An Analytical and Experimental Study of Mixed-Mode Ductile Fracture under Nonproportional Loading

The paper presents an investigation of mixed-mode ductile fracture for biaxial tension plates containing a central crack of varying inclination angles under non proportional loading. The critical fracture loads at crack initiation as well as crack initia tion angles are obtained for each of the three prescribed nonproportional loading paths. The experimental measurements are then compared to those predicted by finite element analysis based on an anisotropic damage mechanics model which has been developed ear lier by Chow and his co-workers and employed to characterize successfully, various damage-affected fracture problems including mixed-mode crack initiation and propagation under proportional loading [1-5].

[1]  Dusan Krajcinovic,et al.  CONTINUUM DAMAGE MECHANICS , 1984 .

[2]  C. Chow,et al.  Mixed mode ductile fracture using the strain energy density criterion , 1985, International Journal of Fracture.

[3]  F. A. McClintock,et al.  A Criterion for Ductile Fracture by the Growth of Holes , 1968 .

[4]  C. L. Chow,et al.  An anisotropic theory of continuum damage mechanics for ductile fracture , 1987 .

[5]  Shigeru Aoki,et al.  A finite element study of the near crack tip deformation of a ductile material under mixed mode loading , 1987 .

[6]  D. M. Tracey,et al.  On the ductile enlargement of voids in triaxial stress fields , 1969 .

[7]  Viggo Tvergaard,et al.  VOID GROWTH AND FAILURE IN NOTCHED BARS , 1988 .

[8]  S. Murakami.  Progress of continuum damage mechanics. , 1987 .

[9]  C. L. Chow,et al.  On evolution laws of anisotropic damage , 1989 .

[10]  C. Chow,et al.  Ductile crack propagation with the strain-energy density criterion , 1985 .

[11]  C. Chow,et al.  A normative representation of stress and strain for continuum damage mechanics , 1989 .

[12]  Dusan Krajcinovic,et al.  Constitutive Equations for Damaging Materials , 1983 .

[13]  M. E. Kipp,et al.  Theory of spall damage accumulation in ductile metals , 1977 .

[14]  A. Gurson.  Continuum Theory of Ductile Rupture by Void Nucleation and Growth: Part I—Yield Criteria and Flow Rules for Porous Ductile Media , 1977 .

[15]  Anthony W. Thompson,et al.  Modeling of local strains in ductile fracture , 1987 .

[16]  C. L. Chow,et al.  An anisotropic theory of elasticity for continuum damage mechanics , 1987 .

[17]  F. A. Leckie,et al.  Creep problems in structural members , 1969 .

[18]  T. Lu,et al.  On constitutive equations of inelastic solids with anisotropic damage , 1990 .

[19]  C. Chow,et al.  On crack initiation angle of mixed mode ductile fracture with continuum damage mechanics , 1989 .

[20]  J. Chaboche.  Continuum Damage Mechanics: Part I—General Concepts , 1988 .

[21]  C. L. Chow,et al.  A finite element analysis of continuum damage mechanics for ductile fracture , 1988, International Journal of Fracture.

[22]  Jean Lemaitre,et al.  Local approach of fracture , 1986 .

[23]  J. Wang,et al.  Crack Propagation in Mixed-Mode Ductile Fracture with Continuum Damage Mechanics , 1989 .

[24]  A. Dragon,et al.  Plasticity and ductile fracture damage: Study of void growth in metals , 1985 .

[25]  H. Saunders,et al.  Finite element procedures in engineering analysis , 1982 .