Gj. Ruddock et Ajm. Spencer, EFFECT OF COOLING RATE ON THE SOLIDIFICATION OF A CYLINDRICAL CHANNELSECTION, Composites. Part A, Applied science and manufacturing, 29(1-2), 1998, pp. 199-206
This paper presents a model of solidification for a fibre-reinforced c
ircular cylindrical channel section in plane strain. The material is t
reated as a thermoelastic orthotropic solid in the solid phase and as
an anisotropic viscous fluid in the fluid phase. Cooling from a curved
surface causes a solidification front to move radially through the th
ickness until solidification is complete. Deformation which occurs in
the liquid phase becomes 'locked in' at solidification, thus affecting
the shape and residual stress in the final solid section; these affec
ts are quantified. It is found that part of this residual deformation
is proportional to the cooling rate, and the effects of cooling from t
he inside and from the outside are compared. For a very thin sector th
e residual deformation is independent of the rate and direction of coo
ling, but for a sector with small internal surface radius both the rat
e and the direction of cooling have a pronounced effect. (C) 1997 Else
vier Science Limited.