Strain energy is stored in any deformed material during deformation. Which of the following statements regarding strain energy are true?

Question

Quizplus · Accepted Answer

Choice A is true, as elastic strain energy is the energy stored in a material when it is deformed elastically, meaning that it can be recovered when the material returns to its original shape. In contrast, plastic strain energy is the energy stored in a material when it is deformed plastically, meaning that it cannot be fully recovered and is lost.

Choice C is also true, as the area under the stress-strain curve up to a given point is proportional to the strain energy stored in the material up to that point. This is known as the strain energy density and is often used in materials science and engineering to quantify the amount of strain energy stored in a material.

Choice D is also true, as strain energy can be stored in many different types of deformed materials, such as a trampoline bed, vaulting pole, shoe sole, protective equipment, or compressed ball. In all of these cases, the energy is stored in the material as a result of its deformation, and can be released or used when the material returns to its original shape or is subjected to an external force.

Strain Energy Is Stored in Any Deformed Material During Deformation