Question
In: Chemistry
A continuous and aligned fiber-reinforced composite is to be produced consisting of 30 vol.% aramid fibers...
A continuous and aligned fiber-reinforced composite is to be produced consisting of 30 vol.% aramid fibers and 70 vol.% of a polycarbonate matrix. The elastic modulus values of aramid fibers and polycarbonate matrix are 131 GPa and 2.4 GPa, respectively. Assume that the composite has a cross-sectional area of 320 mm2 and is subjected to a longitudinal load of 44.500 N.
- What is the elastic modulus of the composite in the longitudinal direction?
- What is the fiber/matrix load ratio?
- What is the load carried by matrix phase?
- What is the magnitude of the stress on fiber phase?
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
There are 2 types of Fiber-reinforced composite material. Continuous (aligned) and discontinuous(random or aligned) If we...
There are 2 types of Fiber-reinforced composite
material. Continuous (aligned) and discontinuous(random or
aligned)
If we have aligned composite, how can we know it is discontinuous?
And what is difference with random discontinuous?
A continuous and aligned fiber-reinforced composite having a cross-sectional area of 1190 mm2 is subjected to...
A continuous and aligned fiber-reinforced composite having a
cross-sectional area of 1190 mm2 is subjected to an external
tensile load. If the stresses sustained by the fiber and matrix
phases are 144 and 2.16 MPa, respectively, the force sustained by
the fiber phase is 74400 N, and the total longitudinal strain is
0.00119, determine the following: (a) The force sustained by the
matrix phase (in N). (b) The modulus of elasticity of the composite
material in the longitudinal direction (in...
A continuous and aligned fibrous reinforced composite having a cross-sectional area of 875 mm2 is subjected...
A continuous and aligned fibrous reinforced composite having a
cross-sectional area of 875
mm2 is subjected to an external tensile load. If the
stresses sustained by the fiber and matrix
phases are 255 MPa and 8.35 MPa, respectively, the force sustained
by the fiber phase is 85,800
N, and the total longitudinal composite strain is 1.65 x
10-3, determine the following:
(20 Points)
(a) Volume fraction of fiber and matrix
(b) The force sustained by the matrix phase
(c) The...
A continuous and aligned fibrous reinforced composite having a cross-sectional area of 875 mm2 is subjected...
A continuous and aligned fibrous reinforced composite having a
cross-sectional area of 875
mm2 is subjected to an external tensile load. If the
stresses sustained by the fiber and matrix
phases are 255 MPa and 8.35 MPa, respectively, the force sustained
by the fiber phase is 85,800
N, and the total longitudinal composite strain is 1.65 x
10-3, determine the following:
(a) Volume fraction of fiber and matrix
(b) The force sustained by the matrix phase
(c) The modulus of...
A new set of fiber-reinforced composite is designed to support the body function. Compute the longitudinal...
A new set of fiber-reinforced composite is designed to support
the body function. Compute the longitudinal tensile strength of
this fiber–epoxy matrix biocomposite in which the average fiber
diameter and length are 0.018 mm and 2.2 mm, respectively, and the
volume fraction of fibers is 0.35. Assume that the fiber–matrix
bond strength is 122 MPa, the fracture strength of the fibers is
3800 MPa, and the matrix stress at composite failure is 5.9
MPa.
Explain why the stiffness of a discontinuous fiber composite is less than that of a continuous...
Explain why the stiffness of a discontinuous fiber composite is
less than that of a continuous fiber composite with the same
constituents and same proportion of reinforcement.
Compute the longitudinal tensile strength of an aligned glass fiber-epoxy matrix composite in which the average...
Compute the longitudinal tensile strength of an aligned glass
fiber-epoxy matrix composite in which the average fiber diameter
and length are 0.0155 mm (0.60 × 10-4 in.) and 1.07 mm (0.042 in.),
respectively, and the volume fraction of fibers is 0.38. Assume
that (1) the fiber-matrix bond strength is 100 MPa (14,500 psi),
(2) the fracture strength of the fibers is 3500 MPa (5 × 105 psi),
and (3) the matrix stress at composite failure is 5.5 MPa (800
psi).
FIBER REINFORCED CONCRETE Explain the use of the following fibers: a) Steel b) Glass c) Natural...
FIBER REINFORCED CONCRETE
Explain the use of the following fibers:
a) Steel
b) Glass
c) Natural
d) Polymer
e) Asbestos
f) Carbon
Briefly describe one of the method of incorporating fibers into matrix (i.e. fiber reenforced composite manufacturing method
Briefly describe one of the method of incorporating fibers into matrix (i.e. fiber reenforced composite manufacturing method).
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