Numerical simulation method of coupled thermal and stress in liner casting process

ANSYS is a general-purpose finite element software that can adapt to the coupling analysis of a variety of physical fields. Generally, three numerical simulation methods for the coupling of temperature field and stress-strain field are recommended:

  1. During the stress-strain analysis of liner casting, if the node number and corresponding temperature of finite element model are known, the temperature can be directly applied to the node as a body load through command line and graphical interface.
  2. Indirect analysis. In the first step, the finite element type that only supports thermal analysis is selected to analyze the temperature field of the research physical system. In the second step, the finite element type that supports stress-strain analysis is selected, and then the solution value of the temperature field in the first step is used as the volume load to be indirectly applied to the nodes of the finite element model for stress-strain analysis.
  3. Direct analysis method. ANSYS provides some special element types, which can support the coupling analysis of different physical fields. By referring to the English help manual provided by the software, select the element type with the ability of joint analysis of stress-strain and temperature thermal fields, and only one numerical iteration is required to obtain the numerical results of stress-strain field and temperature field heat transfer at the same time.
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