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
kiruha [24]
3 years ago
10

Consider a cubic workpiece of rigid perfect plastic material with side length lo. The cube is deformed plastically to the shape

of a rectangular parallelepiped of dimensions l1,l2, and l3. Show that the volume constancy requires that the following expression be satisfied: e1+e2+e3 = 0

Engineering
1 answer:
Taya2010 [7]3 years ago
8 0

Answer:  ε₁+ε₂+ε₃ = 0

Explanation: Considering the initial and final volume to be constant which gives rise to the relation:-

                         l₀l₀l₀=l₁l₂l₃

                        \frac{lo*lo*lo}{l1*l2*l3}=1.0

                      taking natural log on both sides

                              ln(\frac{(lo*lo*lo)}{l1*l2*l3})=ln(1)

Considering the logarithmic Laws of division and multiplication :

                                ln(AB) = ln(A)+ln(B)

                                ln(A/B) = ln(A)-ln(B)

                           ln(\frac{(l1)}{lo})*ln(\frac{(l2)}{lo})*ln(\frac{(l3)}{lo}) = 0

Use the image attached to see the definition of true strain defined as

                         ln(l1/1o)= ε₁

which then proves that ε₁+ε₂+ε₃ = 0

You might be interested in
The animation shows the circuit inside a speaker. The speaker cone vibrates as the current changes direction. This creates sound
I am Lyosha [343]

Answer:

The direction of the magnetic field around the coil reverses. The force on the cone now pulls it back in. Repeatedly alternating the current direction makes the cone vibrate in and out. The cone vibrations cause pressure variations in the air, which are sound waves.

Explanation:So as it goes back and forth it makes a sound from the vibration.

5 0
4 years ago
I dont undertand this coding problem (Java):
chubhunter [2.5K]

Check The Attachment.

Download java
6 0
4 years ago
• ¿Qué les reclamó Dios al pueblo?<br> • ¿Qué consecuencias hubo?
HACTEHA [7]

a quien alos israelitas

8 0
3 years ago
Carbon dioxide at 20°C flows in a pipe at a rate of 0.005 kg/s. Determine the minimum diameter required if the flow is laminar (
Vesna [10]

Answer:

the required diameter is 0.344 m

Explanation:

given data:

flow is laminar

flow of carbon dioxide Q = 0.005 Kg/s

for  flow to be laminar,  Reynold's number must be less than 2300 for pipe flow and it is given as

\frac{\rho VD}{\mu }

arrange above equation for diameter

\frac{\rho Q D}{\mu A }<2300

dynamic density of carbon dioxide = 1.47×10^{-5} Pa sec

density of carbon dioxide is 1.83 kg/m³

\frac{1.83\times 0.0056\times D}{1.47\times 10^{-5}\times \frac{\pi}{4} \times D^{2} }

\frac{1.83\times 0.0056}{1.47\times 10^{-5}\times \frac{\pi}{4} \times 2300}= D

D = 0.344 m

4 0
3 years ago
two pints of ethyl ether evaporate over a period of 1,5 hours. what is the air flow necessary to remain at 10% or less of ethyl
lesya692 [45]

The air flow necessary to remain at the lower explosive level is 4515. 04cfm

<h3>How to solve for the rate of air flow</h3>

First we have to find the rate of emission. This is solved as

2pints/1.5 x 1min

= 2/1.5x60

We have the following details

SG = 0.71

LEL = 1.9%

B = 10% = 0.1 a constant

The molecular weight is given as 74.12

Then we would have Q as

403*100*0.2222 / 74.12 * 0.71 * 0.1

= Q = 4515. 04

Hence we can conclude that the air flow necessary to remain at the lower explosive level is 4515. 04cfm

Read more on the rate of air flow on brainly.com/question/13289839

#SPJ1

7 0
2 years ago
Other questions:
  • In a vapor-compression refrigeration cycle, ammonia exits the evaporator as saturated vapor at -10°C. The refrigerant enters the
    15·1 answer
  • Name one challenge for engineering managers wanting to implement the concurrent engineering concept
    12·1 answer
  • Explain why many sustainable fishing and forestry practice depend on the actions of consumers like you.
    13·2 answers
  • Are we living in a simulation! <br> True <br> False
    12·2 answers
  • 4.54 Saturated liquid nitrogen at 600 kPa enters a boiler at a rate of 0.008 kg/s and exits as saturated vapor (see Fig. P4.54).
    13·1 answer
  • A(n) ____ is an object setting used to control the visible display of objects.
    15·1 answer
  • Replace the black box portion of the circuit with the Norton's equivalent circuit. ______ for the load can now be calculated usi
    12·1 answer
  • How does a Red Team versus Blue Team exercise help an organization?
    9·1 answer
  • What is the minimum level of isolation required on T2 such that T2 never sees a value of zero in its output
    10·1 answer
  • (20%) machining appears to play an important role in the manufacturing of this phone housing, but machining is a relatively slow
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!