Calculate Tensile Stress Area of Bolt
Calculating the tensile stress area of a bolt is crucial in determining the load-carrying capacity of a bolted joint. It helps ensure the safety and reliability of structures and equipment.
- Enter the bolt diameter in millimeters.
- Enter the bolt length in millimeters.
- Select the bolt material from the dropdown menu.
- Click the ‘Calculate’ button.
The tensile stress area (A) of a bolt is calculated using the formula:
A = π * (d^2 – 3 * (p/2)^2)
where d is the bolt diameter and p is the pitch of the bolt threads. The pitch is calculated as:
p = π * d / (12 * cos(θ))
where θ is the thread angle, which is typically 2° for ISO metric bolts.
| Bolt Diameter (mm) | Pitch (mm) | Tensile Stress Area (mm²) |
|---|---|---|
| 8 | 1.25 | 50.27 |
| 10 | 1.5 | 78.54 |
| 12 | 1.75 | 103.23 |
- Always use bolts of the correct size and material for the application.
- Ensure bolts are tightened correctly to achieve the desired preload.
- Regularly inspect and maintain bolted joints to prevent loosening or fatigue.
What is the pitch of a bolt?
The pitch of a bolt is the distance between the corresponding points on two consecutive threads of a bolt.
How do I interpret the results of the calculator?
The calculator provides the tensile stress area of the bolt. This value can be used to calculate the maximum allowable tensile stress for the bolt, which is typically provided in the material’s mechanical properties.
Engineering ToolBox provides a wealth of information on bolts and their applications.