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Boundary-layer hygrothermal stresses in laminated, composite, circular, cylindrical shell panels

Nosier, A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s00419-009-0323-0
  3. Abstract:
  4. Free-edge effects in laminated, circular, cylindrical shell panels subjected to hygrothermal loading are studied by utilizing displacement-based technical theories. Starting from the most general displacement field of elasticity for long, circular, cylindrical shells, appropriate reduced displacement fields are determined for laminated composite shell panels with cross-ply and antisymmetric angle-ply layups. An equivalent single-layer shell theory is used to analytically determine the constant parameters appearing in the reduced displacement fields. A layerwise shell theory is then employed to analytically determine the local displacement functions and the boundary-layer interlaminar stresses in cross-ply and antisymmetric angle-ply shell panels under hygroscopic and/or thermal changes. Several numerical examples for the distributions of transverse shear and normal stresses in various shell panels under a uniform temperature change are presented and discussed
  5. Keywords:
  6. Antisymmetric angle-ply laminated panels ; Cross-ply laminated panels ; Equivalent single-layer theory ; Interlaminar hygrothermal stresses ; Keywords circular, cylindrical shell panels ; Angle-ply ; Anti-symmetric ; Cross-ply ; Cylindrical shell ; Equivalent single layers ; Hygrothermal stress ; Interlaminar ; Laminated panels ; Layer-wise theory ; Boundary layers ; Fabrics ; Laminated composites ; Laminating ; Sandwich structures ; Stress analysis ; Shells (structures)
  7. Source: Archive of Applied Mechanics ; Volume 80, Issue 4 , 2010 , Pages 413-440 ; 09391533 (ISSN)
  8. URL: http://link.springer.com/article/10.1007/s00419-009-0323-0