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TI-59 Magnetic card Calculator Solutions to Composite Materials Formulas
Report Number: AFML TR 79-4040 (Revised)
Author(s): Stephen W. Tsai; Rudolfo Aoki
Corporate Author: Materials Laboratory
Publication Date: 1/1/1981
Pages: 68
Project: 0
Task: 0
AD Number: ADA095123
Photo Enhancement: Not Needed
Abstract Text:
This volume contains the description and instructions of magnetic cards for TI-59 programmable calculators. These tapes contain the key calculations of the stiffness and strength of unidirectional and laminated composites. Both in-plane and flexural loadings can be applied. The initial stress and strain due to curing moisture adsorption are also included in the strength calculation. With the aid of the magnetic cards, instant calculations can be made for practical use. The use of cards is also an effective teaching tool. The formulas used in the cards and equation numbers have been derived in a book entitled, Introduction to Composite Materials, co-authored by S. W. Tsai and H. T. Hahn, published by Technomic Publishing Company, Westport, CT, July 1980. This TR a revised edition of the technical report bearing the same number published in April 1979.
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Effects of Thermal Spiking on Graphie-Epoxy Composities
Report Number: AFML TR 79-4059
Author(s): George S. Springer; Alfred C. Loos
Corporate Author: University of Michigan
Publication Date: 6/1/1979
Pages: 61
Project: 0
Task: 0
AD Number: ADA072825
Photo Enhancement: Incomplete
Abstract Text:
Tests were performed evaluating the effects of thermal spikes on the moisture absorption characteristics, the ultimate tensile strength, and the buckling modulus of Thornel 300/Fiberite 1034 composites. Measurements were made on unidirectional and angleply laminates, using different types of thermal spikes. A survey was also made of the existing data. This survey, together with the present data, indicate how thermal spikes affect the moisture absorption and the mechanical properties of different graphite-epoxy composites.
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