Continuous dynamic recrystallization during severe plastic deformation

Autor: Mattia Bacca, Robert M. McMeeking, David R Hayhurst

Publikováno v: Bacca, M, Hayhurst, D R & McMeeking, R M 2015, ' Continuous dynamic recrystallization during severe plastic deformation ', Mechanics of Materials, vol. 90, pp. 148-156 . https://doi.org/10.1016/j.mechmat.2015.05.008

Severe plastic deformation (strains > 100%) has been shown to create significant grain refinement in polycrystalline materials, leading to a nanometric equiaxed crystalline structure for such metals as aluminum, copper and nickel alloys. This process

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66898be8a5105de312d4d398d0029586
https://doi.org/10.1016/j.mechmat.2015.05.008

Adaptation of the simulated annealing optimization algorithm to achieve improved near-optimum objective function values and computation times for multiple component manufacture

Autor: Atef Afifi Afifi, David R Hayhurst, Wajid Ali Khan

Publikováno v: The International Journal of Advanced Manufacturing Technology. 60:437-451

The paper concerns the development of the Simulated Annealing Algorithm (SAA) for the sequencing of cutter tool movement in machine tools capable of manufacturing many components, located on a box-like jig/pallet, in a single setting using a multiple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b6db1338441be76b1bec771392ee32b
https://doi.org/10.1007/s00170-011-3620-z

Non-productive tool path optimisation of multi-tool part programmes

Autor: Wajid Ali Khan, David R Hayhurst, Afef Afifi Afifi

Publikováno v: The International Journal of Advanced Manufacturing Technology. 55:1007-1023

The paper concerns the development of a computer-aided optimisation package for the minimisation of the residence time of a multi-component pallet being manufactured in a machining centre with a multi-tool facility. A methodology has been developed t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::643cb3a0f64f9f2e52c193197a8bf484
https://doi.org/10.1007/s00170-010-3117-1

Reduced numerical solution times for combined boundary‐initial value problems using parallel computing

Autor: Behnam Salimi, David R Hayhurst

Publikováno v: Engineering Computations. 27:746-772

Purpose — The purpose of this paper is to seek improved solution techniques for combined boundary‐initial value problems (IVPs) associated with the time‐dependent creep deformation and rupture of engineering structures at high temperatures and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b816acec2877b701b21cab96c4499b3
https://doi.org/10.1108/02644401011062126

Verification of 3-D parallel CDM software for the analysis of creep failure in the HAZ region of Cr–Mo–V crosswelds

Autor: David R Hayhurst, R J Hayhurst, F Vakili-Tahami

Publikováno v: International Journal of Pressure Vessels and Piping. 86:475-485

The finite element-based Continuum Damage Mechanics (CDM) software DAMAGE XXX has been developed: to model high-temperature creep damage initiation, evolution and crack growth in 3-D engineering components; and, to run on parallel computer architectu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5dd932717b521d66fdb0980bf259de1
https://doi.org/10.1016/j.ijpvp.2009.04.015