MAE486_Fall11_L18_S

Consider twodimensional case finitedierence method

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Unformatted text preview: Consider the example of a cylindrical bar of length L with deformaAon δ under force P. What is the scale factor? •  What are the variables? •  Choose repeaAng variables: •  Find pi groups: Geometric Similarity (cont’d) •  Find similarity relaAonship •  How to use the above relaAon in model study? –  Suppose we wish to use a plasAc model, Em=0.4 x 10^6 lb/in2 to model a steel bar, Ep=30 x 10^6 lb/in2, loaded to 50000 lbs, if the...
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