Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Y.F. Al-Obaid"'
Autor:
Y.F. Al-Obaid
Publikováno v:
Computers & Structures. 59:665-689
An automated procedure based on available empirical formulae for penetration and perforation in steel objects is developed. A computer program is written in FORTRAN 77 to solve these empirical formulae using various material properties and dropped he
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5010744a41c48204aae3f565288487fa
https://doi.org/10.1016/0045-7949(95)00292-8
https://doi.org/10.1016/0045-7949(95)00292-8
Autor:
Y.F. Al-Obaid
Publikováno v:
Engineering Fracture Mechanics. 51:19-25
In this paper an attempt has been made to study the effect of shot peening on stress corrosion cracking of 2205-Duplex stainless steel. Cast steel shot was selected to be the peening media. Specimens of 2205-Duplex stainless steel were tested in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e2c1377ef5422b5d87ca36f8aed89a6
https://doi.org/10.1016/0013-7944(94)00213-2
https://doi.org/10.1016/0013-7944(94)00213-2
Autor:
Y.F. Al-Obaid
Publikováno v:
Mechanics of Materials. 19:251-260
Shot peening is a process of cold-working the surface of structural or machine parts by involving multiple and progressively repeated impact. Interaction between shot and target is discussed and the sequence of events during the loading and unloading
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7ca85e0a580f17c140a807bfdd66674
https://doi.org/10.1016/0167-6636(94)00036-g
https://doi.org/10.1016/0167-6636(94)00036-g
Autor:
Y.F. Al-Obaid
Publikováno v:
Computers & Structures. 52:693-703
This paper gives an analysis of a dynamic shot impact on a steel target by using a three-dimensional dynamic finite element analysis in which provision is made for the simulation of impact loads, plasticity and residual stress. An assessment is made
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57c806524de9c12b297f9f1f4a524295
https://doi.org/10.1016/0045-7949(94)90350-6
https://doi.org/10.1016/0045-7949(94)90350-6
Autor:
Y.F. Al-Obaid
Publikováno v:
Engineering Fracture Mechanics. 47:93-99
This paper gives a full analysis of the local failure of a steel target plate subjected to shot impact by using three-dimensional dynamic finite element analyses in which provision is made for the simulation of impact loads, plasticity and cracking o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b81da38a2da842ef0ee479dbf5427626
https://doi.org/10.1016/0013-7944(94)90240-2
https://doi.org/10.1016/0013-7944(94)90240-2
Autor:
Y.F. Al-Obaid
Publikováno v:
Engineering Fracture Mechanics. 43:461-469
This paper discusses the problem of determining the characteristic values in ductile fracture mechanics on the basis of the fracture toughness, K Ic , for a double-sided spiral submerged arc weld pipeline material. Special interest was directed towar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e2bc60aa72a23fca7fcfe66b86b3e20
https://doi.org/10.1016/0013-7944(92)90114-t
https://doi.org/10.1016/0013-7944(92)90114-t
Autor:
Y.F. Al-Obaid
Publikováno v:
Computers & Structures. 40:1451-1460
This paper gives an automated simulation of dynamic non-linearity to shot-peening mechanics. Three-dimensional constitutive material law expressed in the stress invariants is used along with the nonlinear analysis based on the concept of initial stre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2245492eecf73539bea84fccef0697d5
https://doi.org/10.1016/0045-7949(91)90415-i
https://doi.org/10.1016/0045-7949(91)90415-i
Autor:
Y.F. Al-Obaid
Publikováno v:
Engineering Fracture Mechanics. 36:397-402
A finite element method is presented for the integrity assessment of turbine rotors. Experimental tests have been carried out on models. The analytical and experimental results are compared and plotted in order to assess the threshold stress integrit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9954222d81a8bfac74c6d158e472e8ad
https://doi.org/10.1016/0013-7944(90)90287-q
https://doi.org/10.1016/0013-7944(90)90287-q
A number of books and research papers have been published on trauma and biomechanics.Theyhavesofarnotbeenrealisticallyintegrated.Thebasicaim ofthisbookistopresentauni?edapproachbetweentheengineeringandm- ical professions. The available engineering an
Autor:
Y.F. Al-Obaid
Publikováno v:
Engineering Fracture Mechanics. 23:875-882
A finite-element method is presented for the corrosion crack growth in a low-ductility Zircaloy tube under temperatures above 600°C. The analytical results produced from this analysis compare well with those obtained from especially conducted test r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb5114cb632d8f6b678006831ee07ae6
https://doi.org/10.1016/0013-7944(86)90098-6
https://doi.org/10.1016/0013-7944(86)90098-6