... increase in ductility as the Lode parameter decreases below −0.8. Compression–torsion tests extend the data’s stress-space coverage well into the compressive triaxiality region (up to 0.388) and to Lode parameters approaching −1. This experimental program provides the most extensive set of ductile fracture...

... on ductile fracture strain. There is a mounting evidence ( Bai and Wierzbicki, 2008, “A New Model of Metal Plasticity and Fracture With Pressure and Lode Dependence,” Int. J. Plast., 24(6), pp. 1071–1096 ) that, in addition to the stress triaxiality, the normalized third deviatoric stress invariant...

... nucleation and propagation through random-clustered second phase particle fields. The proposed approach is capable of capturing the three-dimensional character of damage phenomena and the three stages of ductile fracture, namely, void nucleation, growth, and coalescence, at the level of discrete particles...

... found. A numerical finite element model is then developed to study the energy consumed in material separation in micro-cutting. The ductile fracture of Al2024-T3 in a complex stress state ahead of the tool is captured using a damage model. Chip formation is simulated via the use of a sacrificial layer...

... by: A. Pelegri. 14 April 2004 29 June 2004 22 02 2005 aluminium silicon compounds particle reinforced composites plastic deformation micromechanics finite element analysis fracture mechanics ductile fracture voids (solid) brittle fracture stress-strain relations quenching...

... in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY . Manuscript received by the Materials Division May 13, 2003; revision received February 23, 2004. Associate Editor: H. M. Zbib. 13 May 2003 23 February 2004 09 11 2004 nickel alloys voids (solid) grain boundaries ductile fracture...

...Yingbin Bao; Tomasz Wierzbicki Various fracture criteria, based on different assumptions and different mechanical models, have been proposed in the past to predict ductile fracture. The objective of this study is to assess their effectiveness and accuracy in a wide range of process parameters...

... received April 11, 2003. Associate Editor: M. Zhou. 03 September 2002 11 April 2003 22 01 2004 fracture mechanics reviews failure (mechanical) ductile fracture brittle fracture Solid materials have long posed special problems for physical characterization, whether...

... AND TECHNOLOGY . Manuscript received by the Materials Division March 1, 2000; revised manuscript received November 17, 2000. Associate Editor: A Rajendran. 01 March 2000 17 November 2000 ductile fracture voids (solid) ductility alloy steel High strength ductile steels constitute...

... Defects , Elsevier, Amsterdam, pp. 333–357. Oyane , M. , 1972 , “ Criteria of Ductile Fracture Strain ,” Bull. JSME , 15 , pp. 1507 – 1513 . Cockroft , M. G. , and Latham , D. J. , 1968 , “ Ductility and the Workability of Metals ,” J. Inst. Met. , 96 , pp. 33 – 39...

... April 1999 14 October 1999 fatigue cracks ductile fracture brittle fracture carbon steel forging In the fatigue crack propagation corresponding to the Paris regime, together with the conventional fatigue mechanisms, other processes of static nature can take place in some...

..., 1999. Associate Technical Editor: G. Ravichandran. 05 August 1998 22 June 1999 adhesives ductile fracture composite materials failure (mechanical) The estimation of fracture behavior of a crack in an adhesive joint or a thin ductile layer constrained by hard adherends...