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Defining Variable in Domain with respect to a Boundary Normal and Tangential direction
Posted 2017年10月4日 GMT+8 09:18 Geometry, Parameters, Variables, & Functions, Structural Mechanics 1 Reply
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Hello,
I want to define a variable to be used in the geometry domain. This variable is a function of the direction of the tangent or normal of a boundary. I know from Comsol that the normal of a boundary is defined as nX, nY, and nZ for the material coordinates. I want to define a variable, say Young's Modulus E, that is only acted along the normal with respect to the boundary (i.e. E is anisotropic and acted along the normal of the boundary, and zero for other directions).
It is easy to define if the geometry is simple, such as a cube or a cylinder, by just using a number or by defining cylindrical coordinate system. But my geometry is of irregular shape. Can anybody help me on how to define the domain variable with respect to a boundary normal or tangential direction? Perhaps using model couplings?
Thank you, Jamil
Hello Mohd Jamil Mohamed Mokhtarudin
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Hi Jamil
Did you manage to solve this? I'm having the same problem.