Natural SciencesMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsMetallic MaterialsStructural MaterialsFracture MechanicsFracture ResistanceFracture ToughnessMechanical CharacterizationMechanical PropertiesStrength Of MaterialsBrittle FailureBrittle Failure CriterionBrittle Fracture BehaviorBrittle Fracture TheoryBrittleness