Abstract
This paper investigates sources of performance variability in high velocity testing of automotive crash structures. Sources of variability, or so called noise factors, present in a testing environment, arise from uncertainty in structural properties, joints, boundary conditions and measurement system. A box structure, which is representative of a crash component, is designed and fabricated from a high strength Dual Phase sheet steel. Crush tests are conducted at low and high speed. Such tests intend to validate a component model and material strain rate sensitivity data determined from high speed tensile testing. To support experimental investigations, stochastic modeling is used to investigate the effect of noise factors on crash structure performance variability, and to identify suitable performance measures to validate a component model and material strain rate sensitivity data. The results of the project will enable the measurement of more reliable strain rate sensitivity data for improved crashworthiness predictions of automotive structures.
| Original language | English |
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| Publication status | Published - 4 Jun 2006 |
| Event | Proceedings of 9th Int. LS-DYNA Users’ Conference - Detroit, Michigan, United States Duration: 4 Jun 2006 → 6 Jun 2006 |
Conference
| Conference | Proceedings of 9th Int. LS-DYNA Users’ Conference |
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| Country/Territory | United States |
| City | Detroit, Michigan |
| Period | 4/06/06 → 6/06/06 |
Keywords
- automotive research
- crash testing
- materials testing
- engineering