Thermoelastic behavior of composites with functionally graded interphase: a multi-inclusion model

The thermoelastic behavior of composites with functionally graded interphase is analyzed by the multi-inclusion model, where the explicit expressions for the e€ective thermoelastic moduli and thermoelastic ®eld of the composite are obtained. This method is especially suitable for the analysis of functionally graded interphase because it allows the arbitrary varying material properties in the interphase, allows a wide range of microgeometries of the composite, allows determination of the complete set of thermoelastic moduli and ®eld, and is easy to implement. Its internal- consistency is also examined. Numerical results for the e€ective thermoelastic moduli and thermoelastic ®eld of SiC reinforced intermetallic matrix are given and discussed to demonstrate the applicability of the method