every material obeys the hooke’s law within: question 3 options: elastic and plastic region until tensile stress until yield point limit of proportionality

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Answer 1

Every material obeys Hooke's law within the limit of proportionality.

Hooke's law is a principle in physics that describes the behavior of linear elastic materials. It states that the strain (deformation) of a material is directly proportional to the stress (force per unit area) applied to it, as long as the material remains within its elastic limit.

The limit of proportionality is the point beyond which the relationship between stress and strain is no longer linear. In other words, once the applied stress exceeds the limit of proportionality, the material starts to exhibit non-linear behavior, and Hooke's law no longer applies.

Within the elastic region, a material will exhibit a linear stress-strain relationship, as predicted by Hooke's law. However, this linear behavior only holds true until the limit of proportionality is reached. Beyond this point, the material may undergo plastic deformation or exhibit non-linear behavior, indicating that it has exceeded its elastic limit. Understanding the limit of proportionality is important in engineering and material science, as it helps determine the safe operating conditions and design limits for structures and components.

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