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Crash simulation for biomechanical research

  • Since a number of human models have been developed it appears sensible to use these models also in the accident analysis. Especially the understanding of injury mechanisms and probably even injury risk curves can be significantly improved when interesting accidents are reconstructed using human body models. However, an important limitation for utilising human models for accident reconstruction is the effort needed to develop detailed FE models of the accident partners or to prepare the human model reconstruction by running physical accident reconstructions. The proposed approach for using human models for accident reconstruction is to use simplified and parametric car models. These models can be adapted to the crash opponents in a fast and cost effective way. Although, accuracy is less compared to detailed FE models, the relevant change in velocity can be simulated well, indicating that the computation of a detailed crash pulse is not needed. Two frontal impact test accidents that were reconstructed experimentally and using the parametric car models are indicating sufficient correlation of the adapted parametric car models with the full scale crash reconstructions. However, further developments of the parametric models to be capable for the use in lateral impacts and rear impacts are needed. For the PC Crash simulation runs the output sampling rate is too large to allow sufficient analysis. In addition the performance appears to be too general.

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Author:Heiko Johannsen, Mathias Stein, Dietmar Otte
Document Type:Conference Proceeding
Date of Publication (online):2015/08/07
Contributing corporation:Medizinische Hochschule Hannover. Verkehrsunfallforschung
Release Date:2015/08/07
Tag:Anfahrversuch; Biomechanik; Deutschland; Frontalzusammenstoß; Konferenz; Methode der finiten Elemente; Numerisches Modell; Pkw; Simulation; Unfallrekonstruktion
Accident reconstruction; Biomechanics; Car; Conference; Digital model; Finite element method; Germany; Head on collision; Impact test (veh); Simulation
Außerdem beteiligt: Technische Universität Berlin, Fachgebiet Kraftfahrzeuge
Source:6th International Conference on ESAR 2014
Institutes:Sonstige / Sonstige
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
collections:BASt-Beiträge / ITRD Sachgebiete / 80 Unfallforschung
BASt-Beiträge / Tagungen / International Conference on ESAR / 6th International Conference on ESAR

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