V- It is necessary to design a continuous and aligned glass fiber-reinforced polyester having a tensile strength of at least 1400 MPa in the longitudinal direction. The maximum possible specific gravity is 1.65. Using the following data, determine whether such a composite is possible. Justify. Assume a value of 15 MPa for the stress on the matrix when the fibers fail. Material Glass fiber Polyester Specific gravity 2.5 1.35 Tensile strength (MPa) 3500 50

V- It is necessary to design a continuous and aligned glass fiber-reinforced polyester having a tensile strength of at least 1400 MPa in the longitudinal direction. The maximum possible specific gravity is 1.65. Using the following data, determine whether such a composite is possible. Justify. Assume a value of 15 MPa for the stress on the matrix when the fibers fail. Material Glass fiber Polyester Specific gravity 2.5 1.35 Tensile strength (MPa) 3500 50

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 7CQ

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Question

IV- It is necessary to design a continuous and aligned glass fiber-reinforced
polyester having a tensile strength of at least 1400 MPa in the longitudinal direction.
The maximum possible specific gravity is 1.65. Using the following data, determine
whether such a composite is possible. Justify. Assume a value of 15 MPa for the
stress on the matrix when the fibers fail.
Material
Glass fiber
Polyester
Specific gravity
2.5
1.35
Tensile strength
(MPa)
3500
50

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