The resultant springback and residual stress can

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Unformatted text preview: ace 1 5) There is penetration between part 1 and 2 in both corners after they are joined together (see figure 3). This can have a major impact on the springback deflection [Dahlström and Lindkvist, 2004]. All mating surfaces are therefore modeled with contact elements in order to prevent the parts from penetrating each other. This results in Rmean=0.79 and R6 =0.45. The values for each inspection point for mean and variance is presented in figure 4. Figure 4: Comparison mean deviation (upper) and 6 (lower) 5. DISCUSSION In this application, we have incorporated modeling aspects such as full springback between the assembly steps, welding of the contact surfaces separately in sequence, 318 S. Dahlström, L. Lindkvist and R. Söderberg removal of inspection points that were parallel to the surface and using contact elements in order to receive a satisfactory correlation between the inspection data. The weld sequence and contact modeling was required since this assembly has curved contact surfaces which the springback is strongly influenced by. The incorporation with contact elements on several s...
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This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.

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