Chapter 9 Stress Transformation MOM

Complete the following sentences for sign convention of plane stress element

• 1) OUTWARDS

  2) DOWNWARDS

  3) LEFT-HAND FACE

• 1) OUTWARDS

  2) UPWARDS

  3) RIGHT-HAND FACE

• 1) INWARDS

  2) UPWARDS

  3) RIGHT-HAND FACE

• 1) INWARDS

  2) UPWARDS

  3) LEFT-HAND FACE

The following stress transformation equations are functions of:

Principal stresses are expressed as in the equation. How are those two terms represented in Mohr's circle?

• Transformed stress & Transformed strain

• Differentiated stress & Differentiated strain

• Average normal stress & Radius of the circle

• Average normal stress & Diameter of the circle

The followings are CORRECT about principal stresses

[Choose ALL which are applicable]

• Represent the maximum and minimum normal stress at the point

• There is NO shear stress acting in this orientation

Choose ALL which are correct about these two equations

• Maximum in-plane shear stress & the corresponding average normal stress

• Act on all four faces of the element

• Absolute maximum shear stress & the corresponding average normal stress

Choose ALL which are correct about Mohr's circle

• Sigma and Tau axes are positive going to the right and upwards respectively

• Angle in Mohr's circle is TWICE the angle in the actual orientation

Choose CORRECT description of points B, D, F and E

• Point B: Maximum principal stress

• Point D: Maximum principal stress

• Point E: Maximum in-plane shear stress

• Point F: Minimum principal stress

Choose CORRECT angles in Mohr's circle from reference point, A to maximum principal stress, B and maximum in-plane shear stress, E

[Choose ALL which applicable]