Author : Brad Lee Kinsey
Publisher :
Page : pages
File Size : 26,86 MB
Release : 2001
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ISBN :
In this dissertation, research is presented that both improves and assesses the formability of TWBs. First, an advanced sheet metal forming process, which utilizes segmented dies with local adaptive controllers, is outlined (Cao and Kinsey 1999). This innovation was shown through both numerical simulations and physical experiments to significantly improve the formability of a test panel by reducing the strain in the weaker material. Then, an analytical model is presented to assess the formability of TWBs, including the expected weld line movement and forming height for a given strain state. The validity of the model was verified through numerical simulations. This analytical tool would be instrumental in assisting design engineers analyze TWB applications prior to costly and time consuming numerical simulations and physical implementation. The research work presented here will allow automobile companies to utilize TWBs to their fullest potential thus creating numerous environmental and economical benefits.