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
Radda [10]
3 years ago
12

Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an el

liptically shaped surface crack of length 0.54 mm and having a tip radius of curvature of 3.4 × 10−3 mm when a stress of 1050 MPa is applied
Physics
1 answer:
Nutka1998 [239]3 years ago
4 0

Answer:

The theoretical fracture strength of a brittle material is 26465.29 MPa.

Explanation:

Given that,

Length = 0.54 mm

Radius curvature R=3.4\times10^{-3}\ mm

Stress = 1050 MPa

We need to calculate the theoretical fracture strength of a brittle material

Using formula of strength

\sigma_{m}=2\sigma_{0}(\dfrac{l}{\rho_{t}})^{\frac{1}{2}}

Where, l = length of the crack

\rho_{t}= tip radius of curvature

Put the value into the formula

\sigma_{m}=2\times1050\times(\dfrac{0.54}{3.4\times10^{-3}})^{\frac{1}{2}}

\sigma_{m}=26465.29\ MPa

Hence, The theoretical fracture strength of a brittle material is 26465.29 MPa.

You might be interested in
You should always wear your seat belt just in case the car comes to an abrupt stop. The seat belt will hold you in place so that
Gwar [14]
Newtons 1st law of motion states that the object will continue to move at its present speed and direction until an outside force acts upon it.
 
So unless the objects inside the car are restrained, they will continue moving at whatever speed the car is traveling at, even if the car is stopped by a crash.

5 0
3 years ago
Read 2 more answers
How do two sublevels of the same principal energy level differ from each other
Colt1911 [192]

Each energy sublevel corresponds to an orbital of a different shape.

Explanation:

Two sublevels of the same principal energy level differs from each other if the sublevels corrresponds to an orbital of a different shape.

  • The principal quantum number of an atom represents the main energy level in which the orbital is located or the distance of an orbital from the nucleus. It takes values of n = 1,2,3,4 et.c
  • The secondary quantum number gives the shape of the orbitals in subshells accommodating electrons.
  • The number of possible shapes is limited  by the principal quantum numbers.

Take for example, Carbon:

                      1s² 2s² 2p²

   The second energy level is 2 but with two different sublevels of s and p. They have different shapes. S is spherical and P is dumb-bell shaped .

Learn more:

Quantum number brainly.com/question/9288609

#learnwithBrainly

7 0
3 years ago
To fill the medication prescription, what information must the pharmacy technician need to obtain? A. The name of the medication
shepuryov [24]
C. Patient info, name of med, dosage & route, special instructions, prescriber’s DEA#, and number of refills
3 0
3 years ago
Which color has the lowest frequency?
Svet_ta [14]
<h2>RED!</h2><h3></h3><h3>On the visible spectrum, red has the lowest frequency.</h3><h3>(I'm an amateur astronomer, so I would know.)</h3>
4 0
3 years ago
Will mark as brainliest if correct!!!!!!!!!!!
Aneli [31]

Answer:

The answer is A.

Explanation:

The diagram shows the light ray bending away from the normal. Light rays bend away from the normal when their speed increases. This means that in the diagram, the light ray moves from a medium in which light has a lower speed to a medium in light has a higher speed. The only choice where the speed of light increases from A to B is answer A. So that has to be the answer.

7 0
3 years ago
Other questions:
  • Find the time t it takes the current to reach 99.999% of its maximum value. assume that r=10 ohms and l=50 millihenrys.
    6·1 answer
  • Urgent please physic
    13·1 answer
  • How many meters are in a gigameter?
    8·1 answer
  • on a recent adventure trip, Anita Break went rock climbing. Anita was able to perform 1370 J of work in 100 seconds. Determine A
    12·1 answer
  • A push or pull that causes an object's motion to change is called _____
    11·1 answer
  • What you can see with the naked eye versus what needs magnification to be seen characterizes the contrast of which of the follow
    7·1 answer
  • Two different simple harmonic oscillators have the same natural frequency (f=8.80 Hz) when they are on the surface of the Earth.
    14·1 answer
  • Question 8: Unspooling Thread (100 points) A 110 g spool of thread with a 4.2 cm radius is held up by a peg through its center a
    13·1 answer
  • How is an image from a CT scan made from 2D X-ray images?
    5·2 answers
  • The linear expansivity of a metal p Is twice that of metal q. When these metals are heated through the same temperature, their i
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!