Fig. 4From: Depth-dependent ratcheting strains of young and adult articular cartilages by experiments and predictionsStress–strain hysteresis loop with stress amplitude of 1 MPa and stress rate of 2 MPa/s. a Young cartilage; b adult cartilage; c young cartilage under different cycles; d adult cartilage under different cycles; e young cartilage under the first two cycles; f adult cartilage under the first two cyclesBack to article page