家樂 asked in 科學其他:科學 · 1 decade ago

應力(stress)計算

長0.5m之長骨(long bone),其截面積為5平方公分,受10N之拉力作用,若伸長0.2公分,在不考慮橫向應變(strain),其應力值為何?

承上題,其長軸方向的應變值為何?

1 Answer

Rating
  • 昱銘
    Lv 4
    1 decade ago
    Favorite Answer

    (1)

    σ = F / A

    σ = 10 / 5 = 20 kPa

    (2)

    ε = δ/ L

    ε = 0.2/ 50 = 0.01 (應變是沒有單位的)

    Source(s): 很久以前老師教的
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