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The _____ can be obtained even with coarser meshes by plotting and extrapolating.

(a) Minimum stresses

(b) Minimum strain

(c) Maximum stresses

(d) Maximum strain

I have been asked this question in an internship interview.

Asked question is from Two Dimensional Problem Modelling and Boundary Conditions in portion Two Dimensional Problems using Constant Strain Triangles of Finite Element Method

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Right choice is (c) Maximum stresses

The explanation is: Coarse mesh is more accurate in getting values. The smaller elements will better represent the distribution. Better estimates of maximum stress may be obtained even with coarser meshes. Coarse meshes are recommended for initial trails.

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