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What are the differences between stress and strain?? |
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Answer» \t S.no Stress Strain 1. Stress is defined as the resisting force per unit area. Strain is defined as the deformation per unit area. 2. The ratio of resisting force ( or applied load) to the cross section area of the body is called stress. The ratio of change in dimension of the body to the original dimension is called strain. 3. Stress is denoted by the Greek symbol ‘σ’ ( sigma). Strain is denoted by the symbol ‘e’. 4. The formula of stress is given by \xa0 \xa0 The formula of strain is given by \xa0 \xa0 5. Strain is a unitless quantity. 6. Stress can exist without strain. Strain cannot exist without stress. 7. The various types of stress are: tensile stress, compressive stress and shear stress. The various types of strain are: tensile strain, compressive strain, shear strain and volumetric strain. \t1.Stress is defined as a force that can cause a change in an object or a physical body while strain is the change in the form or shape of the object or physical body on which stress is applied.2.Stress can occur without strain, but strain cannot occur with the absence of stress.3.Stress can be measured and has a unit of measure while strain does not have any unit and, therefore, cannot be measured.4.Strain is an object’s response to stress while stress is the force that can cause strain in an object.5.Stress comes from the Latin word “strictus” which means “to draw tight” while “strain” comes from the Latin word “stringere” which means “to bind tightly.” |
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