Results 251 to 260 of about 86,765,181 (295)

Multiscale modeling of the brittle to ductile transition

Journal of Nuclear Materials, 2004
A recently introduced method of crack representation as a distribution of three-dimensional Volterra dislocations is used in conjunction with two-dimensional dislocation dynamics simulations to study the brittle to ductile transition behavior of Ferritic Steels.
S.J Noronha, J Huang, N.M Ghoniem
openaire   +1 more source

Plasticity and an Inverse Brittle-to-Ductile Transition in Strontium Titanate

Physical Review Letters, 2001
Physical Review ...
Gumbsch, P., Taeri-Baghbadrani, S., Brunner, D., Sigle, W., Rühle, M.   +4 more
openaire   +3 more sources

Brittle‐to‐ductile transition temperature in InP

physica status solidi (a), 2010
AbstractDeformation experiments were conducted on monocrystalline InP by 4‐point bend tests as well as by conventional and depth‐sensing indentation (DSI) tests. Temperature ranges where the material exhibited a brittle or a ductile behavior were investigated with particular focus on the transition from one deformation mode to the other.
Leonardus B. Bayu‐Aji, P. Pirouz
openaire   +1 more source

The brittle-to-ductile transition in silicon

Acta Metallurgica et Materialia, 1993
In order to better understand the brittle-to-ductile transition in silicon, details of different experimental and numerical studies are discussed. In the concept of elastical stress intensity factors, experiments with four-point-bending bars are not directly comparable with experiments done with tapered-double-cantilever-beam samples.
openaire   +1 more source

Molecular dynamics modelling of brittle–ductile cutting mode transition: Case study on silicon carbide

International Journal of Machine Tools and Manufacture, 2015
The mechanism of brittle-ductile cutting mode transition has received much attention over the past two decades. Due to the difficulties in directly observing the cutting zone during the brittle-ductile cutting mode transition by experimental techniques ...
Sandy To, Gaobo Xiao
exaly   +2 more sources

On the Brittle-to-Ductile Transition Fracture Behavior

1993
Brittle-to-ductile transition behavior is one important aspect in the material behavior of ferritic steels. Because of the many influencing parameters involved, the transition behavior is known to cause great difficulties in its theoretical treatment and modeling as well as in the development of a sufficiently reliable empirical correlation.
T Varga, DH Njo
openaire   +1 more source

Transition from brittleness to ductility in SiC

Journal of Physics: Condensed Matter, 2002
Following an initial elastic strain, a crystal responds to an increasing external stress by either breaking up into pieces, or else plastically changing its shape before failure. In this paper, the different behaviours of a crystal—brittle cleavage versus ductile deformation—are briefly discussed, and the transition from one regime to the other is ...
P Pirouz, M Zhang, J-L Demenet, H M Hobgood   +3 more
openaire   +1 more source

A New Phenomenon—Brittle to Ductile Transition

2016
Most published literature analyzed the elastic modulus of silica aerogels by drawing inspiration from the cellular solids models. For example, Ashby and Gibson (Cellular solids—structure and properties. Cambridge University Press, Cambridge, 1997) describe the open cellular foam model compressive modulus to follow power law dependence on the relative ...
Mahesh Sachithanadam, Sunil Chandrakant Joshi   +1 more
openaire   +1 more source

Prediction of brittle-to-ductile transitions in polystyrene

Polymer, 2003
Abstract In this study it is attempted to predict brittle-to-ductile transitions (BDTs) in polystyrene blends, induced either by an increase in temperature or by a decrease in inter-particle distance. A representative, two-dimensional volume element (RVE) of a polystyrene matrix with 20% circular voids, is deformed in tension.
H.G.H. van Melick, L.E. Govaert, H.E.H. Meijer   +2 more
openaire   +1 more source

Brittle‐to‐Ductile Transition in Silicon Carbide

Journal of the American Ceramic Society, 1989
Observations of the microstructure and creep behavior of two commerical silicon carbides are presented. A combination of techniques has been used to characterize the microstructures. Sequential creep rupture testing has been carried out and scanning electron microscopy used to observe creep‐crack propagation and damage development.
Geoffrey H. Campbell, Brian J. Dalgleish, Anthony G. Evans   +2 more
openaire   +1 more source