Articles Posted in the " Principal stresses " Category

  • Highlights of principal stresses and principal planes

    Highlights of principal stresses and principal planes

    Highlights of principal stresses and principal planes (i) Principal planes are at right angles to each other and are given by tan2 θpp = 2 τ/( σx — σy) In this  σx and σy are assumed to be tensile. Two values of tan 2θ will give two values of 2θpp. These will be 2θpp1 and 2θpp2 such that  2θpp2 =  2θpp1 +1800 […]


  • SOM ASSIGNMENT      PRINCIPAL STRESSES/COMPLEX STRESSES

    SOM ASSIGNMENT    PRINCIPAL STRESSES/COMPLEX STRESSES

    SOM ASSIGNMENT  PRINCIPAL STRESSES/COMPLEX STRESSES  At a point in an elastic material under strain, the stresses on three mutually perpendicular planes are follows: A normal tensile stress of 60 N/mm2 and a shear stress of 40 N/mm2 on one plane, a normal compressive stress of 40 N/mm2 and a complementary shear stress of 40 N/mm2 […]






  • COMPOUND STRESS/COMPLEX STRESS SYSTEM

    COMPOUND STRESS/COMPLEX STRESS SYSTEM

    COMPOUND STRESS/COMPLEX STRESS SYSTEM When normal and shear stresses act simultaneously  on an area (plane), it is called a complex or compound stress system. It will happen when the force is inclined to an area. The inclined force can be resolved into normal and tangential components.Normal component will cause normal stress and tangential component will […]



  • S O M  MECHANICAL ENGINEERING – Ellipse of Strain–2- Dimensional

    S O M MECHANICAL ENGINEERING – Ellipse of Strain–2- Dimensional

    S O M MECHANICAL ENGINEERING -Ellipse of Strain–2–Dimensional ELLIPSE OF STRAIN It is the locus of the resultant strain on the infinite inclined planes within a body under principle strains. It is a graphical method to find the resultant strain and the angle of obliquity on a given inclined plane (with the plane of major […]


  • S O M  MECHANICAL ENGINEERING -Ellipse of Stress–2-Dimensional

    S O M MECHANICAL ENGINEERING -Ellipse of Stress–2-Dimensional

    S O M  MECHANICAL ENGINEERING -ELLIPSE OF STRESS –2 Dimensinal Introduction In 2-D it is called ellipse of stress . In 3 D it is called ellipsoid of stress. Actually all bodies are 3-D. All stress systems are also 3-D. But to make study easy to understand, first 2-D stress system is studied. The state […]