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Edge Fracture Prediction Of Dual Phase Steels With Consideration Of Microstructures, Ming Wen
Edge Fracture Prediction Of Dual Phase Steels With Consideration Of Microstructures, Ming Wen
Wayne State University Dissertations
In recent years, Advanced High Strength Steels (AHSS) have been used for the lightweight structural design and manufacturing in automotive industry. This class of sheet metals are prone to edge fracture during stamping production, and the fracture often occurs at much lower strain than that predicted based on the forming limit curves. The uncertainty in predicting edge fracture represents a great challenge in the application of AHSS. This dissertation is focused on the better understanding of edge fracture phenomenon through experimental observation and computer modeling with the consideration of microstructure effect.
In this dissertation, Hole Expansion (HE) test was used …