In this work, a new type of energy-absorbing thin-walled tubes with concave angles is proposed by unique structural design method to improve the crashworthiness performance traditional hexagonal tube (TH). These structures (CTSs) are named CTS1, CTS2, and CTS3 respectively, while CTS1 developed common method. The crushing behaviors investigated quasi-static compression experiments numerical sim...

A historical review of frontal and side impact regulations in the U.S.A. and Europe has been conducted. The biomechanical basis of injury criteria utilized in these regulations have been examined. It is shown that the biomechanical database utilized in the current impact regulations are based on research conducted before the mid-1980’s. Research conducted since then has not had any impact on re...

This paper presents a methodology for uncertainty quantification based multi-objective optimization of automotive body components under impact scenario. Conflicting design requirements arise as one tries, for example, to minimize structural mass while maximizing energy absorption of an automotive rail section under structural and occupant safety related performance measure constraints. Uncertai...

The subject of this investigation is the development of an accurate simulation of a truck impacting a strong-post w-beam guardrail. Detailed methods for system simulation are proposed and three major issues which involve the use of springs to simulate component crashworthiness behavior is investigated. Rail to blockout bolt connection, soil-post dynamic interaction, and effect of ends of guardr...

As a clean energy technology, the development of electric vehicles (EVs) is challenged by lightweight design, battery safety, and range. In this study, our simulations indicate that using a flexible structure of battery module has the potential to overcome the limitations in battery-powered EVs, contributing to a new design. Specifically, we focus on optimizing the structure of vehicle battery ...

In this work a full vehicle model of a rural transport vehicle (RTV) is developed in MADYMO. The steering, tier and suspension are modeled using standard modules available in the package. A speed controller was also incorporated to maintain a constant speed of the vehicle in the simulations. Validation of the model was done against experimental accelerations measured over a bump. The validated ...