Question

Determine the tensile strength (engineering stress in pounds per square inch, psi) for the following material: σ = 10000 + 20000ε where true Stress is σ , and ε is true strain

Answer #1

where

σ = 10000 + 20000ε

**tensile
strength (engineering stress in pounds per square inch, psi) =
10000**

**if you have nay
doubts please comment. I will reply ASAP**

A concrete mix is designed to withstand 3000 pounds per square
inch (psi) of pressure. The following data represent the strength
of nine randomly selected casts (in psi). 3960, 4090, 3200,
3100, 2940, 3840, 4090, 4030, 3510 Compute the mean, median
and mode strength of the concrete (in psi).

For a given alloy, the condition for necking dσ = σ is met at
a true stress of
dε 350 MPa (50.7 ksi) and a true strain of 0.50.
(a) Determine the corresponding values for the ultimate
tensile strength and the engineering strain at necking.
(b) What is the work per unit of volume required to strain
this alloy to the point of necking, assuming that σ = kεn?

A construction firm thinks that it is receiving 100 steel pipes
with an average tensile strength of 10,000 pounds per square
inch(lbs p.s.i.).This is the mean,μ.The size of the sample was
n=100.The firm also knows that the population standard
deviation,sigma,σ,is 400 p.s.i.The firm chooses a confidence
interval of 95 %.This is equivalent to a level of significance,α,of
5 %(.05),where the null hypothesis is
H0:μ0=10,000 and the alternative hypothesis
is H1:μ0≠10,000.The company does not know
that the actual, average tensile strength...

A construction firm thinks that it is receiving 100 steel pipes
with an average tensile strength of 10,000 pounds per square
inch(lbs p.s.i.).This is the mean,μ.The size of the sample was
n=100.The firm also knows that the population standard
deviation,sigma,σ,is 400 p.s.i.The firm chooses a confidence
interval of 95 %.This is equivalent to a level of significance,α,of
5 %(.05),where the null hypothesis is
H0:μ0=10,000 and the alternative hypothesis
is H1:μ0≠10,000.The company does not know
that the actual, average tensile strength...

A local tennis pro-shop strings tennis rackets at the tension
(pounds per square inch) requested by the customer. Recently a
customer made a claim that the pro-shop consistently strings
rackets at lower tensions, on average, than requested. To support
this claim, the customer asked the pro shop to string 6 new rackets
at 68 psi. Suppose the two-tailed P-value for the test described
above (obtained from a computer printout) is 0.07. Find the
conclusion for the test at the 5%...

As concrete cures, it gains strength. The following data
represent the 7-day and 28-day strength in pounds per square
inch (psi) of a certain type of concrete.
7-Day_Strength_(psi)_-_x
28-Day_Strength_(psi)_-_y
2300 4070
3380 5020
2620 4190
3390 5220
3330 4850
(a) Treating the 7-day strength as the
explanatory variable, x, use technology to determine the estimates
of β0 and β1.
β0≈b0=__?__
(Round to one decimal place as needed.)
β1≈b1=__?__
(Round to four decimal places as needed.)

As concrete cures, it gains strength. The following data
represent the 7-day and 28-day strength in pounds per square
inch (psi) of a certain type of concrete. Complete parts (a)
through (f) below. 7-Day Strength (psi), x 3380 3330 2620 2300
3390 28-Day Strength (psi), y 5020 4850 4190 4070 5220 (a)
Treating the 7-day strength as the explanatory variable, x, use
technology to determine the estimates of beta 0 and beta 1. beta
0almost equalsb 0equals nothing (Round to...

As concrete cures, it gains strength. The following data
represent the 7-day and 28-day strength in pounds per square
inch (psi) of a certain type of concrete.
7-Day_Strength_(psi)_-_x
28-Day_Strength_(psi)_-_y
3390 5220
3340 4630
2300 4070
2480 4120
3380 5020
(a) Treating the 7-day strength as the
explanatory variable, x, use technology to determine the estimates
of β0 and β1.
β0≈b0=1981.5
(Round to one decimal place as needed.)
β1≈b1=0.8833
(Round to four decimal places as needed.)
b) Compute the standard error...

As concrete cures, it gains strength. The following data
represent the 7-day and 28-day strength in pounds per square
inch (psi) of a certain type of concrete.
7-Day_Strength_(psi)_-_x
28-Day_Strength_(psi)_-_y
2300 4070
3380 5020
2620 4190
3390 5220
3330 4850
(a) Treating the 7-day strength as the explanatory variable,
x, use technology to determine the estimates of β0 and β1.
β0≈b0=1753.9
(Round to one decimal place as needed.)
β1≈b1=0.9707
(Round to four decimal places as needed.)
Se=150.6
(Round to one decimal...

A quality controller measures tensile stress (kg per
cm2) of a metal fastener in thirty samples of size 7.
The following is a summary of the collected data.
i=1i=30xi = 12,780 and
i=1i=30Ri=1530
where xi = average
and Ri = range of sample i. The quality
controller finds that R chart is in control and now wants to
construct x-bar R chart.
Determine an unbiased estimate of the standard deviation of
tensile stress of metal fasteners.
Determine the three-sigma upper...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 14 minutes ago

asked 28 minutes ago

asked 30 minutes ago

asked 34 minutes ago

asked 38 minutes ago

asked 40 minutes ago

asked 43 minutes ago

asked 44 minutes ago

asked 44 minutes ago

asked 45 minutes ago

asked 55 minutes ago

asked 1 hour ago