On a third-order shear deformation theory for laminated composite shellsA higher-order theory based on an assumed displacement field in which the surface displacements are expanded in powers of the thickness coordinate up to the third order is presented. The theory allows parabolic description of the transverse shear stresses, and therefore the shear correction factors of the usual shear deformation theory are not required in the present theory. The theory also accounts for small strains but moderately large displacements (i.e., von Karman strains). A finite-element model based on independent approximations of the displacements and bending moments (i.e., mixed formulation) is developed. The element is used to analyze cross-ply and angle-ply laminated shells for bending.
Document ID
19860065382
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Liu, C. F. (Engineering Mechanics Research Corp. Troy, MI, United States)
Reddy, J. N. (Virginia Polytechnic Institute and State University Blacksburg, United States)