...Adam J. Smith; Hannah L. Maxwell; Hadi Mirmohammad; Owen T. Kingstedt; Ryan B. Berke Macro-scale ductility is not an intrinsic material property but is dependent on the overall geometry of the specimen. To account for variety in specimen geometries, multiple ductility scaling laws have been...

... a pronounced pseudoductility. In contrast, larger specimens behave in a more brittle way, with the size effect on nominal strength closer to that predicted by LEFM. This transition from quasi-ductile to brittle behavior is associated with the size of the fracture process zone (FPZ), which is not negligible...

...X. X. Chen; P. D. Wu; D. J. Lloyd; J. D. Embury; Y. Huang The effect of cladding a ductile layer on necking and fracture in sheet metals under plane strain tension is studied numerically using the finite element method based on the Gurson damage model. It is demonstrated that the cladding increases...

... of strain equivalence and they were proposed by Lemaitre and Chaboche ( 1990, Mechanics of Solid Materials ), Wang ( 1992, “Unified CDM Model and Local Criterion for Ductile Fracture—I. Unified CDM Model for Ductile Fracture,” Eng. Fract. Mech., 42, pp. 177–183 ), Chandrakanth and Pandey ( 1995...

... are about 1.5 times greater than that of the Sn37Pb solder, and also their ductility are significantly greater than that of the Sn37Pb. Based on the experimental data, strain rate dependent Johnson–Cook models for the three solders were derived and employed to predict behaviors of solder joints in a board...

..., I.A.B.S.E., Zürich, pp. 17–30 ; Carpinteri, A., 1984, “Stability of Fracturing Process in R.C. Beams,” J. Struct. Engng. (A.S.C.E.), 110, pp. 544–558 ) for the analysis of brittle matrix composites with discontinuous ductile reinforcements under the condition of repeated bending loading. In particular, we...

...Patricia M. Dardati; Luis A. Godoy; Diego J. Celentano This paper presents a new micro-macro approach for the thermo-microstructural behavior of the solidification process of an eutectic ductile cast iron. The thermal balance is written at a macroscopic level and can take into account both...

...Richard M. Christensen Three fundamentally different failure theories for homogeneous and isotropic materials are examined in both the ductile and brittle ranges of behavior. All three theories are calibrated by just two independent failure properties. These three are the Coulomb-Mohr form...

...Ting Zhu; Ju Li; Sidney Yip Minimum energy paths for unit advancement of a crack front are determined by reaction pathway sampling, thus providing the reaction coordinates for the analysis of crack tip mechanics in ductile and brittle materials. We compare results on activation energy barrier...

...N. Triantafyllidis; M. D. Nestorović; M. W. Schraad For ductile solids with periodic microstructures (e.g., honeycombs, fiber-reinforced composites, cellular solids) which are loaded primarily in compression, their ultimate failure is related to the onset of a buckling mode. Consequently...

... work by the authors. This paper extends the isotropic hyperelastic VIB model to ductile materials by incorporating rate effects and hardening behavior of the material into a finite deformation framework. The hyperelastic VIB model is formulated in the intermediate configuration of the multiplicative...

... September 2003 20 January 2004 09 11 2004 plates (structures) plastic deformation finite element analysis compressive strength work hardening bending ductility Clamped sandwich plates are representative of the structures used in the design of commercial and military vehicles...

...Dhirendra V. Kubair; Philippe H. Geubelle; John Lambros The dominant and higher-order asymptotic stress and displacement fields surrounding a stationary crack embedded in a ductile functionally graded material subjected to antiplane shear loading are derived. The plastic material gradient...

... mechanism map. It is shown that the effect of clamped boundary conditions is to drive the deformation mechanism towards plastic stretching of the face sheets. Consequently, the ultimate strength and level of energy absorption of the sandwich beam are set by the face sheet ductility. Limit load analyses have...

...Viggo Tvergaard Numerical calculations are carried out for a test specimen geometry used by Ashby et al. to study effects of ductile reinforcements in brittle materials. A lead wire well bonded to an outer glass cylinder was used to investigate crack bridging by ductile particles. The main focus...

...V. Madhavan, Assoc. Mem. ASME; S. Chandrasekar, Mem. ASME; T. N. Farris, Mem. ASME A case is made for the consideration of single-point machining of ductile metals as a special type of wedge indentation process. A general-purpose finite element analysis of machining using iterative rezoning...