Shear Area in Washer: Calculating Load and Area

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SUMMARY

The discussion focuses on calculating the shear area and load on a washer used with bolts. It clarifies that the shear load on the washer is determined by the formula π*d*t, where 'd' represents the outer diameter of the washer and 't' is its thickness. The conversation emphasizes the importance of understanding the compression and bending forces acting on the washer, particularly when the bolt hole size exceeds that of the washer. This foundational knowledge is essential for anyone involved in mechanical design or engineering.

PREREQUISITES
  • Understanding of basic mechanical engineering principles
  • Familiarity with bolt and washer specifications
  • Knowledge of shear force and load calculations
  • Basic geometry related to circles and areas
NEXT STEPS
  • Research "Shear Force and Moment Diagrams" for deeper insights into load distribution
  • Study "Mechanical Properties of Materials" to understand material behavior under load
  • Learn about "Bolt and Washer Design Standards" for industry specifications
  • Explore "Finite Element Analysis (FEA)" for advanced stress analysis in mechanical components
USEFUL FOR

This discussion is beneficial for first-year engineering students, mechanical designers, and anyone involved in the design and analysis of bolted joints and fastening systems.

sriram123
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Hi all,
Just curious about how to size the thickness of washer for a particular class of bolt.(I'm not actually designing one but want to know how standard washers are sized.)I'm having a feeling that the washer will be under compression (Bearing surface of bolt head or nut).Bending will be there if the hole size for bolt is larger than hole size of washer.

My question is what will be the value of shear load on bolt and what will be its shear area (Will it be pi*d*t ? d being O.D. of washer and t being thickness of washer).

I'm a first yr student so i cannot clearly visualise the shear load in washer.

Thanks in advance
 
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A correction.In my second para I mis typed as "shear load on bolt" actually i meant "shear load on washer" .

Sorry for the mistake.

Thanks in advance
 

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