SEARCH Articles Figures Tables Crack Mouth Opening Displacement Crack Mouth Opening Displacement CMOD) Crack Opening Displacement (COD Crack mouth opening Crack opening displacement Crack opening stretch Crack tip opening displacement Crack tip opening displacement CTOD) Cracking ring-opening Cracks of minimal opening Cracks of zero opening Critical crack opening displacement Existence of minimal opening cracks Fatigue crack opening Fracture crack opening displacement Fracture toughness crack opening displacement Fully Open Cracks that are Stationary or Growing Ratio of Crack Opening Dependency Ratio of Crack Opening Dependency RCOD) Tough polymers crack opening displacement Wide-opened crack