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Abstract: Thermal
deformation problem in the continuous casting of slab subjected to the
thermal loading due to the temperature gradient along the solidified
shell thickness is investigated. Based on the reciprocal theorem of work
or Betti-Maxwell’s reciprocal theorem and the superposition principle,
the deflection expressions for a rectangular plate with two opposite
edges simply supported and the other two opposite edges clamped under
the action of the uniformly distributed load and non-uniform temperature
field are derived respectively, and the meaning of each term in the
deflection expression obtained by the reciprocal theorem of work is
explained. Then the practical example is given to calculate the thermal
deformation and the bulging deformation of the solidified shell under
three tension speeds. Above research is useful for analyzing the bulging
deformation in the continuous casting of slab under the static pressure
of molten steel and the thermal loading due to the temperature gradient
along the solidified shell thickness.
Key words: Continuous
casting of slab Thermal deflection Superposition method
CLC No: TF777.1
国家自然科学基金(50575180)、陕西省科技攻关(2004K06-G23)和西安市科技攻关(GG05026)资助项目. Received
20050414,
received
in revised form
20050908
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