a numerical example, the Chen's problem in viscoelastodynamic version is solved for the parametric study about the effect of viscosity and relaxation time on the dynamic stress intensity factor.

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References

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