Amazon rectangular bar of low carbon steel A-36 is exposed to an axial strees of 150 MPa. What is the original length of the bar in m, if it

Question

Amazon rectangular bar of low carbon steel A-36 is exposed to an axial strees of 150 MPa. What is the original length of the bar in m, if it elongates 1.35 mm under these conditions?

in progress 0
Mít Mít 3 months 2021-07-29T14:27:21+00:00 1 Answers 2 views 0

Answers ( )

    0
    2021-07-29T14:29:11+00:00

    Answer:

    1.8m

    Explanation:

    Let the Elastics of the steel ASTM-36 E = 200000 MPa

    The strain of the bar when subjected to 150 MPa is

    \epsilon = \frac{\sigma}{E} = \frac{150}{200000} = 0.00075

    Therefore, if the bar elongates by 1.35 mm, then the original length L would be:

    \epsilon = \frac{\Delta L}{L}

    L = \frac{\Delta L}{\epsilon} = \frac{1.35}{0.00075} = 1800 mm or 1.8m

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )