User menu

Accès à distance ? S'identifier sur le proxy UCLouvain

Influence of test parameters on the measurement of the essential work of fracture of zinc sheets

Primary tabs

Marchal, Y. Delannay, Francis [UCL]

The Essential Work of Fracture (EWF) concept is used to characterize the fracture of thin plates of a zinc alloy. The consistency and applicability of the EWF approach are discussed. The successive stages of the fracture process were studied: the evolution of the shape of the crack tip was observed with a scanning electron microscope, the shape of the plastic zone and the evolution of necking in the ligament ahead of the crack tip were measured using a laser profilometer and the onset of cracking in the ligament was detected by means of a TV camera coupled with acoustic emission recording. The influence of both test parameters and material parameters on the Essential Work of Fracture (omega(e)) and on the CTOD (delta(c)) are elucidated. The effects of specimen geometry, deformation rate, texture and grain size are especially investigated. The main advantages and drawbacks of the EWF method are highlighted.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 1996
Language Anglais
Journal information "International Journal of Fracture" - Vol. 80, no. 4, p. 295-310 (1996)
Peer reviewed yes
Publisher Kluwer Academic Publ (Dordrecht)
issn 0376-9429
e-issn 1573-2673
Publication status Publié
Affiliation UCL - FSA/MAPR - Département des sciences des matériaux et des procédés
Keywords elasto-plastic fracture ; zinc ; toughness ; texture
Links
  1. B. Cotterell and J.K. Reddel, The essential work of plane stress ductile fracture, International Journal of Fracture 13 (1977) 267?277.
  2. K.B. Broberg, Crack-growth criteria and non-linear fracture mechanics, Journal of Mechanics and Physics of Solids 19 (1971) 407?418.
  3. Y.W. Mai, On the plane-stress essential fracture work in plastic failure of ductile materials, International Journal of Mechanical Sciences 35 (1993) 995?1005.
  4. Y.W. Mai and B. Cotterell, Effects of pre-strain on plane stress ductile fracture in ?-brass, Journal of Materials Science 15 (1980) 2296?2306.
  5. Y.W. Mai, B. Cotterell and A.G. Atkins, Fracture mechanics and metalworking, Fourth Tewksbury Symposium, Melbourne (February 1979).
  6. JP. Keustermans, Y. Marchal and F. Delannay, On the testing of the elasto-plastic cracking resistance of thin plates, ECF10, Berlin (September 1994) 261?267.
  7. JP. Keustermans, Analyse fractale et mécanique de la rupture, PhD Thesis, Université Catholique de Louvain (1995).
  8. S. Hashemi, Plane stress fracture of polycarbonate films, Journal of Materials Science 28 (1993) 6178?6184.
  9. A.S. Saleemi and J.A. Nairn, The essential work of fracture technique as applied to toughened nylon, Polymers Preprint 29 (1988) 155?156.
  10. S. Hashemi and Z. Yuan, Fracture of PEEK films, Plastics, Rubber and Composites Processing and Applications 21 (1994) 151?161.
  11. R.S. Seth, A.G. Robertson, Y.W. Mai and J.D. Hoffmann, Plane stress fracture toughness of paper, Tappi Journal 76 (1993) 109?116.
  12. G. Levita, L. Parisi and A. Marchetti, The work of fracture in semiductile polymers, Journal of Materials Science 29 (1994) 4545?4553.
  13. J.N. Miller, Calibration methods in spectroscopy: Errors in calibration graphs, Spectroscopy International 3 (1991) 45?47.
  14. Mai Yiu-Wing, Powell Peter, Essential work of fracture and j-integral measurements for ductile polymers, 10.1002/polb.1991.090290702
  15. R. Knockaert, I. Doghri, Y. Marchal, T. Pardoen and F. Delannay, Experimental and numerical investigation of fracture in double edge notched steel plates, International Journal of Fracture, submitted.
Bibliographic reference Marchal, Y. ; Delannay, Francis. Influence of test parameters on the measurement of the essential work of fracture of zinc sheets. In: International Journal of Fracture, Vol. 80, no. 4, p. 295-310 (1996)
Permanent URL http://hdl.handle.net/2078.1/46453