Finding Shear Strain: Step-by-Step Guide

In summary, shear strain is a measure of a material's deformation in response to a shear stress, which is important in understanding its mechanical properties and predicting potential failure. The steps for finding shear strain involve determining initial and final lengths, calculating the change in length, and dividing by the original length. To measure shear strain, you will need a ruler or caliper and a device to apply shear stress. Shear strain differs from other types of strain in that it is caused by parallel forces and results in a change in shape rather than length or volume.
  • #1
archaic
688
214
Homework Statement
A square steel plate is 10.0 cm on a side and 0.500 cm thick.
Find the shear strain that results if a force of magnitude ##9.0\times10^5N## is applied to each of the four sides, parallel to the side. Plate is in equilibrium.
Find the displacement x in centimeters.
Relevant Equations
Shear stress ##=\frac FA##, shear strain ##=\frac xh##, ##S_\text{steel}=7.5\times10^{10}##
$$S=\frac FA\frac hx\Leftrightarrow\frac{F}{SA}=\frac xh=\text{shear strain}\\
\frac xh=\frac{9.0\times10^5}{10.0\times0.500\times10^{-4}\times7.5\times10^{10}}=1.2\times10^{-3}\\
x=1.2\times10^{-3}\times0.500=6.0\times10^{-4}\,cm$$
I'm doing something wrong, any help?
 
Physics news on Phys.org
  • #2
Both my answers are off by a factor of 2. Applying a force to two sides is equivalent to ##\text{Sheer stress}=2\frac FA##? I think that I have been mislead by this:
Capture.PNG
 

1. What is shear strain?

Shear strain is a measure of the deformation or distortion that occurs in a material when it is subjected to a force that is parallel to its surface.

2. Why is it important to measure shear strain?

Measuring shear strain is important in understanding the mechanical behavior of materials, as it can help determine their strength, stiffness, and ability to withstand stress.

3. How do you calculate shear strain?

Shear strain can be calculated by dividing the change in length or displacement of a material by its original length or displacement. This can be represented by the formula: γ = Δx/x

4. What are the steps involved in finding shear strain?

The steps involved in finding shear strain include: 1) measuring the original length or displacement of the material, 2) applying a force parallel to the surface of the material, 3) measuring the change in length or displacement caused by the force, and 4) using the formula γ = Δx/x to calculate shear strain.

5. What are some common methods used to measure shear strain?

Some common methods used to measure shear strain include strain gauges, extensometers, and digital image correlation. These methods involve measuring the change in length or displacement of a material when subjected to a force, and then using this data to calculate shear strain.

Similar threads

  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
1
Views
559
  • Introductory Physics Homework Help
Replies
26
Views
848
  • Introductory Physics Homework Help
Replies
3
Views
3K
  • Introductory Physics Homework Help
Replies
1
Views
5K
  • Introductory Physics Homework Help
Replies
16
Views
2K
  • Introductory Physics Homework Help
Replies
4
Views
986
  • Introductory Physics Homework Help
Replies
8
Views
594
  • Introductory Physics Homework Help
Replies
23
Views
352
  • Introductory Physics Homework Help
Replies
2
Views
2K
Back
Top