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What is a strain in physics?
What is the difference between stress and strain?
What is shear strain?
Why is strain a dimensionless quantity?
To know the stress and strain definition along with examples, visit BYJU’S. Also, learn about stress-strain curve and SI units of stress-strain.
- Young's Modulus
In this article, let us learn about modulus of elasticity...
- Compressive Stress
Compressive stress is defined as the force that results in a...
- Yield Strength
What is Yield Strength? The yield strength decides whether...
- Plastic Deformation
Deformation often referred to strain, is the change in the...
- Elastic Properties
Elastic Behavior Of Solids - What is the difference between...
- Young's Modulus
Strain: Strain is defined as the ratio of change in dimensions of the body to its original dimensions. `"Strain" = "change in dimensions"/"original dimensions"`
- Properties of Solids
- Stress
- Strain
- Hooke’s Law
- Stress-Strain Curve
- Solved Example For You
Intermolecular Force
In a solid, atoms and molecules are arranged in a way that neighbouring molecules exert a force on each other. These forces are intermolecular forces.
Elasticity
A body regains its original configuration (length, shape or volume) after you remove the deforming forces. This is elasticity.
Perfectly Elastic Body
A perfectly elastic body regains its original configuration immediately and completely after the removal of deforming force from it. Quartz and phosphor bronze are the examples of nearly perfectly elastic bodies.
It is the ratio of the internal force F, produced when the substance is deformed, to the area A over which this force acts. In equilibrium, this force is equal in magnitude to the externally applied force. In other words, The SI Unit of stress is newton per square meter (Nm-2).In CGS units, stress is measured in dyne-cm-2. Dimensional formula of st...
It is the ratioof the change in size or shape to the original size or shape. It has no dimensions, it is just a number.
Hooke’s law states that, within elastic limits, the ratio of stress to the corresponding strain produced is a constant. This constant is called the modulus of elasticity. Thus,
Stress-strain curves are useful to understand the tensile strength of a given material. The given figure shows a stress-strain curve of a given metal. 1. The curve from O to A is linear. In this region, the material obeys the Hooke’s Proportional limit law. 2. In the region from A to C stress and strain are not proportional. Still, the body regains...
Q: A and B are two steel wires and the radius of A is twice that of B, if we stretch them by the same load, then the stress on B is: 1. Four times that of A 2. Two times that of A 3. Three times that of A 4. Same Sol: A) Since stress is inversely proportional to the area, and the area is proportional to the square of the radius, then we can write: ...
5 days ago · Stress and strain have a straight proportional relationship up to an elastic limit. The relationship between stress and strain is explained by Hooke's law. Hooke's law states that the strain in a solid is proportional to the applied stress, which must be within the solid's elastic limit.
Mar 31, 2023 · A strain is the response of a system to an applied stress. When a material is loaded with a force, it produces a stress, which then causes a material to deform. We are giving a detailed and clear sheet on all Physics Notes that are very useful to understand the Basic Physics Concepts.
What is strain? Define different types of strains. When we apply deforming force on a body, the shape of the body changes and body is said to be strained. Strain is measured as the ratio of change in configuration to the original configuration.
shearing stress. As a result of applied tangential force, there is a relative displacement ∆x between opposite faces of the cylinder as shown in the Fig. 8.1(b). The strain so produced is known as shearing strain and it is defined as the ratio of relative displacement of the faces ∆x to the length of the cylinder L.