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Review from LAB #3. Grain-scale shear sense. Homework examples delta-type. Homework examples S-C Mylonite. C. S. Homework examples sigma-type. LAB #4. The Traction Vector and Stress Tensor. From Force to Stress. Traction. Force. Stress at a Point. Surface Stress. The Stress Tensor.
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LAB #4 The Traction Vector and Stress Tensor
From Force to Stress Traction Force Stress at a Point Surface Stress
Sign Convention Positive Shear Stress Determined by direction of traction acting on negative coordinate face Negative Shear Stress Tractions are positive in negative coordinate direction