A SIC/Al particulate matrix composite has density of 3.0 g/cm (i) Find the volume percent of...

  

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A SIC/Al particulate matrix composite has density of 3.0 g/cm (i) Find the volume percent of SiC in the composite (PAI-2.7 g/cm³, Psic=3.21). un (ii) Find the modulus of elasticity of the composite (EAL=70GPa, Esic-250GPa). 3 (iii) Replace the aluminum matrix with a polyethylene matrix and find the modulus elasticity at o=90% of the yield strength. [Use the stress strain curve of polyethylene given below. Express E in GPa.] or (ksi) 5 4 3 2 1 0 0 O O 0.008 0.016 0.024 0.032 0.040 0.048 e (in./in.) Fig. 1 Tensile curve of polyethelene. A SIC/Al particulate matrix composite has density of 3.0 g/cm (i) Find the volume percent of SiC in the composite (PAI-2.7 g/cm³, Psic=3.21). un (ii) Find the modulus of elasticity of the composite (EAL=70GPa, Esic-250GPa). 3 (iii) Replace the aluminum matrix with a polyethylene matrix and find the modulus elasticity at o=90% of the yield strength. [Use the stress strain curve of polyethylene given below. Express E in GPa.] or (ksi) 5 4 3 2 1 0 0 O O 0.008 0.016 0.024 0.032 0.040 0.048 e (in./in.) Fig. 1 Tensile curve of polyethelene.