A New Approach for the Evaluation of Component and Joint Loads Based on Load Path Analysis

The load specific design of structural components and their associated mechanical joints is challenging due to the large number of interdependencies between different joining parameters. The definition of a transferable knowledge base is also difficult and in most cases the design phase has to be accompanied by numerous experimental tests. Therefore, in most cases, the components and/or the clinched joints are manufactured with a significant safety factor, generally leading to oversizing and corresponding reduced economic and environmental efficiency. This paper describes the basics of a new approach for the evaluation of component and joint loads based on load path analysis by using a simple specimen geometry. The new method is independent of the orientation of the component and the force input in relation to the coordinate system used for evaluation. It is presented using simple plate with a square hole and compared to the classical approach. The primary goal of this methodical approach is an even load distribution over the joining point and component, thereby developing a basis for future design approaches aiming at the reduction of oversizing in joint structures.