Moment distribution

2018 ◽  
pp. 314-345
Keyword(s):  
2006 ◽  
Vol 05 (04n05) ◽  
pp. 627-631 ◽  
Author(s):  
M. J. SUN ◽  
G. P. ZHAO ◽  
J. LIANG ◽  
G. ZHOU ◽  
H. S. LIM ◽  
...  

A simplified micromagnetic model has been proposed to calculate the hysteresis loops of nanostructured permanent magnets for various configurations, including thin films, exchange-coupled double-layer systems and bulk materials. The reversal part of the hysteresis is based on the Stoner–Wohlfarth coherent rotational model and the coercivity mechanism is due mainly to the motion of the transition region (a domain wall like magnetic moment distribution in the grain boundary). The elements of nucleation and pinning models are also incorporated.


1999 ◽  
Vol 35 (5) ◽  
pp. 3847-3849 ◽  
Author(s):  
B.C. Choi ◽  
A. Samad ◽  
W.Y. Lee ◽  
S. Langridge ◽  
J. Penfold ◽  
...  

1976 ◽  
Vol 77 (1) ◽  
pp. 309-318 ◽  
Author(s):  
F. Sacchetti ◽  
P. De Gasperis ◽  
F. Menzwger

1985 ◽  
Vol 111 (2) ◽  
pp. 453-466 ◽  
Author(s):  
Stefan J. Medwadowski
Keyword(s):  

1999 ◽  
Author(s):  
Jian Cao ◽  
Zhihong Liu ◽  
Wing Kam Liu

Abstract A straight flange problem is investigated with the expectation that this will lead to a better understanding of the deformation mechanism and to more complicated flanging problems. The “in-die” shape of the part is subdivided into a number of segments and individual springback of each segment is investigated, by releasing the elastic energy element by element, using the Finite Element Method (FEM). Typical distribution of the springback angle along the blank is obtained and found to be quite different from the widely used constant springback assumption for the curved part of the flange. A new model incorporating a non-uniform moment distribution at the curved part is proposed which reflects the above observation. Explicit analytical formulae are derived and the analytical predictions match with the experimental results very well.


1961 ◽  
Vol 87 (7) ◽  
pp. 313-319
Author(s):  
Paul H. Reimer ◽  
Miguel Angel Macias-Rendón

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