Tuesday

March 31, 2015

March 31, 2015

Posted by **sushil** on Thursday, July 25, 2013 at 12:25pm.

- solid mechanics -
**Elena**, Thursday, July 25, 2013 at 4:04pmnormal stress

σ = F/A = 250000/0.1•0.1 = 2.5•10⁷ N/m²

Tangential stress

τ = F /(A/cosα) = Fcosα/A =

=250000•0.5/0.1•0.1=1.25•10⁷ N/m²

- solid mechanics -
**MathMate**, Thursday, July 25, 2013 at 4:29pmIf I am not mistaken, tangential stress on a plane section at 60° to the longitudinal axis would be the shear stress, γ, and the normal stress on the same plane is the normal stress, σ.

σx=250 kN / (0.1²) m²

=25 MPa

σy=0

α=60°

Using the Mohr circle, we have

Tangential stress

=(σx-σy)/2 * sin(2*α)

=25/2 * sin(2*60°) MPa

=6.25√3 MPa

Normal stress

=((σx+σy)/2 + (σx-σy)/2 * cos(2*α)

= 12.5 + 12.5cos(2*60°)

=6.25 MPa

- solid mechanics -
**MathMate**, Thursday, July 25, 2013 at 4:56pmSorry, typo above:

shear stress should have read τ. γ would have been shear strain.

**Answer this Question**

**Related Questions**

sjc coolege - A steel bar 10m long and 10cm ×2.5cm in section .It is subjected ...

THEORY OF MACHINE - A steel bar 10 m long and 10 cm * 2.5 cm in section. It is ...

solid mechanics - A steel plate is subjected to tensile stresses of 200MPa and ...

Physic - Reaction at support and internal axial force resultant Consider two ...

psuchics - Reaction at support and internal axial force resultant Consider two ...

physics - Consider two straight bars of uniform cross section made of the same ...

Solid Mechanics - A cast iron block of 5Cm^2 cross section carries an axial ...

Solid Mechanics - pls help me to resolve this question A casts iron block of ...

Solid Mechanics - A casts iron block of 5cm2 cross section carries load of 50KN...

Solid Mechanics - A round bar 40 mm dia meter is subjected to an axial pull of ...