Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Phiroze Kapadia"'
WAVE PATTERN PRODUCED BY A HEAT SOURCE MOVING WITH CONSTANT VELOCITY ON THE TOP OF AN INFINITE PLATE
Publikováno v:
Journal of Thermal Stresses. 26:767-777
Within the framework of linear, isotropic elasticity theory the wave pattern produced by a heat source moving with constant velocity on the top of an infinite plate is computed. Both the transient effects associated with the initial conditions and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f64e0a9fae873be221191bcc76d63d52
https://doi.org/10.1080/01495730390203545
https://doi.org/10.1080/01495730390203545
Autor:
William S.O. Rodden, John Dowden, P Solana, Duncan Paul Hand, Phiroze Kapadia, Julian D. C. Jones, Sean S. Kudesia
Publikováno v:
Optics Communications. 191:97-112
A self-consistent time dependent model for the laser drilling of metals is provided, including the analysis of ablation mechanisms, liquid ejection and heat conduction. The energy balance relation assumed to be valid at the ablation front links all t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9de9386359f8cc8b332e072aa36c41d0
https://doi.org/10.1016/s0030-4018(01)01072-0
https://doi.org/10.1016/s0030-4018(01)01072-0
Publikováno v:
Journal of Physics D: Applied Physics. 33:1739-1746
Much analytical work exists dealing with distortion in thin metallic sheets produced by moving heat sources. We consider here the case of the distortion generated in a weld pool whose cross section is in the form of an ellipse in a thin sheet of meta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b2b75f0e50da6ee795b39e6783c9a73
https://doi.org/10.1088/0022-3727/33/14/314
https://doi.org/10.1088/0022-3727/33/14/314
Publikováno v:
Journal of Physics D: Applied Physics. 32:2529-2536
The problem of the steady heat transfer in a hollow cylinder subject to intense heating on its walls is studied and solved analytically. The heat supplied to the inner cylinder wall is supposed to be generated by the action of a laser beam on a gas c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8c57506c480dd9d2f10fd800a54d44a
https://doi.org/10.1088/0022-3727/32/19/309
https://doi.org/10.1088/0022-3727/32/19/309
Publikováno v:
Journal of Physics D: Applied Physics. 32:168-175
Two thin elastic plates in the form of infinite half planes are joined together as a butt weld by a moving general heat source travelling at constant speed. The stresses along the weld direction and the distortion of the unwelded open end resulting f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f2624ed4a97065ca56a02e33e5684e7
https://doi.org/10.1088/0022-3727/32/2/015
https://doi.org/10.1088/0022-3727/32/2/015
Publikováno v:
Journal of Physics D: Applied Physics. 31:3446-3456
A spherical system of coordinates is used to solve the time-dependent heat-conduction equation for inside a conical cathode, whose surface is subjected, during arc welding processes, to complicated thermal heat-exchange effects. These arise from a va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36ed218aff6fbad9db9682bc0c65e2b7
https://doi.org/10.1088/0022-3727/31/24/007
https://doi.org/10.1088/0022-3727/31/24/007
Autor:
Phiroze Kapadia, John Dowden
Publikováno v:
Journal of Laser Applications. 10:219-223
Recent experiments have shown that a laser beam may be used to guide the path of an electric arc over considerable distances. Simple physical ideas can be used to describe this process and obtain estimates of laser power needed and the characteristic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f46fecd4f8cad298079630251fce45c1
https://doi.org/10.2351/1.521855
https://doi.org/10.2351/1.521855
Publikováno v:
Journal of Laser Applications. 10:170-173
Deep penetration laser welding of metals generates a keyhole surrounded by a molten region which forms the weld on freezing. Mathematical models of the process produce relationships between the process parameters to provide an effective simulation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc0b1fed860cd942fa5ac94415bf65e8
https://doi.org/10.2351/1.521847
https://doi.org/10.2351/1.521847
Publikováno v:
Scopus-Elsevier
The dependence of the voltage of a stable plasma arc on the current, arc length and pressure has been fitted to experimental data with the arc operating in positive and negative resistance modes. A general justification for this behaviour is provided
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0af7e20bc3a30899d29bfefee6f9139b
https://doi.org/10.1243/0954406981521006
https://doi.org/10.1243/0954406981521006
Publikováno v:
Journal of Physics D: Applied Physics. 30:2304-2312
In the welding of metal sheets by lasers or electric arcs, a problem of considerable interest and importance is the formation of stresses and strains in the material undergoing the welding process. This paper investigates the process making use of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf24393f4671829bf8faae54887327d8
https://doi.org/10.1088/0022-3727/30/16/008
https://doi.org/10.1088/0022-3727/30/16/008