Stress strain curve is the plot of stress and strain of a material or metal on the graph.
Stress strain curve for metals ceramics and polymers.
After plotting the stress and its corresponding strain on the graph we get a curve and this curve is called stress strain curve or stress strain diagram.
Stress strain curves for two brittle materials.
Its behavior begins in the linear elastic deformation region.
In this the stress is plotted on the y axis and its corresponding strain on the x axis.
The stress strain curve can provide information about a material s strength toughness stiffness ductility and more.
The blue curve is a plastic polymer and is similar to curves for many metals.
Primarily differences are due to their different chemical bonding properties homework 1.
The brittle polymer red curve elastically deforms and fractures before deforming plastically.
Polymers exhibit a wide range of stress strain behaviors as shown in the figure below.
The stress strain curve is the simplest way to describe the mechanical properties of the material.
For brittle ceramics a three point bending apparatus shown in the figure below is used determine the stress strain behavior and the measurement results are used to calculate an equivalent modulus of elasticity.