Approximate analysis for interlaminar stresses in composite structures with thickness discontinuities

37th AIAA/ASME/ASCE/AHS/ASC Structure, Structural Dynamics and Materials Conference

Volumn , Issue , 1996, Pages 1623-1638

  Rose, Cheryl A ^a   Starnes, James H ^a  

^a NASA LANGLEY RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTATIONAL EFFICIENCY; DEFORMATION; LAMINATED COMPOSITES; STRESSES; STRUCTURAL DYNAMICS; STRUCTURE (COMPOSITION); AIRCRAFT MANUFACTURE; AIRCRAFT PARTS AND EQUIPMENT; APPROXIMATION THEORY; BOUNDARY CONDITIONS; COMPOSITE STRUCTURES; COMPUTER SIMULATION; EFFICIENCY; RESPONSE TIME (COMPUTER SYSTEMS); THREE DIMENSIONAL;

APPROXIMATE ANALYSIS; COMPLEMENTARY ENERGY; ELASTICITY SOLUTIONS; GEOMETRIC DISCONTINUITIES; OUT-OF-PLANE DEFORMATIONS; THICKNESS DISTRIBUTIONS; THREE-DIMENSIONAL STRESS FIELD; TWO-DIMENSIONAL ANALYSIS;

FINITE ELEMENT METHOD; STRESS ANALYSIS;

APPROXIMATE THREE DIMENSIONAL ANALYSIS; COMPUTATIONAL EFFICIENCY; COMPUTER EXECUTION TIMES; FAR FIELD STRESS; INTERLAMINAR COMPOSITES; MINIMUM COMPLEMENTARY ENERGY PRINCIPLE; OUT OF PLANE DEFORMATION; THICKNESS DISCONTINUITY;

EID: 0029714056     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.1996-1497     Document Type: Conference Paper

References (14)

1. Starnes, J. H., Jr., Knight, N. F., Jr., and Rouse, M., “Postbuckling Behavior of Selected Flat Stiffened Graphite-Epoxy Panels Loaded in Compression,” AIAA Journal, Vol. 23, No. 8, August 1985, pp. 1236-1246.
2. Hyer, M. W., and Cohen, D., “Calculation of Stresses in Stiffened Composite Panels,” AIAA Journal, Vol., 26, No. 7, July 1988, pp. 852-857.
3. Cohen, D., and Hyer, M. W., “Influence of Geometric Nonlinearities on Skin-Stiffener Interface Stresses,” AIAA Paper No. 88-2217, Proceedings of the 29th Structures, Structural Dynamics, and Materials Conference, Williamsburg, VA, April 18-20, 1988, pp. 75-84.
4. Kan, Han-Pin, Mahler, M. A., Deo, R. B., “Prediction of Stiffener-Skin Separation in Composite Panels,” NASA Conference Publication 3104, Part 2, First NASA Advanced Composites Technology Conference, 1990.
5. Kassapoglou, C. and DiNicola, A. J., “Efficient Stress Solutions at Skin-Stiffener Interfaces of Composite Stiffened Panels,” AIAA Journal, Vol. 30, No. 7, July 1992, pp. 1833-1839.
6. Kassapoglou, C., “Calculation of Stresses at Skin- Stiffener Interfaces of Composite Stiffened Panels Under Shear Loads,” International Journal of Solids and Structures, Vol. 30, No. 11, 1993, pp. 1491-1501.
7. Yin, W. L., “Free-Edge Effects In Laminates Under Extension, Bending and Twisting, Part I: A Stress Function Approach,” AIAA-91-0959-CP, 1991, pp. 985-995.
8. Lekhnitskii, S. G., Theory of Elasticity of an Anisotropic Elastic Body, Holden-Day, Inc., San Francisco, 1963.
9. Pagano, N. J., “Stress Fields in Composite Laminates,” International Journal of Solids and Structures, Vol. 14, 1978, pp. 385-400.
10. Rose, C. A., and Herakovich, C. T, “An Efficient Approximate Solution for Interlaminar Stresses,” Composites Engineering, Vol. 3, No. 3, 1993, pp. 271-285.
11. Anon., “VAX UNIX MACSYMA Reference Manual, Version 11,” Symbolic, Inc., 1985.
12. Ward, R. C., “An Extension of the QZ Algorithm for Solving Generalized Matrix Eigenvalue Problems,” NASA TN D-7305, July 1973.
13. Buczek, M. B., Gregory, M. A., and Herakovich, C. T., “CLFE2D - A Generalized Plane Strain Finite Element Program for Laminated Composites Subjected to Mechanical and Hygrothermal Loading,” VPI-E-83-40, Virginia Polytechnic Institute and State University, Blacksburg, VA, 1983.
14. Rose, C. A., “Approximate Analytical Solution for Interlaminar Stresses in Composite Laminates with Extension and Curvature,” Ph. D. Dissertation, Civil Engineering, University of Virginia, May 1992.