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A nonlinear couple stress-based sandwich beam theory
[article]
2019
arXiv
pre-print
A geometrically nonlinear sandwich beam model founded on the modified couple stress Timoshenko beam theory with K\'arm\'an kinematics is derived and employed in the analysis of periodic sandwich structures. The constitutive model is based on the mechanical behavior of sandwich beams, with the bending response split into membrane-induced and local bending modes. A micromechanical approach based on the structural analysis of a unit cell is derived and utilized to obtain the stiffness properties
arXiv:1903.07805v1
fatcat:yv2heehp4rg4zkt2h4zgfd4e7m