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What are the differences between stress and strain??

Answer» \t <div style="border:0px; margin:0px; padding:0in 5.4pt">S.no</div> <div align="center" style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">Stress</div> <div align="center" style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">Strain</div> <div style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">1.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">Stress is defined as the resisting force per unit area.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">Strain is defined as the deformation per unit area.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">2.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">The ratio of resisting force ( or applied load) to the cross section area of the body is called stress.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">The ratio of change in dimension of the body to the original dimension is called strain.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">3.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">Stress is denoted by the Greek symbol ‘σ’ ( sigma).</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">Strain is denoted by the symbol ‘e’.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">4.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">The formula of stress is given by</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">\xa0</div> <div style="border:0px; margin:0px; padding:0in 5.4pt"></div> \xa0 <div style="border:0px; margin:0px; padding:0in 5.4pt">The formula of strain is given by</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">\xa0</div> <div class="separator" style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center"></div> <div style="border:0px; margin:0px; padding:0in 5.4pt">\xa0</div> <div style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">5.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">The unit<a href="http://www.mechanicalbooster.com/2016/09/units-of-stress.html" style="border:0px; font-variant:inherit; font-stretch:inherit; line-height:inherit; font-family:inherit; font-style:inherit; font-weight:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:#289dcc; text-decoration-line:none" target="_blank"> </a>of<a href="http://www.mechanicalbooster.com/2016/09/units-of-stress.html" style="border:0px; font-variant:inherit; font-stretch:inherit; line-height:inherit; font-family:inherit; font-style:inherit; font-weight:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:#289dcc; text-decoration-line:none" target="_blank"> </a>stress is N/m2 or N/mm2.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">Strain is a unitless quantity.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">6.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">Stress can exist without strain.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">Strain cannot exist without stress.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt; text-align:center">7.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">The various types of stress are: tensile stress, compressive stress and shear stress.</div> <div style="border:0px; margin:0px; padding:0in 5.4pt">The various types of strain are: tensile strain, compressive strain, shear strain and volumetric strain.</div> \t<br>1.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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