Thin-walled bars with an open cross-section are widely used in mechanical structures where weight and size control particularly required. Thus, this paper attempts to propose a theoretical model for predicting the properties of thin-walled bar under restrained torsion. Firstly, predictions shear stress, buckling normal secondary stress condition torsion was developed based on theory. Then, phys...

Abstract The paper presents a new modeling technique for accurately predicting the complex behavior of thin-walled open and closed section beams made fiber-reinforced laminated composite materials. is significantly computational-efficient compared to detailed finite element modeling. In this technique, complete 3D stress analysis problem consisting all effects their couplings systematically dec...

U-shaped thin-walled concrete bridge beams usually suffer the combined actions of flexure, shear and torsion, but no research about the behavior of U-shaped thin-walled RC beams under combined actions has been reported in literature. Three large specimens of U-shaped thin-walled RC beams were tested under different torque–bending moment ratios (T–M ratios) of 1:5, 1:1 and 1:0 to investigate the...

assessing the behavior of composite structures which are subjected to impact loads is one of the important subjects in the field of mechanical sciences. using thin-walled tubes which collapsed and absorbed the impact energy is a well-known method to prevent damages to the other parts of the structures. in this paper, deformations, crushing length, peak load, mean force and energy absorption cap...