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The Euler critical stress of a column is proportional to

  • A.The slenderness ratio
  • B.The square of the slenderness ratio
  • C.The yield stress of the material
  • D.One over slenderness squared

Answer: D

Dividing the critical load by the area gives pi squared E over slenderness squared. The curve falls away steeply as the column becomes more slender, and it rises without limit for very short columns, which is where the formula stops being physically sensible.

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