1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ann [662]
2 years ago
11

Can you help me with this task/homework.

Engineering
1 answer:
stiv31 [10]2 years ago
7 0
The answer should be B if I’m right
You might be interested in
A teenage brain is already fully developed to enable us to manage risks effectively.
Kisachek [45]

Answer:

false

Explanation:

the brain is only really fully devolved by age 26

3 0
2 years ago
Read 2 more answers
What do you mean by searching?​
nikitadnepr [17]

Answer:

thoroughly scrutinizing, especially in a disconcerting way.

Explanation:

8 0
3 years ago
Sketches are a very efficient way to share ideas.<br> True<br> False
timurjin [86]

Answer:

yes

Explanation:

4 0
3 years ago
Read 2 more answers
For some metal alloy, a true stress of 345 MPa (50040 psi) produces a plastic true strain of 0.02. How much will a specimen of t
saveliy_v [14]

Complete Question

For some metal alloy, a true stress of 345 MPa (50040 psi) produces a plastic true strain of 0.02. How much will a specimen of this material elongate when a true stress of 411 MPa (59610 psi) is applied if the original length is 470 mm (18.50 in.)?Assume a value of 0.22 for the strain-hardening exponent, n.

Answer:

The elongation is =21.29mm

Explanation:

In order to gain a good understanding of this solution let define some terms

True Stress

       A true stress can be defined as the quotient obtained when instantaneous applied load is divided by instantaneous cross-sectional area of a material it can be denoted as \sigma_T.

True Strain

     A true strain can be defined as the value obtained when the natural logarithm quotient of instantaneous gauge length divided by original gauge length of a material is being bend out of shape by a uni-axial force. it can be denoted as \epsilon_T.

The mathematical relation between stress to strain on the plastic region of deformation is

              \sigma _T =K\epsilon^n_T

Where K is a constant

          n is known as the strain hardening exponent

           This constant K can be obtained as follows

                        K = \frac{\sigma_T}{(\epsilon_T)^n}

No substituting  345MPa \ for  \ \sigma_T, \ 0.02 \ for \ \epsilon_T , \ and  \ 0.22 \ for  \ n from the question we have

                     K = \frac{345}{(0.02)^{0.22}}

                          = 815.82MPa

Making \epsilon_T the subject from the equation above

              \epsilon_T = (\frac{\sigma_T}{K} )^{\frac{1}{n} }

Substituting \ 411MPa \ for \ \sigma_T \ 815.82MPa \ for \ K  \ and  \  0.22 \ for \ n

       \epsilon_T = (\frac{411MPa}{815.82MPa} )^{\frac{1}{0.22} }

            =0.0443

       

From the definition we mentioned instantaneous length and this can be  obtained mathematically as follows

           l_i = l_o e^{\epsilon_T}

Where

       l_i is the instantaneous length

      l_o is the original length

Substituting  \ 470mm \ for \ l_o \ and \ 0.0443 \ for  \ \epsilon_T

             l_i = 470 * e^{0.0443}

                =491.28mm

We can also obtain the elongated length mathematically as follows

            Elongated \ Length =l_i - l_o

Substituting \ 470mm \ for l_o and \ 491.28 \ for \ l_i

          Elongated \ Length = 491.28 - 470

                                       =21.29mm

4 0
3 years ago
If the density of states function in the conduction band of a particular semiconductor is a constant equal to K, derive the expr
s2008m [1.1K]

Answer:

full details of the answer is attached

5 0
2 years ago
Other questions:
  • The Manufacturing sector is the only sector where Lean manufacturing philosophy can be applied. a)- True b)- False
    12·1 answer
  • 3 examples of technology transfer pls
    12·2 answers
  • The motion of a particle is defined by the relation x = t3 – 6t2 + 9t + 3, where x and t are expressed in feet and seconds, resp
    12·1 answer
  • The pressure distribution over a section of a two-dimensional wing at 4 degrees of incidence may be approximated as follows: Upp
    9·1 answer
  • Cite another example of information technology companies pushing the boundaries of privacy issues; apologizing, and then pushing
    9·1 answer
  • If an elevator repairer observes that cables begin to fray after 15 years, what process might he or she use to create a maintena
    11·1 answer
  • your friend's parents are worried about going over their budget for th month. Which expense would you suggest is NOT a need?
    9·1 answer
  • A 1020 Cold-Drawn steel shaft is to transmit 20 hp while rotating at 1750 rpm. Calculate the transmitted torque in lbs. in. Igno
    6·1 answer
  • Describe the meaning of the different symbols and abbreviations found on the documents that they use
    11·1 answer
  • What car is this? I thinks its a nissan 240sx but i dont know
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!