Load - Extension Graphs
#LoadExtensionGraphs
#Physics
#OutofTextbookstuffs
The Uses
To use a Spring, You need to know these things : yield point, elastic limit, and proportional limit. But where can we find, well for that science use Load - Extension Graph.
The load-extension graph represents the relationship between the load (force) applied to a material and the extension (deformation) it experiences. Key points like yield point, breaking point, elastic limit, and crushing point can be identified on the graph, providing insights into the material's behavior.
The slope of the load-extension graph is crucial for determining Young's modulus, particularly for materials following Hooke's law. Young's modulus is a measure of stiffness or elasticity of a material.
Content
Elastic Limit - is the maximum pressure that may be given to a material without it deforming.
Proportionality Limit - of a material is defined as the point at which stress and strain are directly proportional to one another.
Yield Point - to designate the point of permanent deformation defined by bond rupture for engineering purposes.
How to Find the Content
The graph is non-linear, indicating that stress is no longer proportional to strain. The metal, on the other hand, returns to its former shape at this point.
The highest potential applied stress at which stress and strain are directly proportional is the limit of proportionality. The stress-strain graph is a straight line inside the proportional limit, and Hooke’s law applies.
Plastic deformation occurs when a material is stressed beyond its elastic limit. The Yield point of a material is the point at which it transitions from elastic to plastic deformation.
An Example
A Video
Extension-Load graph of Spring with Lab set-up and Analysis of the graph (physicsteacher.in)
Check this