By Minoru Taya
Steel matrix composites (MMCs) are one of many most powerful applicants to be used as structural fabrics in lots of hot temperature and aerospace purposes. The energy and extreme temperature functionality of MMCs are regarding their thermomechanical habit. during this e-book, the results of thermal lines at the fabrics' houses are tested on the microscopic and macroscopic degrees, and are defined for the 1st time when it comes to a mix of continuum mechanics and dislocation mechanisms. The ebook is totally referenced, with literature insurance entire to mid-1988, and a collection of difficulties is incorporated with each one bankruptcy
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Extra info for Metal Matrix Composites. Thermomechanical Behavior
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And Ashby, M. , Deformation-Mechanism Maps, Pergamon Press, 1982. 7. Mukherjee, A. , Bird, J. E. and Dorn, J. , Trans. ASM, Vol. 62, 1969, pp. 155-179. 8. Carslaw, H. S. and Jaeger, J. C, Conduction of Heat in Solids, 2nd edn, Oxford University Press, 1959. 9. Jones, R. , Mechanics of Composite Materials, McGraw-Hill, 1975. 10. Wooster, W. , A Textbook on Crystal Physics, Cambridge University Press, 1938. 11. Cristensen, R. , Mechanics of Composite Materials, John Wiley, 1979. 40 12. 13. 14. 15.
Experimental results, (b) The ratio of yield stresses of the composite (ffyc) to matrix metal (σ ) vs. volume fraction of SiC whisker. Basic Mechanical Behavior 51 aspect ratio (l/d) [9]. In the same figure the analytical results based on several models are also shown by various curves; solid (Eshelby type model) [10], dash (shear lag type model) [8] and dash-dot (the Eshelby type model modified to account for the residual stress) [22]. Although the predictions by these models agree with the experimental results of Τό-treated SiC/Al composites, they tend to underestimate for non-heat-treated SiC/Al composites (open symbols).
2 Dynamic modulus of elasticity of a continuous tungsten fiber/copper composite where the experimental results are shown by filled circles and the prediction based on eq. 1) by solid line [1]. 44 Metal Matrix Composites 200 < I 150 uT (Λ -J Q »- 50 0 10 20 30 40 50 60 FIBER VOLUME FRACTION, V, (%) FIG. 3 Transverse modulus (ET) of a BORSICfiber/6061Al composite as a function offibervolume fraction (V{) [4]. eq. 1) is shown by a solid line [1]. The law of mixtures prediction is also reasonably accurate for aligned short fiber metal matrix composites, but it gives rise to poor estimates of EL of misoriented short fiber metal matrix composites and ΕΎ (the transverse modulus) of continuous and short fiber metal matrix composites as shown in Fig.