Zobrazeno 1 - 10
of 21
pro vyhledávání: '"T. K. Hellen"'
Publikováno v:
Fatigue & Fracture of Engineering Materials & Structures. 18:971-979
The service life of gears with a crack in a tooth root can only be determined by numerical methods. An initial fatigue crack is assumed on the tensile side of a tooth root at the site of maximum reference stress and is assumed to commence growth perp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b0027a476edcb2acc44f4d4e971dc5c
https://doi.org/10.1111/j.1460-2695.1995.tb00921.x
https://doi.org/10.1111/j.1460-2695.1995.tb00921.x
Autor:
T. K. Hellen
Publikováno v:
Fatigue & Fracture of Engineering Materials and Structures. 14:627-636
Knowledge of the creep behaviour of materials used in structures which operate for many years is of fundamental importance when assessing the integrity of such structures. The additional consideration of cracks which may occur in metals is also impor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6f5870c022a96faf7b457bc4b2a10d2
https://doi.org/10.1111/j.1460-2695.1991.tb00692.x
https://doi.org/10.1111/j.1460-2695.1991.tb00692.x
Autor:
W. S. Blackburn, T. K. Hellen
Publikováno v:
International Journal of Fracture. 16:411-429
The finite element method is applied to a series of three dimensional cracked configurations as proposed at the Three Dimensional Fracture Analysis Workshop at Battelle Columbus, in 1976. Results for these cases are presented showing crack opening di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ef66f05e1969cca2188ba8c02297ea8
https://doi.org/10.1007/bf00016581
https://doi.org/10.1007/bf00016581
Autor:
T. K. Hellen
Publikováno v:
International Journal for Numerical Methods in Engineering. 9:187-207
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb71dfde4893f77c4a81df8dd184f1cb
https://doi.org/10.1002/nme.1620090114
https://doi.org/10.1002/nme.1620090114
Publikováno v:
International Journal of Fracture. 21:49-66
TheJ * integral approach to post yield fracture analysis is compared with a wide variety of other methods by means of experimental testing of specimens invalid in the sense of ASTM. The significance of J* and its relationship to other integrals is di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::731901895788d74b37061cbd191c1152
https://doi.org/10.1007/bf01134199
https://doi.org/10.1007/bf01134199
Autor:
T. K. Hellen
Publikováno v:
International Journal for Numerical Methods in Engineering. 19:1713-1731
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aec0ff955f4c3146f785fc286aef0af
https://doi.org/10.1002/nme.1620191110
https://doi.org/10.1002/nme.1620191110
Autor:
W. S. Blackburn, T. K. Hellen
Publikováno v:
International Journal of Fracture. 32:185-199
The elastic-plastic stress analysis of a centre-cracked plate subjected to two types of loading is considered using the non-linear BERSAFE finite element system. The loading includes both uniaxial tension and a quadratic thermal gradient across the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c830c45b9a0c398a550705541ecb88b2
https://doi.org/10.1007/bf00018352
https://doi.org/10.1007/bf00018352
Autor:
T. K. Hellen
Publikováno v:
International Journal for Numerical Methods in Engineering. 22:133-151
The semiloof shell element is the final product of years of research by Professor Irons and his colleagues, during which period the three-dimensional quadratic displacement isoparametric elements were successively modified into Ahmad thick shells, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7340e232940606af3f27672fa44eac93
https://doi.org/10.1002/nme.1620220110
https://doi.org/10.1002/nme.1620220110
Publikováno v:
International Journal of Fracture. 13:183-199
An integral has been proposed for a non-elastic material whose value is determined by the magnitude of the singularities at the tip of a crack but which may be evaluated mainly far away from the crack, where the state of deformation may be determined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eda85545d5776db8c9267af064f9f54a
https://doi.org/10.1007/bf00042559
https://doi.org/10.1007/bf00042559
Autor:
W. S. Blackburn, T. K. Hellen
Publikováno v:
International Journal for Numerical Methods in Engineering. 11:211-229
Finite element methods are used to calculate the stress intensity factors for three-dimensional geometries containing a number of depths of crack subjected to various loads. Special elements are used at the tip to represent the variation of the displ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b59b5a23330cdecb2aa9300c3ed6c67e
https://doi.org/10.1002/nme.1620110202
https://doi.org/10.1002/nme.1620110202