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
Ket [755]
3 years ago
11

A structural component in the shape of a flat plate 29.6 mm thick is to be fabricated from a metal alloy for which the yield str

ength and plane strain fracture toughness values are 535 MPa and 38.5 MPa-m1/2, respectively. For this particular geometry, the value of Y is 1.5. Assuming a design stress of 0.5 times the yield strength, calculate the critical length of a surface flaw. mm
Engineering
1 answer:
slega [8]3 years ago
8 0

Answer:

2.93 mm

Explanation:

Plane strain fracture toughness K_{IC}=38.5 Mpa\sqrt{m}

Yield strength, \sigma=535 Mpa

Design stress=0.5*535=267.5 Mpa

Dimensionless parameter Y=1.5

Critical length of surface flaw is given by

a_c=\frac {1}{\pi}\times (\frac {K_{IC}}{Y\sigma})^{2}=\frac {1}{\pi}\times (\frac {38.5}{1.5*267.5})^{2}= 0.00293\approx 2.93 mm

You might be interested in
g A pedometer treats walking 2,000 steps as walking 1 mile. Write a program whose input is the number of steps, and whose output
Nataly [62]

Answer:

# Program is written in Python Programming Language

# Comments are used for explanatory purpose

# Program starts here

# Accept input

Steps = input (Number of Steps: ")

# Calculate distance

distance = float(2000) * float(steps)

#Print Formatted Result

print('%0.2f' % distance)

# End of Program

.--------

The above program converts number of steps to miles.

At line 5, the number of steps is inputted and stored in variable named Steps.

At line 6, the number of miles is calculated by multiplying 2000 by the content of variable Steps

The result is printed at line 8

8 0
3 years ago
Read 2 more answers
Describe each occupation
vitfil [10]

Answer:

Carpenter — A carpenter is someone who works with wood. They build houses and make cabinets etc.

Logging —  Loggers are people who cut trees. They use strong chain saws to cut trees.

Shipwrights — Shipwrights build, design, and repair all sizes of boats.

Wood Machinist — Wood Machinists repair and cut timber or any kind of wood for construction projects. They also operate woodworking machines, as their name suggest.

Furniture finishers —  Furniture finishers shape, decorate, and restore damaged and worn out furniture.

5 0
2 years ago
A 20-mm-diameter steel bar is to be used as a torsion spring. If the torsional stress in the bar is not to exceed 110 MPa when o
ch4aika [34]

Answer:

1.887 m

Explanation:

(15 *pi)/180

= 0.2618 rad

Polar moment

= Pi*d⁴/32

= (22/7*20⁴)/32

= 15707.96

Torque on shaft

= ((22/7)*20³*110)/16

= 172857.14

= 172.8nm

Shear modulus

G = 79.3

L = Gjθ/T

= 79.3x10⁹x(1.571*10^-8)x0.2618/172.8

= 1.887 m

The length of the bar is therefore 1.887 meters

5 0
3 years ago
A resistance of 30Ω is placed in a circuit with a 90 volt battery. What current flows in the circuit?
Svetlanka [38]

Answer:

30 Amperes

Explanation:

if    V ⇒ voltage

      I ⇒ current

      R ⇒ resistance

V = IR

90 = I x 30

90/30 = I

3 = I

6 0
2 years ago
What does the line strung between the batter boards represent?
soldi70 [24.7K]

Batter boards (or battre boards, Sometimes mispronounced as "battle boads") are temporary frames, set beyond the corners of a planned foundation at precise elevations. These batter boards are then used to hold layout lines (construction twine) to indicate the limits (edges and corners) of the foundation.

7 0
2 years ago
Read 2 more answers
Other questions:
  • The 30-kg gear is subjected to a force of P=(20t)N where t is in seconds. Determine the angular velocity of the gear at t=4s sta
    9·1 answer
  • A forklift raises a 90.5 kg crate 1.80 m. (a) Showing all your work and using unity conversion ratios, calculate the work done b
    14·2 answers
  • What can your employer do to protect you from overhead power lines?
    8·1 answer
  • Find the pressure exerted by the water bed on the floor when the bed rests in its normal position. Assume the entire lower surfa
    12·1 answer
  • Discuss the impact of the changing urban center. Include the impacts on political, economic, and social roles and opportunities.
    12·1 answer
  • Item110pointseBook HintPrintReferences Check my work Check My Work button is now disabled5Item 1Item 1 10 pointsAn ideal Diesel
    10·1 answer
  • In the given circuit, V(t)=12cos(2000t+45)V, R1=R2=2Ω, L1=L2=L3=3mH and C1=250μF. You are required to find the Thevenin equivale
    7·1 answer
  • A piston–cylinder device contains 0.78 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic
    11·1 answer
  • Carbon dioxide (CO2) expands isothermally at steady state with no irreversibilities through a turbine from 10 bar, 500 K to 2 ba
    15·1 answer
  • How do i play Fortnite on controller?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!