Question
In: Mechanical Engineering
Plot longitudinal tensile strength of an E-glass/epoxy unidirectionally reinforced composite as a function of volume fraction...
Plot longitudinal tensile strength of an E-glass/epoxy unidirectionally reinforced composite as a function of volume fraction of fiber and assuming tensile strength follows a volume rule of additivity.
E-glass: modulus = 72.4 GPa, tensile break strength = 2.4 GPa, break strain = 2.6%
epoxy: modulus = 3.5 GPa, tensile break strength = 45 MPa, break strain = 1.28%
Solutions
samet mamat answered 2 years agoRelated Solutions
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).
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.
An engineer studying the tensile strength of a composite material knows that tensile strength is approximately...
An engineer studying the
tensile strength of a composite material knows that tensile
strength is approximately normally distributed with
σ = 60 psi. A random sample of 20 specimens has a mean
tensile strength of 3450 psi.
(a) Test the hypothesis that
the mean tensile strength is 3500 psi, using α =
0.01
(b) What isthe smallest level
of significance at which you would be willing to reject the null
hypothesis?
(c) What is the β error for
the test...
Do some internet research on the properties of composite materials. a) Compare the tensile strength of...
Do some internet research on the properties of composite
materials. a) Compare the tensile strength of a typical
glass fibre reinforced polymer with the tensile strength of a
carbon fibre reinforced polymer. Make sure you the fibre lay-up is
the same in your two examples and that you record what that is in
your answer. Use data tables from reputable engineering or
scientific web pages or material suppliers only and cite your
reference(s).
Answer:.......................................................................................................................
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.................................................................................................................................
b) Write a...
The volume of a glass bottle is 500.00 ml at 18 ◦C and the longitudinal coefficient...
The volume of a glass bottle is 500.00 ml at 18 ◦C and the
longitudinal coefficient of expansion of the glass are
8.0*10−6
1 / ◦C. Benzene has a density of 0.880 g / cm3 at 20 ◦C and its
volume expansion coefficient is 1.2 * 10−3
1 / ◦C. How much benzene mass (with 4 values) is contained in the
above-mentioned glass bottle at 28 ◦C?
(Answer 435.9 g)
Based on your observation of the reinforced beam’s tensile strength vs. the unreinforced beam, why do...
Based on your observation of the
reinforced beam’s tensile strength vs. the unreinforced beam, why
do we use steel in most structural concrete?
Derive the critical fiber volume fraction with respect to strength and explain what is it.
Derive the critical fiber volume fraction with respect to
strength and explain what is it.
The carbohydrates located in the extracellular matrix of animal cells function to add tensile strength and...
The carbohydrates located in the extracellular matrix of animal
cells function to add tensile strength and resiliency of connective
tissue and for cell-cell communication. Which of the following
represents molecules partially made from carbohydrates that are
found in the extracellular matrix?
a.
Chondroitin sulphate, collagen, keratan sulphate, heparin, and
glycosphinolipids
b.
Chondroitin sulphate, hyaluronan, keratan sulphate, heparin, and
glycosphinolipids
c.
Chondroitin sulphate, hyaluronan, integrin, heparin, and
glycosphinolipids
d.
Chondroitin sulphate, hyaluronan, keratan sulphate, fibronectin,
and glycosphinolipids
e.
Collagen, hyaluronan, integrin,...
The carbohydrates located in the extracellular matrix of animal cells function to add tensile strength and...
The carbohydrates located in the extracellular matrix of animal
cells function to add tensile strength and resiliency of connective
tissue and for cell-cell communication. Which of the following
represents molecules partially made from carbohydrates that are
found in the extracellular matrix? Select one:
a. Chondroitin sulphate, collagen, keratan sulphate, heparin,
and glycosphinolipids
b. Chondroitin sulphate, hyaluronan, keratan sulphate, heparin,
and glycosphinolipids
c. Chondroitin sulphate, hyaluronan, integrin, heparin, and
glycosphinolipids
d. Chondroitin sulphate, hyaluronan, keratan sulphate,
fibronectin, and glycosphinolipids
e. Collagen,...
A rectangular glass plate (Young's Modulus 70 GPa, Ultimate Tensile Strength 138 MPa, fracture Toughness Kic...
A rectangular glass plate (Young's Modulus 70 GPa, Ultimate
Tensile Strength 138 MPa, fracture Toughness Kic = 1.2 MPa.m0.5)
has a length of 200 mm, width of 100 mm and a thickness of 5 mm.
The plate is subjected to an in-plane tensile load across its
width.
(a) What is the maximum load the plate can carry ifit had no
flaws?
(b) What is the maximum flaw size that can be tolerated at the
centre of the plate before the...
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