▶Strength/ Stiffness/ Ductility/ Brittleness (강도/ 강성/ 연성/ 취성) - Strength (강도) Strength is a limit stress that be decided in specific strain area. In 'Stress-Strain curve' the concept for yielding and strain hardening and fracture are introduced. 2023.02.05 - [[Material Dynamics] 재료역학] - Tesile strength test/ Elongation/ Stress-Strain Diagram/ Yielding stress/ Elastic modulus/ True stress/ True s..