TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
The Torsion of Thin Wall I-Profile Section Beams With Uneven Legs
(Torsiunea barelor cu pereti subţiri, profil I cu aripi neegale)
Vol LIX • No. 4/2007
Constantin Manea, Ion Eparu
Oil-Gas University in Ploieşti, Bd. Bucureşti nr. 39, România
e-mail:ieparu@upg-ploiesti.ro

 Keywords   torque, momentum and bi-momentum of bending-torsion, stress.

 Abstract
The paper presents a method for calculating movement and tensions that appear in straight, thin-walled, I-section poles with uneven legs while stressed in torque.
The calculus method considers the real situation, when section movement is blocked, leading to both normal and tangent tensions. The results obtain using this method differ from those using the elementary torque stress theory that considers section movement to be free. Therefore, the method presented in this paper should be used for proper sizing of this pole types.

 Rezumat
Lucrarea prezintă o metodă pentru calculul tensiunilor şi deplasărilor ce apar în barele drepte cu pereţi subţiri având secţiuni în formă de I, cu tălpile neegale, solicitate la torsiune.



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