Journal
ARCHIVE OF APPLIED MECHANICS
Volume 81, Issue 4, Pages 419-435Publisher
SPRINGER
DOI: 10.1007/s00419-010-0407-x
Keywords
Thin-walled composite beams; Shear deformation; Axial-flexural-torsional response; Nonlinear theory
Categories
Funding
- Ministry of Education, Science, and Technology [2009-0087819]
- National Research Foundation of Korea [2009-0087819, 핵C6A2205] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Based on a seven-degree-of-freedom shear deformable beam model, a geometrical nonlinear analysis of thin-walled composite beams with arbitrary lay-ups under various types of loads is presented. This model accounts for all the structural coupling coming from both material anisotropy and geometric nonlinearity. The general nonlinear governing equations are derived and solved by means of an incremental Newton-Raphson method. A displacement-based one-dimensional finite element model that accounts for the geometric nonlinearity in the von Karman sense is developed to solve the problem. Numerical results are obtained for thin-walled composite beam under vertical load to investigate the effects of fiber orientation, geometric nonlinearity, and shear deformation on the axial-flexural-torsional response.
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