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Structural Mechanics - II

Topic 1: Principal Stresses And Strains

Principle stresses and strain for 2-D problems
      Basic Definitions
            Normal Stress
            Shear Stress (q)
            Principal Plane
            Principal Stress
            Major Principal Stress (σP1)
            Major Principal Plane
            Minor Principal Stress (σP2)
            Minor Principal Plane
            Resultant Stress
            Angel of obliquity (Φ)

Normal and shear stresses on inclined plane
      Location of principal plane and their magnitude

Mohr's circle method
            Steps in Mohr’s Circle

Topic 2: Direct and Bending Stresses

Combined direct and bending stresses
            Direct Stresses (σo)
Eccentric load on short columns
            Eccentric Loading
            Eccentricity(e)
            BendingStresses (σb)
            SectionModulus (Z)
            ResultantStresses (σr)
       Combined Stress distribution at the base
            Case– 1(σo>σb)
            Case– 2(σo<σb)
            Case– 3(σo=σb)
            No tension condition
Kern of a section
      Limit of eccentricity
            Limit of eccentricity for solid rectangular section
            Limit of eccentricity for solid circular section
            Limit of eccentricity for hollow rectangular section
            Limit of eccentricity for hollow circular section
Chimney subjected to wind pressure
Dams and retaining walls
      Dams
            Vertical face dam
            Inclined face dam
      Retaining walls
            Retaining walls without surcharged
            Retaining walls with surcharged 

Flickr Images