Stress-Strain Graph:Why Plot Strain~Stress?

In summary, a stress-strain graph is a graphical representation of the relationship between stress and strain for a material, with strain on the x-axis and stress on the y-axis. It is used to visualize how a material responds to external forces and determine its mechanical properties. The yield point is determined by drawing a parallel line to the initial linear portion and finding the intersection point. The graph provides information about a material's stiffness, strength, and ability to withstand stress. The slope of the linear portion, or modulus of elasticity, is an important measure of a material's stiffness and can be used for comparison.
  • #1
haraigcar
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I have a very fundamental doubt regarding the stress strain graph for many materials..Normally we plot strain ~stress in the graph..but it seems that stress is the independent variable and strain is the dependent variable..but still why nowhere i have found the curve as stress~strain..can anybody please tell me the reason?
 
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  • #2

Related to Stress-Strain Graph:Why Plot Strain~Stress?

1. What is a stress-strain graph?

A stress-strain graph is a graphical representation of the relationship between stress and strain for a particular material. It shows how a material responds to external forces, such as tension or compression, and how much it can be deformed before breaking.

2. Why is strain plotted on the x-axis and stress on the y-axis?

In a stress-strain graph, the x-axis represents strain, which is a measure of how much a material is deformed in response to stress. The y-axis represents stress, which is a measure of the amount of force applied to a material. Plotting strain on the x-axis and stress on the y-axis allows for a clear visualization of the relationship between the two variables.

3. How is the yield point determined on a stress-strain graph?

The yield point on a stress-strain graph is the point at which a material starts to deform plastically, meaning it does not return to its original shape when the stress is removed. It is determined by drawing a line parallel to the initial linear portion of the graph and finding the intersection point with the curve.

4. What information can be obtained from a stress-strain graph?

A stress-strain graph provides information about the mechanical properties of a material, such as its stiffness, strength, and ductility. It can also help determine the material's ability to withstand different types of stress, such as tension or compression.

5. Why is the slope of the linear portion of the stress-strain graph important?

The slope of the linear portion of the stress-strain graph, also known as the modulus of elasticity, is an important measure of a material's stiffness. It represents the material's resistance to deformation under stress and can be used to compare the properties of different materials.

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