Effect of L/D ratio on compressive strength - Material Science

Q.  What is the effect of L/D ratio on compressive strength?
- Published on 06 Aug 15

a. compressive strength increases and then remains constant as L/D ratio increases
b. compressive strength decreases and then increases as L/D ratio increases
c. compressive strength decreases and then remains constant as L/D ratio increases
d. none of the above

ANSWER: compressive strength decreases and then remains constant as L/D ratio increases
 

    Discussion

  • Sravanthi   -Posted on 06 Oct 15
    When L/D ratio increases compressive strength decreases and remains constant.

    - If three metallic components of different L/D ratios are used and compression test is carried out it gives different results.

    - If L/D ratio is equal to one, then it has very high compressive strength and is fractured into pieces.

    - If L/D ratio is two, then load required will be less than that required for 1st specimen which means compressive strength decreases.

    - If L/D ratio is three, then less compressive strength is required than the 1st and 2nd specimen and the test specimen is not fractured and it just buckle's into 's' shape.

    - Hence it is concluded that as L/D ratio increases compressive strength decreases and remains constant.

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