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The stress-strain diagram provides a graphical measurement of the strength and elasticity of the material. Also, the behaviour of the materials can be studied with the help of the stress-strain diagram, which makes it easy to understand the application of these materials.
Knowing the original cross-sectional area and length of the specimen, the normal stress σ and the strain ε can be obtained. The graph of these quantities with the stress σ along the y-axis and the strain ε along the x-axis is called the stress-strain diagram.
In engineering and materials science, a stress–strain curve for a material gives the relationship between stress and strain. It is obtained by gradually applying load to a test coupon and measuring the deformation, from which the stress and strain can be determined (see tensile testing).
The engineering measures of stress and strain, denoted in this module as σe and εe respectively, are determined from the measured the load and deflection using the original specimen cross-sectional area A0 and length L0 as. σe = P A0, ϵe = δ L0.
Stress and strain are two closely linked parameters – it makes sense that the internal forces that develop within a body (stress) depend on how much the body is being deformed (strain). The relationship between these two parameters can be described using a stress-strain diagram .
In the language of physics, two terms describe the forces on objects undergoing deformation: stress and strain. Stress is a quantity that describes the magnitude of forces that cause deformation. Stress is generally defined as force per unit area.
Explain the concepts of stress and strain in describing elastic deformations of materials; Describe the types of elastic deformation of objects and materials