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Mohr’s circle
Mohr's Circle Explained A Mohr's circle , also known as a Mohr's stress circle or Mohr's strain circle , is a graphical tool used to represent the...
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Mohr's Circle Explained A Mohr's circle , also known as a Mohr's stress circle or Mohr's strain circle , is a graphical tool used to represent the...
A Mohr's circle, also known as a Mohr's stress circle or Mohr's strain circle, is a graphical tool used to represent the relationship between the normal stress and shear stress of a material.
It is a circle with its center at the material's young's modulus and its radius representing the ultimate tensile strength of the material.
Key points about the Mohr's circle:
Normal stress and shear stress are the two main stresses that act on a material.
Normal stress is the force acting perpendicular to the surface area, and it causes a deformation in the material.
Shear stress is the force acting parallel to the surface area, and it causes a shearing deformation in the material.
A material will experience tension when subjected to normal stress and will experience shear when subjected to shear stress.
The Mohr's circle helps engineers and material scientists understand the strength and behavior of materials under different types of loading.
Examples:
Mild steel has a Mohr's circle with a diameter of 200 MPa, indicating that it can withstand a maximum normal stress of 200 MPa before failing.
Aluminum has a Mohr's circle with a diameter of 100 MPa, indicating that it can withstand a maximum normal stress of 100 MPa before failing.
Quartz has a Mohr's circle with a diameter of 0.5 GPa, indicating that it can withstand a maximum normal stress of 0.5 GPa before failing