Zobrazeno 1 - 10
of 35
pro vyhledávání: '"De Wen Zhao"'
Publikováno v:
Applied Mathematical Modelling. 55:674-684
A triangular velocity field for central defect closure is proposed in this paper. With the proposed velocity field, the minimum upper bound power is calculated. Then, the stress state coefficient as a function of defect thickness δ and aspect ratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46be1ff1a1e80aaae2c4a3985a804c6d
https://doi.org/10.1016/j.apm.2017.11.012
https://doi.org/10.1016/j.apm.2017.11.012
Publikováno v:
International Journal of Mechanical Sciences. :166-173
Automatic control systems for tandem cold rolling are constantly being applied due to consumers’ requirements: good flatness and surface finish, accurate strip thickness, and consistent metallurgical properties. And those requirements are related t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9485ed2bcf641d8267f41f67eb63af6
https://doi.org/10.1016/j.ijmecsci.2016.02.004
https://doi.org/10.1016/j.ijmecsci.2016.02.004
Publikováno v:
Meccanica. 51:2365-2375
A new continuous velocity field used to analyze central defect closure for heavy plate rolling is proposed by modifying a two-dimensional velocity field. By using the proposed velocity field and mean yield criterion (or called MY criterion for short)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f120d6735c2266cfa9d16d9f7748f170
https://doi.org/10.1007/s11012-016-0371-9
https://doi.org/10.1007/s11012-016-0371-9
Publikováno v:
Meccanica. 51:2099-2110
According to the demand of stream function, a twin parabolic die as a streamline for wire drawing was designed and its kinematically admissible velocity field was then developed. Using the specific energy rate of MY (mean yield) criterion, the mathem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03e10165e899d3509d09f9ade37a0f81
https://doi.org/10.1007/s11012-016-0363-9
https://doi.org/10.1007/s11012-016-0363-9
Publikováno v:
Journal of Manufacturing Processes. 21:190-195
A new linear yield criterion, referred to as average apothem (AA) yield criterion is developed in this paper based on the Tresca and Twin Shear Stress (TSS) yield criteria. This criterion is a piecewise linear function and its locus on the π-plane i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::121b8fcf5d1f6f7247dac68a85054216
https://doi.org/10.1016/j.jmapro.2016.01.002
https://doi.org/10.1016/j.jmapro.2016.01.002
Publikováno v:
Journal of Central South University. 22:4137-4145
In order to overcome the nonlinearity of Mises criterion, a new linear yield criterion with a dodecagon shape of the same perimeter as Mises criterion was derived by means of geometrical analysis. Its specific plastic work rate expressed as a linear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e59657cd659b88a715ff62f432e77c5
https://doi.org/10.1007/s11771-015-2960-5
https://doi.org/10.1007/s11771-015-2960-5
Publikováno v:
Meccanica. 51:1189-1199
A new weighted velocity field for broadside rolling is proposed, in which the effect of double-barrel shape has been taken into account. By using the proposed velocity field and mean yield criterion (or called MY criterion for short), the internal de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9c9dc383ae19d6cdea7004e061893fc
https://doi.org/10.1007/s11012-015-0292-z
https://doi.org/10.1007/s11012-015-0292-z
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 82:1153-1161
Vertical rolling has been widely used in the roughing stand of hot strip rolling to improve the precision of slab width which influences the finished product quality significantly in actual production. Double parabolic dog-bone function model and cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02f2c765540b2f299946da909944e670
https://doi.org/10.1007/s00170-015-7393-7
https://doi.org/10.1007/s00170-015-7393-7
Upper bound analysis of rolling force and dog-bone shape via sine function model in vertical rolling
Publikováno v:
Journal of Materials Processing Technology. 223:91-97
The control of the slab width in actual production is realized by the widely use of vertical rolling (edge rolling). According to the incompressibility condition, the sine function dog-bone model is firstly proposed in this paper for steady state def
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6f00c33292230fba036ef798ddf15c8
https://doi.org/10.1016/j.jmatprotec.2015.03.051
https://doi.org/10.1016/j.jmatprotec.2015.03.051
Publikováno v:
International Journal of Mechanical Sciences. 98:126-131
Rolling force and torque are critical in hot strip rolling process and they affect the setup rolling schedule, the thickness accuracy and the final product profile. In order to obtain the accurate rolling force and torque, a new exponent velocity and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c11559000072ca81286316ca2a190af
https://doi.org/10.1016/j.ijmecsci.2015.04.017
https://doi.org/10.1016/j.ijmecsci.2015.04.017