To realized design and analysis of composite parts structural integrity

the low pressure turbine shaft was taken as the object of research. Firstly

four kinds of micromechanical methods were utilized to calculate the mechanical parameter of continuous filament reinforced metal matrix composite. Secondly

the calculated parameters of RVE (representative volume element) finite element model were taken as input and the mechanics analysis model of fiber reinforced metal matrix composite shaft was built. The optimal solution could be got by calculating the deformation and bearing capacity of continuous filament reinforced metal matrix composite shaft with torsion load and by comparing with the deformation and bearing capacity of shaft with different laminate schemes; in case of certain fiber volume fraction

the deformation of scheme 4 is the smallest

and the critical buckling torque of scheme 2 is the greatest.