Influence Of Forming And Painting Process On Crashworthiness Of Auto Body Components

With the development of computer-aided engineering, use the transient state dynamics analysis method to carries on the analysis to the transient state mechanics process which involves to the automobile collision process, as a means of supporting the design, can greatly improve efficiency of the work.Computer simulation testing methods has incomparable superiority, but can not be fully divorced from or replace the test. This is because the automobile entire vehicle or human models that established with computer simulation methods, have many inherent limitations, it is impossible to reflect the true security collisions process, so the validity of the results of computer simulation needs the test give final certification. At the same time, because of the limitation of computer capability and simulation methods, especially in the research of anti-collision aspect of car body structural, the computer simulation cycle is long and that the model error is also particularly prominent. Thus, in the field of structural engineering particularly dynamics matter, the calculation of model error is the key problem in the development tendency of simulation replace the test.Above elaborated explains two points: First, although there are many advantages of the computer simulation, but can not be completely divorced from or replace tests, finally is must depend on experiments performs to confirm. Second, computer simulation is a trend to replace test, but the key question is to resolve the model error.In view of former, the author of this study focusing on the principle of emphasize the test, researched the techniques factors of the components of the vehicle body works on the anti-collision capability. In the latter, the author presented the point of import the forming and painting process together into collision analysis. Thus the simulation would be more precise, and has the guiding sense to the experiments.The collision simulation of car body parts is the foundation of the safety collision simulation research of the entire car. Material parameters detected form the stretch test are important parameters of the collision simulation models However stretch tests are usually use the sample taken from blank, but not the...