Analysis of Thin-Walled Beams by Yoon Young Kim & Gang-Won Jang & Soomin Choi

Author:Yoon Young Kim & Gang-Won Jang & Soomin Choi
Language: eng
Format: epub
ISBN: 9789811977725
Publisher: Springer Nature Singapore

Figure 6.1 also shows the constrained distortion modes.1 Because the extensional load type considered here is symmetric with respect to the and axes, the constrained distortion modes should also be symmetric (Kim and Kim 2003; Jang and Kim 2009a). If the modes have zero corner rotation, they will be classified as type-1 constrained modes, denoted by . If the modes have non-zero rotations, on the other hand, they will be classified as type-2 constrained modes, denoted by . Like the constrained distortion modes derived for the torsion of a box beam, the constrained distortion modes for axial extension are not accompanied by s-directional deformation; see Fig. 6.1. The constrained distortion modes will be derived in Sects. 6.3–6.6. Some numerical analyses using higher-order deformable section modes derived in this chapter will be presented in Sect. 6.8 using the finite element formulation briefly explained in Sect. 6.7.

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