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Brittle‐ductile transitions in polyethylene
Polymer Engineering & Science, 2002AbstractThe failure mode of a number of polyethylenes has been studied under predominantly plane strain conditions. Square section samples, notched on all sides, have been tested in tension to failure over a range of crosshead speeds and temperatures. Integration under the subsequent load displacement curve has allowed the total energy, energy to peak ...
P. A. O'connell +2 more
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The brittle-ductile transition in PVC
2022This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Role of the brittle–ductile transition on fault activation
Physics of the Earth and Planetary Interiors, 2011Abstract We model a fault cross-cutting the brittle upper crust and the ductile lower crust. In the brittle layer the fault is assumed to have stick–slip behaviour, whereas the lower ductile crust is inferred to deform in a steady-state shear. Therefore, the brittle–ductile transition (BDT) separates two layers with different strain rates and ...
DOGLIONI, Carlo +3 more
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Research into brittle/ductile transition temperature
Scripta Metallurgica, 1989Etude de plusieurs temperatures de transition dans la rupture de l'acier doux. Analyse des resultats a l'aide d'un modele de clivage et determination d'une temperature caracteristique pour la rupture fragile a basse temperature de l'acier ...
Z. Huang, M. Yao
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Brittle-ductile transition in rocks
Journal of Geophysical Research, 1968The deformational characteristics of 2 limestones, one gabbro, and one dunite have been investigated as a function of confining pressure. It was found, that friction of these rocks and friction of granite and serpentinite studied elsewhere are nearly identical, and that the brittle-ductile transition pressure is simply the pressure at which the stress ...
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The Brittle-Ductile Transition of Silicon
1987At the preceding workshop 1981 on Corsika one of the authors analysed the early measurements of St. John (1) on the b/d transition of pre-cleaved Si single crystals. The analysis was based on the assumption that dislocations can be easily produced at the crack-tip in an otherwise perfect crystal.
M. Brede, P. Haasen
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1978
So far we have been concerned mainly with brittle behaviour culminating in gross brittle fracture. However, under suitable conditions, rock can exhibit ductility. This is an aspect of its behaviour that becomes of central importance in many geologic situations but which may also have relevance in some engineering contexts.
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So far we have been concerned mainly with brittle behaviour culminating in gross brittle fracture. However, under suitable conditions, rock can exhibit ductility. This is an aspect of its behaviour that becomes of central importance in many geologic situations but which may also have relevance in some engineering contexts.
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Brittle-ductile transition of polymer blends
Journal of Polymer Research, 1995Based on the Ludwik-Davidenkov-Orowan theory, a new criterion of BDT for polymer blends is proposed. In this approach fracture stress (σb) and shear yielding stress (σy) governing the brittle-ductile transition (BDT) of polymer blends is combined into a dimensionless group as Da = σb 2/σy 2.
Su-Ping Lyu +2 more
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On the brittle-ductile transition pressure
Acta Metallurgica, 1967Abstract A theory for the change from brittle to ductile fracture behaviour with increasing superimposed hydrostatic pressure is proposed, and is extended to account for the effect of temperature on the transition. The theory agrees well with empirical relationships developed previously by other workers, and shows that an effect due to grain size is ...
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