Abstract
Seepage is the most parameter in water management safety and in stable agricultural. This seepage is passed through the cracks that are present to some degree in hydraulic structures. They may exist as basic defects in the constituent materials or may be induced in construction or during service life. To avoid such failure in concrete dams, safety would be an important factor. Over-design carries heavy penalty in terms of excess weight. So the fracture mechanics theory is a principal necessity of evaluating the stability of such crack propagation. For the process of crack propagation analysis in concrete structures, there are two general models: discrete crack and smeared crack. This study surveys the crack propagation in concrete gravity dams based on discrete crack methods. Moreover, we use a program provided specifically for this purpose.
Highlights
Seepage is the most parameter in water management safety
Fracture mechanics theory is the fundamental requirement of assessing the stability of crack propagation
Crack model: Fracture is an important mode of deformation and damage in both plain and unreinforced concrete structures
Summary
Seepage is the most parameter in water management safety. This seepage is passed through the cracks that are present to some degree in hydraulic structures. The phenomenon of failure by catastrophic crack propagation in structural materials poses problems of design and analysis in many fields of engineering. III: In which the crack surfaces slide over each other in the z direction, but where the deformations are skew-symmetric about the x-y and x-z planes (Fig. 3). The parameters KI, KII and KIII are shown as the stress intensity factors corresponding to the three cracking modes and they characterize the magnitude of the crack tip stress field.
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