Advanced Structural Geology
Advanced Structural Geology GEOL 542
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This 1 page Class Notes was uploaded by June Gottlieb on Friday October 23, 2015. The Class Notes belongs to GEOL 542 at University of Idaho taught by Simon Kattenhorn in Fall. Since its upload, it has received 18 views. For similar materials see /class/227866/geol-542-university-of-idaho in Geology at University of Idaho.
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Date Created: 10/23/15
Determining the Equilibrium and Compatibilin Equations in Polar Coordinates Stress Eg m we get enurde 6 3quot tlrr e drd8 e a sin 12 9dr 5 4 957 d0Jsinil 765 oosjdr 73 a d9cosdr 0 but for smail angiesi COS dB2 1 and sin dGZ SIB2 We can aiso neglaci ierms with dere and drum compared lo ulherierms The result is asquot er 1 BS u39 dzde dld 0 rdrde 7 awards Dividing through by r dr as and using 5 a we get Summing the lorces in me circumierentlal direction similarly gives Br lac m r 36 Strain Compatibilliy 39 polar I me curvature 1r or me r faces oi a small element decreases and the Haces approach parallelism 39 r example 39 quot aquot i aw i aquot e a and a gt cw We can use these relationships to consider the candilion of strain compatibility in polar coordinalss