wskaźnik wytrzymałości przekroju kołowego na skręcanie
English translation: polar modulus//torsional section modulus for a circular cross-section
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| 15:29 Sep 7, 2019 |
| Polish to English translations [PRO] Tech/Engineering - Mechanics / Mech Engineering / general mechanics | |||||||
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|  Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 09:46 | ||||||
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3 hrs confidence: 
polar moment of inertia for a circular cross-section shaft Explanation: J/r = W0 = wskaźnik wytrzymałości przekroju kołowego na skręcanie, Here, wskaźnik wytrzymałości przekroju kołowego na skręcanie, is the ratio of the biegunowy moment bezwładności analizowanego przekroju kołowego (polar moment of inertia, J) and the radius of the rod, r. English texts do not divide by the radius. Once J is known, it is trivial to divide by r to obtain W. The direct translation would be the torsional resistance indicator for a circular cross-section shaft cccccccc the "Polar Moment of Inertia of an Area" is a measure of a shaft's ability to resist torsion. The "Polar Moment of Inertia" is defined with respect to an axis perpendicular to the area considered. It is analogous to the "Area Moment of Inertia" - which characterizes a beam's ability to resist bending - required to predict deflection and stress in a beam. "Polar Moment of Inertia of an Area" is also called "Polar Moment of Inertia", "Second Moment of Area", "Area Moment of Inertia", "Polar Moment of Area" or "Second Area Moment". "Polar Moment of Inertia" - a measure of a beam's ability to resist torsion - which is required to calculate the twist of a beam subjected to torque https://www.engineeringtoolbox.com/torsion-shafts-d_947.html ccccccc The polar moment of inertia, also known as second polar moment of area, is a quantity used to describe resistance to torsional deformation (deflection), in cylindrical objects (or segments of cylindrical object) with an invariant cross-section and no significant warping or out-of-plane deformation. https://en.wikipedia.org/wiki/Polar_moment_of_inertia |
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3 hrs confidence:
polar modulus//torsional section modulus for a circular cross-section Explanation: Following A. G.'s, lead, here are the names of J/R. The discussion of the polar moment of inertia is given in the other answer. Polar modulus is defined as the ratio of the polar moment of inertia to the radius of the shaft. It is also called as torsional section modulus. It is denoted by Zp. https://www.oreilly.com/library/view/strength-of-materials/9... |
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