forced-fracture-behavior-by-section-thicknessabout 5 cm11122233K1CFracture toughness KcCross-section thickness DToughfractureMixed fractureBrittle fractureDDDIn the case of forced fractures, the fracture behaviorand symptoms depend strongly on section thickness.Separating fracture (brittle)Shear fractures (shear lips),tough fracturePlasticzonePlasticzone"1""1""2""2"45°Section 1-1Wedge-shaped deformation causes shearfracturesHinge-like deformation causes separating fracturesSection 2-2Shear fractureBrittle fracture