Abstract
AbstractA mathematical model to describe secondary creep in a thick composite cylinder made of Al–SiCpand subjected to both internal and external pressures has been developed. The creep behavior of the composite has been described by a threshold stress based creep law with a stress exponent of 5. The model developed has been used to investigate the effect of varying size and content of the SiCpdispersoid on the stresses and strain rates in a composite cylinder. It is observed that the stress distributions in the cylinder do not have significant variation with varying size and content of the SiCp. Unlike stresses, the strain rates in the cylinder are reduced to a significant extent by decreasing the size of SiCpand increasing the content of SiCp.
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