Which materials obey hookes law

The English scientist Robert Hooke discovered a law in , according to which the extension of a spring is directly proportional to the load deforming force applied to it. Under these conditions the object returns to its original shape and size upon removal of the load. In this expression F no longer means the applied force but rather means the equal and oppositely directed restoring force that causes elastic materials to return to their original dimensions.

When plotted on a graph, the line shows a direct variation. Stress is the force on unit areas within a material that develops as a result of the externally applied force. Strain is the relative deformation produced by stress. Need more help with Physics?

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Asked 3 years, 3 months ago. Active 3 years, 3 months ago. Viewed times. Improve this question. Sanjay Manohar Sanjay Manohar 4 4 bronze badges. It is not a fundamental law. Show 2 more comments. The property of a material by virtue of which it can be beaten or rolled into plates is called. Yield strength is:.

Suggested Test Series. Suggested Exams. More Strength of Materials Questions Q1. For a beam having cross-section as T, which is a correct statement? A cantilever of length 1. The bending moment at the center of the beam is 2 kNm.

A material yields under the following state of plane stress shown in the figure, as per Von Mises criterion, the yield stress of the material is:.