Suchergebnisse

The aim of the cross-roll straightening process is to straighten bars having a circular section. To the knowledge of the authors, most of the work published about this process is based on analytical considerations. In the present ...

Incremental CNC sheet forming (ISF) and incremental sheet forming with incremental die (ISFID) are relatively new sheet form process for small batch production and prototyping. In these processes, a blank is shaped by the CNC ...

There is an increasing demand for car body parts made of high strength steels nowadays. The prediction of forces needed for stamping these parts is very difficult due to elastic deformations of the tools and presses. These ...

The rise in the light weight automotive design necessitates the usage of the high strength steels, which increase the springback tendency in the sheet metal forming. Contrary to the conventional steels, the high strength steels ...

The work presented in this paper was developed with the objective of increasing road safety for motorcycle drivers. Guardrails are traffic barriers placed along the roadsides to protect vehicles from hazards behind the barriers. These ...

Using Finite Element Method (FEM) it is possible to show and predict the behaviour of the vehicle’s structure during a crash test. To ensure good simulation results compared to the reality it is not only necessary to correctly build ...

Standard material models like linear elastic or elastic plastic formulations are not able to precisely reproduce component behavior when failure occurs. Micromechanical damage models enable a more accurate prediction of material ...

Determination of material data for automotive crash simulation is a costly and time consuming process. Especially the measurement of material behaviour like strain rate sensitivity and stress state dependent fracture is a difficult ...

Alcan relies strongly on crashworthiness simulations in its development of light weight automotive crash management systems at Gottmadingen, Germany. The effectiveness of CAE-based crash performance assessments considerably depends on ...

Bolt connections are one of the main joining techniques in commercial vehicles. To capture the main effects of this connection type a new modelling technique is discussed and compared with conventional techniques. To describe the bolt ...