A designer needs the value for the transverse shear modulus, G23, for a unidirectional graphite/epoxy composite material that he is considering for his composite application. Such properties are not always easy to find. Given the following properties for the fiber and the matrix, use the Halpin-Tsai equations to estimate the value of, G23. Ef=230 GPa, E2f = 22 GPa, G12f = 22 GPa, V12f= 0.3, V23f= 0.35, Em=3.4 GPa, Vm = 0.3, Vf= 60%. Hint: assume that a reinforcing factor of unity can be used to calculate the Poisson's ratio.

Elements Of Electromagnetics
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ISBN:9780190698614
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A designer needs the value for the transverse shear modulus, G23, for a unidirectional
graphite/epoxy composite material that he is considering for his composite application. Such
properties are not always easy to find. Given the following properties for the fiber and the
matrix, use the Halpin-Tsai equations to estimate the value of, G23. E1f= 230 GPa, Ey= 22
GPa, G125 = 22 GPa, v1= 0.3, V23f= 0.35, Em=3.4 GPa, Vm= 0.3, V5= 60%.
Hint: assume that a reinforcing factor of unity can be used to calculate the Poisson's ratio.
Transcribed Image Text:A designer needs the value for the transverse shear modulus, G23, for a unidirectional graphite/epoxy composite material that he is considering for his composite application. Such properties are not always easy to find. Given the following properties for the fiber and the matrix, use the Halpin-Tsai equations to estimate the value of, G23. E1f= 230 GPa, Ey= 22 GPa, G125 = 22 GPa, v1= 0.3, V23f= 0.35, Em=3.4 GPa, Vm= 0.3, V5= 60%. Hint: assume that a reinforcing factor of unity can be used to calculate the Poisson's ratio.
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