Abstract
This study aims at development of the simple design method of stress analysis of bolted joints applicable to the general case. The multi-bolted joint is modeled using spring-beam elements and analyzed with finite element method. The relationship between the applied load and the stress in the bolt is analyzed. The axial stress and the bending stress on the bolt are measured by strain gages to verify the results from analysis of the multi-bolted joint of various geometry. The obtained results are as follows: (1) A simple and useful method to analyze the stress in the bolt in the multi-bolted is proposed. (2) The analytical results show good agreement with the experimental results. (3) When the external force acts on the bolted joint, the stress in a bolt near the application point of the force is increased. (4) Even if the distance between the bolts is large, the stress in a bolt near the application point of the force is not so relieved.
