Open AccessClosed-form Solution of Prestressed Composite Beam Deformation
Author(s) -
Linfei Wang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/804/2/022069
Subject(s) - virtual work , deflection (physics) , composite number , boundary value problem , slip (aerodynamics) , structural engineering , finite element method , beam (structure) , nonlinear system , materials science , mathematics , mathematical analysis , composite material , classical mechanics , engineering , physics , thermodynamics , quantum mechanics
Eccentric load effect of prestressing in composite beam leads to nonlinear coupling oof deflection-slip. For the prestressed composite beam, considering axial force and eccentric moment of the prestressing equivalent load, variational equilibrium equations are imposed by the virtual work theorem which involves the interfacial slip condition. With relevant boundary conditions of different structural form, the closed-form solution can be derived. The model and closed-form solution are then validated by means of finite element analysis.