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A Preview of Theories for Static Fracture Propagation in Rock
General Description of Fontana Dam and Extent of Cracking
Evaluation of the Crack Mechanism in Fontana Dam
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alignment surveys assumed behavior Cartesian coordinate Chapter computed concrete temperature crack approached crack extension crack increment crack initiated crack intersecting crack mechanism crack predicted crack region crack tip crack was discovered cross-section curved blocks curved monoliths determine dimensional displacement pattern downstream face drainage gallery due to thermal energy release rate extent of cracking face of monoliths finite element analysis finite element mesh finite element method Fontana Dam foundation fracture analysis fracture mechanics fracture toughness hydrostatic inches upstream induced concrete growth Kj and Kjj linear elastic longitudinal thrust maximum modulus of rupture monolith 19 Photograph of downstream plane strain plane stress post-tension loading Principal tensile stresses pure Mode rectangular Cartesian coordinate shown in Fig shows stress intensity factors superimposed tendons theory thermal expansion thermal growth factor thermally induced concrete three-dimensional analysis transverse tensile stresses two-dimensional analysis upstream deflection upstream face upstream-downstream displacements values of Kj