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Stress and Strain



< Stress >


Stress is the intensity of force over an area and it can be categorized as shear stress and tensile stress


Shear stress: Applied force is parallel to the cross-section of the object




Tensile stress: Applied force is perpendicular to the cross-section of the object




< Strain >


  • Strain is quantified as change in length over initial length
  • Strain can be induced by both applied force and change in temperature



< Stress and strain relationship and application >


  • Stress-strain curve is used to analyze the deformation characteristics of a material under applied force straining of the object induce stress: refer to the next slide for the curve
  • Stress in a support system is calculated based on strain characteristics of the rigid body