Kinesiology 2241A/B Lecture Notes - Lecture 24: Cartilage, Chondrocyte, Synovial Fluid
22 Oct 2018
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Stress ( ): the internal force per unit area which results by applying an external load or force. Resistance to deformation- e. g. ball of dough vs. beam. Player went through stress and material couldn"t take the stress therefore broke bone. Compression: pushing together- we are very good at this. Bending: creating first class lever out of bone or piece of tissue. Bending the middle relative to the 2 ends. Shear: 2 forces acting opposite to each other and trying to pull apart. Happens in skiers because body goes one way and ski stays in same direction. Longitudinal strain: change in dimensions of the material divided by its original size. Based on compression and tension, will elongate or press in. Apply a load to one portion of the material and we deform the shape of it in a non symmetrical way- deform one side and leave the other side alone.
