A method for calculating the properties of advanced composite laminates, including their variations due to known variations in the properties of the individual plies and the laminate geometry, is presented. The method is useful for understanding scatter in the measured properties of composite laminates. This scatter is particularly important in the design of ultra-low coeflicient of thermal expansion (CTE) laminates. Such lami nates are designed with a theoretically zero CTE, but in practice have a distribution of non- zero CTEs. Information useful for designing ultra-low expansion laminates is discussed. A practical limit on how close to zero the CTE of a laminate can be assumed to be is found.
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References
1.
Boyce, L.1988 "Probabilistic Structural Analysis Methods for Improving Space Shuttle Engine Reliability," Journal of Propulsion, 5426-430
2.
Millwater, H. , Y-T. Wu, T. Torng, B. Thacker, R. Riha and C.P. Leung1992 "Recent Developments of the NESSUS Probabilistic Structural Analysis Computer Program," m AIAA/ASME/ ASCE/AHS/ASC 33rd Structures, Structural Dynamics and Materials Conference , Dallas, TX, pp 614-624.
3.
Chamis, C.C.1991 "Computer Codes Developed and Under Development at Lewis," in Computational Structure Technology for Airframes and Propulsion Systems, NASA CP-3142, Hampton, VA, pp 43-57.
4.
Tani, S. , S. Nakagiri and T. Higashino1988 "Assessment of the Reliability Indices of CFRP Laminated Plate," m Computational Probabilistic Methods, W. K. Lui, et al , eds., ASME-AMD-93, Berkeley, CA, pp 27-36.
5.
Greene, W.H.1984 "Effects of Random Member Length Errors on the Accuracy and Internal Loads of Truss Antennas," Journal of Spacecraft , 22554-559
6.
Hedgepeth, J.M.1981 "Influence of Fabrication Tolerances on the Surface Accuracy of Large Antenna Structures," AIAA Journal, 20680-686
7.
8.
Hines, W.W. and D.C. Montgomery1980Probability and Statistics in Engineering and Management ScienceNew York, NYJohn Wiley & Sons
9.
Tompkins, S.S. , D.E. Bowles, W.S. Stemp and L.A. Teichman1988 "Response of Composite Materials to the Space Station Orbit Environment,"in AIAA/NASA Space Station Symposium , Williamsburg, VA
10.
Johnson, R.R. , R.M. Bluck and A M C Holmes1986 "Development of Space Station Strut Design,"in Proceedings of the 31st International SAMPE Symposium, pp 90-102
