2004 · 12 citations · 5 references
EngineeringMaterials EngineeringMaterials ScienceApplied MechanicsMechanical Behavior Of MaterialsRock MechanicsBrittle Failure Of RockDamage MechanicsFracture InitiationFracture MechanicsFracture PropagationRock FractureBrittle FailureCracksDamage EvolutionFracture Under ImpactFracture Under Impact LoadingImpact Fracture AnalysisMaterial Fracture BehaviorParticle Dynamics
Summary A theoretical model describing impact fracture of rocks caused by percussive drilling is presented. The process is modeled using particle dynamics (molecular dynamics) approach where a special interaction law for brittle materials is formulated. Relations between the microscopic quantities of the model and the macroscopic mechanical properties have been established. The material fracture and cracks formation under the periodic set of inserts are investigated.
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