Effect of Crack Front Curvature and Side Grooving on CTOD δ5 and J-Integral in CT and 3PB Specimens

Journal of Testing and Evaluation

Volumn 27, Issue 5, 1999, Pages 312-319

  Nikishkov, Gennadiy P ^a   Heerens, Jürgen ^a   Hellmann, Dieter ^a  

^a INSTITUTE OF MATERIALS RESEARCH   (Germany)

Author keywords

Compact tension specimen; CTOD; Curved crack front; Finite element analysis; J integral; Three point bend specimen

Indexed keywords

EID: 0005589747     PISSN: 00903973     EISSN: None     Source Type: Journal    
DOI: 10.1520/jte12231j     Document Type: Article

References (11)

1. Swedlow, J. L. and Ritter, M. R., "Stress Analysis and Growth of Cracks," ASTM STP 513, ASTM, Philadelphia, PA, 1972, pp. 78-89.
2. Crouch, B. A., "The Effect of Crack Front Curvature and Side-Grooving on Three Point Bend Specimen Fracture Toughness Measurements," International Journal of Fracture, 1991, Vol. 52, pp. 275-292.
3. ESIS P2-92, "ESIS Procedure for Determining the Fracture Behavior of Materials," 1992.
4. Hellmann, D. and Schwalbe, K.-H., "On the Experimental Determination of CTOD-Based R-curves," The Crack Tip Opening Displacement in Elastic-Plastic Fracture Mechanics, K.-H. Schwalbe, Ed., Springer, Heidelberg, 1986, pp. 115-132.
5. 5 as an Operational Definition of the CTOD and Its Practical Use," Fracture Mechanics: 26th Volume, ASTM STP 1256, W. G. Reuter, J. H. Underwood, and J. C. Newman, Eds., American Society for Testing and Materials, Philadelphia, 1995, pp. 763-778.
6. Rice, J. R., "A Path Independent Integral and the Approximate Analysis of Strain Concentrations by Notches and Cracks," Journal of Applied Mechanics, Transactions of ASME, Vol. 35, 1968, pp. 231-245.
7. ABAQUS Version 5.5. Hibbit, Karlsson and Sorensen, Providence, RI, 1995.
8. Merkle, J. G. and Corten, H. T., "A J-Integral Analysis for the Compact Specimen, Considering Axial Force as Well as Bending Effects," Journal of Pressure Vessel Technology, Transactions of the ASME, Vol. 96, 1974, pp. 286-292.
9. Li, F. Z., Shih, C. F., and Needleman, A., "A Comparison of Methods for Calculating Energy Release Rates," Engineering Fracture Mechanics, 1985, Vol. 21, pp. 405-421.
10. Hutchinson, J. W., "Singular Behavior at the End of a Tensile Crack in a Hardening Material," Journal of Mechanics and Physics of Solids, Vol. 16, 1968, pp. 13-31.
11. Rice, J. R. and Rosengren, G. F., "Plane Strain Deformation Near a Crack Tip in a Power-Law Hardening Material," Journal of Mechanics and Physics of Solids, Vol. 16, 1968, pp. 1-12.