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
Tanzania [10]
3 years ago
10

Determine (a) the principal stresses and (b) the maximum in-plane shear stress and average normal stress at the point. Specify t

he orientation of the element in each case. 60 45 30
Engineering
1 answer:
raketka [301]3 years ago
5 0

Answer:

a) 53 MPa,  14.87 degree

b) 60.5 MPa  

Average shear = -7.5 MPa

Explanation:

Given

A = 45

B = -60

C = 30

a) stress P1 = (A+B)/2 + Sqrt ({(A-B)/2}^2 + C)

Substituting the given values, we get -

P1 = (45-60)/2 + Sqrt ({(45-(-60))/2}^2 + 30)

P1 = 53 MPa

Likewise P2 = (A+B)/2 - Sqrt ({(A-B)/2}^2 + C)

Substituting the given values, we get -

P1 = (45-60)/2 - Sqrt ({(45-(-60))/2}^2 + 30)

P1 = -68 MPa

Tan 2a = C/{(A-B)/2}

Tan 2a = 30/(45+60)/2

a = 14.87 degree

Principal stress

p1 = (45+60)/2 + (45-60)/2 cos 2a + 30 sin2a = 53 MPa

b) Shear stress in plane

Sqrt ({(45-(-60))/2}^2 + 30) = 60.5 MPa

Average = (45-(-60))/2 = -7.5 MPa

You might be interested in
Errors in the output voltage of an actual integrated circuit operational amplifier can be caused by : Select one:
natta225 [31]

Answer:

Option B

Explanation:

An operational amplifier usually has a high open loop gain of around 10^5 which allows a wide range get of feed back levels in order to achieve the desired performance so therefore a low open loop gain reduces the range feed back level thereby reducing the performance which can cause errors in the output voltage.

7 0
3 years ago
A material point in equilibrium has 1 independent component of shear stress in the xz plane. a)True b)- False
ozzi

Answer:

True

Explanation:

For point in xz plane the stress tensor is given by\left[\begin{array}{ccc}Dx_{} &txz\\tzx&Dz\\\end{array}\right]

where Dx is the direct stress along x ; Dz is direct stress along z ;  tzx and txz are the  shear stress components

We know that the stress tensor matrix is symmetrical which means that tzx = txz  ( obtained by moment equlibrium )

thus we require only 1 independent component of shear stress to define the whole stress tensor at a point in 2D plane

8 0
3 years ago
Sensors are used to monitor the pressure and the temperature of a chemical solution stored in a vat. The circuitry for each sens
JulsSmile [24]
Circle because it’s round and we all love round things
5 0
3 years ago
A pumping test was made in pervious gravels and sands extending to a depth of 50 ft. ,where a bed of clay was encountered. The n
Vikki [24]

Answer:per minute from the pumping well, a steady state was attained in about 24 hr. The draw-down at a distance of 10 ft. was 5.5 ft. and at 25 ft. was 1.21 ft.

Explanation:

6 0
3 years ago
A mixture of air and methane is formed in the inlet manifold of a natural gas-fueled internal combustion engine. The mole fracti
german

Answer:

The mass flow rate of the mixture in the manifold is 6.654 kg/min

Explanation;

In this question, we are asked to calculate mass flow rate of the mixture in the manifold

Please check attachment for complete solution and step by step explanation.

4 0
3 years ago
Other questions:
  • What Type of diploma do you need in order To the get into JMU
    12·1 answer
  • There are a number of requirements that employers must do to protect their workers from caught-in or
    12·1 answer
  • Explain the differences among sand, silt, and clay, both in their physical characteristics and their behavior in relation to bui
    15·1 answer
  • What do machines require in order to work?
    12·1 answer
  • B)<br>State the essential difference between a plain carbon steel<br>and an alloy steel​
    15·1 answer
  • How much energy in joule is added to a 12 g of sample of aluminum (c=0.897 J/g ◦C) to raise the temperature from 20 ◦C to 45 ◦C?
    14·1 answer
  • On some engines after torquing cylinder head fasteners you must
    12·1 answer
  • Determine the initial void ratio, the relative density and the unit weight (in pounds per cubic foot) of the specimens for each
    6·1 answer
  • Where would the impossible amount of product 1 and 2 points intersect on the production possibility curve
    6·1 answer
  • In order to live and grow, bacteria need moisture, food, the right temperature, and ______? Fill in the blank
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!