Stress analysis and design improvement for commercial vehicle frames with bolted joints

摘要

Structural failures such as crack initiation often arise near the bolted parts of the side member and trunnion bracket of some commercial vehicles. To prevent these problems, a designer should be able to analyze with confidence the bolted joints of the structures, and this will requrie a reliable and practically simple bolted joint modelling technique. Once the modelling technique is established with experimental verification, the key design varibles must be identified in order to alleviate the level of the stress concentration near the problem region.