Consider a carbon fibre composite, made using an epoxy resin. The modulus of the fibres Efis 210 GPa, and the modulus of the matrix Em is 3.2 GPa. Calculate the following moduli, and choose the correct answers from the list below. Modulus of a unidirectional composite using the rule of mixtures at a volume fraction of 35% fibre. Maximum modulus of a cross-ply laminate of the material. E0⁰ E0%/90°

Consider a carbon fibre composite, made using an epoxy resin. The modulus of the fibres Efis 210 GPa, and the modulus of the matrix Em is 3.2 GPa. Calculate the following moduli, and choose the correct answers from the list below. Modulus of a unidirectional composite using the rule of mixtures at a volume fraction of 35% fibre. Maximum modulus of a cross-ply laminate of the material. E0⁰ E0%/90°

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Processing of Polymer Matrix Composites

The polymer matrix composite is described as a composite material that contains some polymer in the form of either fibers or powder. Polymer matrix composites are also known in short as PMC's.

Question

Consider a carbon fibre composite, made using an epoxy resin. The modulus of the fibres Efis 210 GPa, and the modulus of the matrix Em is 3.2 GPa.
Calculate the following moduli, and choose the correct answers from the list below.
Modulus of a unidirectional composite using the rule of mixtures at a volume
fraction of 35% fibre.
E0⁰
E0°/90° Maximum modulus of a cross-ply laminate of the material.
Egº = 76.5 MPa.
E0⁰ = 75.6 GPa.
Eoº = 101.8 GPa.
Egº = 110.2 MPa.
E0°/90° = 0.3 MPa.
E0°/90° = 0.5 MPa.
E0°/90° = 36.8 GPa.
E0°/90° = 42.5 GPa.

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