Permissible Stress for Power Driven Field Rivet
The maximum permissible stress for power driven field rivet in bearing on rivet is 270 N/mm2.

Explanation:

Definition:
Power driven field rivets are commonly used in construction and engineering applications to join materials together. The permissible stress for power driven field rivet in bearing on rivet refers to the maximum stress that the rivet can withstand before failure.

Factors affecting permissible stress:
1. Material properties: The material used in the rivet plays a crucial role in determining the permissible stress. Different materials have different strength levels and can withstand varying amounts of stress.
2. Rivet size and design: The size and design of the rivet also impact the permissible stress. Larger rivets with a more robust design can typically withstand higher stress levels.
3. Application requirements: The permissible stress for a power driven field rivet must be determined based on the specific application requirements, including the load and environmental conditions.

Importance of permissible stress:
Determining the maximum permissible stress is essential to ensure the safety and reliability of the joint. Exceeding the permissible stress can lead to premature failure of the rivet, compromising the structural integrity of the assembly.

Conclusion:
In conclusion, the maximum permissible stress for a power driven field rivet in bearing on rivet is 270 N/mm2. This value is crucial in ensuring the proper functioning and longevity of the joint in various engineering and construction applications.