What is the difference between strain and stress

There are two types of strain: tensile strain and compressive strain. The tensile strain occurs due to tensile stress, while compressive strain occurs due to compressive stress. The key difference between stress and strain in physics is that stress is the force experienced by an object which causes a change in the object, whereas strain is the change in the shape of the object when stress is applied.

Moreover, stress is measurable and has a unit of measurement, while strain is a dimensionless quantity and has no unit. With a mind rooted firmly to basic principals of chemistry and passion for ever evolving field of industrial chemistry, she is keenly interested to be a true companion for those who seek knowledge in the subject of chemistry.

Your email address will not be published. Stress vs Strain of Ductile Material. Stress can happen with out strain, but strain cannot happen without stress. Look at this rock I am squeezing in my hand.

Is it stressed? Yes, it is under pressure. Is it strained? No, it hasn't changed shape. Now look at this rock with a fold in it. Is it under stress? No, it is not under pressure. Is it straining? No, it isn't currently changing shape. Does it have structure? Yes, there is a fold. Strain rate: If I pull it apart quickly it breaks, but if I pull it slowly, it stretches deforms plastically. Type of stress: Finally, pick a strong student, and have him or her try to break the silly putty using compressive stress.

As you can see, this is almost impossible. Now have a student try to break it using tension. This is much easier. Most materials are more easily broken or otherwise deformed in tension than in compression; we say that they are weaker in tension, or stronger in compression.

Faults are places where rocks have been broken and offset. August 29, July 10, October 21, Great information on what is difference between strain and stress. Very Insightful. You can also read to know more about Commercial Interior. Your email address will not be published. The ratio of change in dimension of the body to the original dimension is called strain.

The formula of stress is given by The formula of strain is given by. Related Posts: What is Heat Exchanger? Leave a Comment Cancel Reply Your email address will not be published. The formula of stress is given by.