What is moment of resistance?

Q.  What is the product of sectional modulus and allowable bending stress called as?
- Published on 21 Sep 15

a. Moment of inertia
b. Moment of rigidity
c. Moment of resistance
d. Radius of gyration

ANSWER: Moment of resistance

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    Discussion

  • Sravanthi   -Posted on 24 Nov 15
    - Moment of resistance: It is defined as the couple which produces tensile stress on tensile zone and compressive stress on compressive zone to resist bending moment which results due to external loading.

    - It is always opposite to bending moment.

    - The member or beam fails when bending moment is greater than moment of resistance.

    To achieve equilibrium condition, bending moment is equal to moment of resistance.

    Bending moment = M/I & Moment of resistance = σ/y

    In equilibrium condition,

    Bending moment = Moment of resistance

    M/I = σ/y

    M = σ Z --------------( Z = I/y)

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