Tests For Multiple Materials In Laplace And Plate Bending Problems
Author(s)
M. Vable
Abstract
Tests for multiple materials in Laplace and
plate bending problems
M. Vable
Mechanical Engineering-Engineering Mechanics, Michigan
Technological University, U S.A
Abstract
Boundary Element Method has proven to have very good resolution for gradients
of secondary variables such as heat in conduction problems and moments and
shear forces in plate bending problems. Strong gradients in secondary variables
can exist near the interface of two materials, particularly when material
properties change significantly. These gradients in secondary variables due to
changes in material properties can interact with the gradients fiom geometric
features such as corners and cracks. Experience with homogenous material has
established that good resolution of gradients require a graded mesh, but mesh
refinement techniques are difficult to implement for multiple materials. The
complexity in the results due to factors described above make most of the
available tests for multiple material problems less than desirable
Keywords
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