You get a bonus - 1 coin for daily activity. Now you have 1 coin

DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA

Lecture



DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA
If the flexibility of the rod is less than the limit value   DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA - sun area in fig. 8.3), the Euler formula becomes inapplicable, since the critical stresses exceed the limit of proportionality and Hooke's law is inapplicable. In these cases, the critical stress is determined by empirical formulas obtained on the basis of experiments and given in reference books. One of these formulas is the Yasinsky formula:
  DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA
where a, b and c are coefficients depending on the properties of the material.
For mild steel the coefficients are equal
  DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA
where F is the cross-sectional area of ​​the rod.
For short rods whose flexibility   DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA , the calculation of the stability is not produced. Flexibility limit   DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA can be found from the condition   DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA where   DETERMINATION OF CRITICAL POWER BY MEANS OF EMPIRICAL FORMULA - yield strength of the rod material.

Comments


To leave a comment
If you have any suggestion, idea, thanks or comment, feel free to write. We really value feedback and are glad to hear your opinion.
To reply

Stability of compressed rods

Terms: Stability of compressed rods