What does a stress strain graph show?

Stress strain curves visually display the material’s deformation in response to a tensile, compressive, or torsional load. Depending on the material being tested, a stress strain curve can indicate key properties of the material including its elastic region, plastic region, yield point, and ultimate tensile strength.

What is Hooke’s Law describe stress strain graph?

Hooke’s law shows that the force needed to the material to expand or compress by some distance. The stress and strain diagram shows that the behaviour of the material under the gradual increase of the load. The stress and diagram can be drawn for all the material, to know its behaviour under different load conditions.

What is yield point in stress strain graph?

7.4, the yield point is a point on the stress–strain curve beyond which the material enters the phase of nonlinear pattern and irrecoverable strain or permanent (plastic) tensile deformation. The yield point is defined by the corresponding yield stress and yield strain.

What is the relation between stress and strain?

Hooke’s law explains the relationship between stress and strain. According to Hooke’s law, the strain in a solid is proportional to the applied stress and this should be within the elastic limit of that solid.

What is point C in stress-strain curve?

Option (C) Breaking point: The stress corresponding to this point is known as breaking strength. You can see the same in the below graph of stress and strain.

What is proportional limit in stress-strain curve?

The proportional limit is the point on a stress-strain curve where the linear, elastic deformation region transitions into a non-linear, plastic deformation region. In other words, the proportional limit determines the greatest stress that is directly proportional to strain.

What is upper and lower yield point?

A point at which Maximum load or stress required to initiate the plastic deformation of material such point is called as Upper yield point. And a point at which minimum load or stress required to maintain the plastic behavior of material such a point is called as Lower yield point.

What is relation between stress and strain?

What is elastic limit and yield point?

The yield point, alternatively called the elastic limit, marks the end of elastic behaviour and the beginning of plastic behaviour. When stresses less than the yield point are removed, the material returns to its original shape.

What is difference between proportional limit and elastic limit?

Difference Between Elastic Limit and Proportional Limit Another key difference is that in the case of elastic limit the stress and strain possess a linear relationship, while in the case of the proportional limit it does not matter if the relationship between the stress and strain is linear or not.