Zobrazeno 1 - 10
of 91
pro vyhledávání: '"P.F. Thomason"'
Publikováno v:
Scopus-Elsevier
A three-dimensional finite element model of a compact tension specimen consisting of a Ti-6Al-4V matrix reinforced with unidirectional, continuous SiC fibres under monotonic and cyclic loading has been developed. This has enabled true Coulomb frictio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d60efb7ec21ea6c097c3d6437dedf722
https://doi.org/10.1023/b:frac.0000022283.54186.65
https://doi.org/10.1023/b:frac.0000022283.54186.65
Publikováno v:
Computational Materials Science. 25:166-173
In this study, the influence of thermal expansion mismatch, fibre debonding, interface friction and interface degradation on crack-tip shielding due to crack face bridging is investigated for fatigue of a Ti–6–4 matrix reinforced with unidirectio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f74ffcb7d39d56adacc333ad58e1b8f
https://doi.org/10.1016/s0927-0256(02)00261-6
https://doi.org/10.1016/s0927-0256(02)00261-6
Publikováno v:
Acta Materialia. 50:1453-1466
A multi-scale finite-element (FE) model of a fatigue specimen for an intermetallic matrix/platelet composite is developed to investigate the crack growth micromechanisms and interactions between the matrix, platelets and interfaces in the crack-tip m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f67ad87b3fc3dbc89ab31a154236fac
https://doi.org/10.1016/s1359-6454(02)00003-4
https://doi.org/10.1016/s1359-6454(02)00003-4
Autor:
P.F. Thomason
Publikováno v:
Acta Materialia. 47:3633-3646
A model of ductile spallation fracture is developed from a dynamic void-growth model which takes full account of the effects of material inertia and strain-rate sensitivity on void-growth rates under shock-loading conditions. The void-growth model is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56850e184b4c83b642f9597894e0cca8
https://doi.org/10.1016/s1359-6454(99)00223-2
https://doi.org/10.1016/s1359-6454(99)00223-2
Autor:
P.F. Thomason
Publikováno v:
Acta Metallurgica et Materialia. 41:2127-2134
A two-dimensional plane strain model of void growth and coalescence in a rigid/plastic solid, containing void sizes and spacings which can be highly non-uniform, is developed to investigate the effects of non-uniform distributions of void-nucleating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b31cd5df7fdba2f104f454f361cb3226
https://doi.org/10.1016/0956-7151(93)90382-3
https://doi.org/10.1016/0956-7151(93)90382-3
Autor:
P.F. Thomason
Publikováno v:
Acta Metallurgica et Materialia. 40:241-249
A nucleation-controlled model for the dynamic fracture-toughness KId of materials, with relatively high volume-fractions of sub-micron sized second-phase particles, is developed from the Goods and Brown model of microvoid nucleation. The model can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b0b4fc7158cd85d2d23de9d3ed1674d
https://doi.org/10.1016/0956-7151(92)90299-t
https://doi.org/10.1016/0956-7151(92)90299-t
Autor:
P.F. Thomason
Publikováno v:
Acta Metallurgica. 33:1079-1085
Upper-bound methods are used to obtain close approximations to the constraint factor in a three-dimensional model of the intervoid matrix at incipient plastic limit-load failure. This is the condition where homogeneous deformation can no longer conti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9b057888261a69d98588c0608f00d77
https://doi.org/10.1016/0001-6160(85)90201-9
https://doi.org/10.1016/0001-6160(85)90201-9
Autor:
P.F. Thomason, N.M.A. Eid
Publikováno v:
Acta Metallurgica. 27:1239-1249
A basic understanding of the mechanism of fatigue-crack nucleation in a high-strength steel, under true high-cycle conditions, is developed from microstructural observations of rotating-bending fatigue specimens and theoretical results for the stress
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6522e1c98be8cd01ec8ef3ebc1535c63
https://doi.org/10.1016/0001-6160(79)90140-8
https://doi.org/10.1016/0001-6160(79)90140-8
Autor:
S.K. Chakraborti, P.F. Thomason
Publikováno v:
International Journal of Mechanical Sciences. 16:353-357
The shapes of the entrance and exit slip-lines to the plastic flow zones in a metal-cutting process are obtained by strain etching the polished section of a partly formed chip, which was produced in an incremental cutting operation. The results are c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9b59bda28a854402d409ab88189bbee
https://doi.org/10.1016/0020-7403(74)90009-5
https://doi.org/10.1016/0020-7403(74)90009-5
Autor:
P.F. Thomason
Publikováno v:
Acta Metallurgica. 29:763-777
The mechanics of ductile fracture in metals is treated as a problem of the stability of a rigid non-hardening plastic solid containing a regular distribution of microvoids. A sufficient condition for the stability of incompressible plasticity, in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa193b0782edc24787a29c7c36350625
https://doi.org/10.1016/0001-6160(81)90119-x
https://doi.org/10.1016/0001-6160(81)90119-x