Publications

Publications

Performance Validation of Two of Side Impact Dummies

M. H. Ray, K. Hiranmayee, S. W. Kirkpatrick

This paper validates two finite element models (FEM) of the Side Impact Dummy (SID) by comparing their performance against physical crash tests. The study highlights how FEM is used to predict dummy responses and evaluate injury risk in side impacts, ultimately assessing the fidelity of the models for crashworthiness research.

Energy Absorption in Aluminum Extrusions for a Spaceframe Chassis

R. W. Logan, S. A. Perfect, R. D. Parkinson

The paper describes how finite element analysis (FEA) was used to design and verify the crashworthiness of an aluminum spaceframe chassis for a prototype electric vehicle. The work, a collaboration between LLNL and Kaiser Aluminum, focused on optimizing the structure's energy absorption capabilities during frontal and roof crush events. The use of DYNA3D, an FEA code, was critical for evaluating and refining different design iterations and ensuring compliance with safety standards.

Ballistic Simulation of Impact on Composite Laminates

M.A.G. Silva, C. Cismasiu, C.G. Chiorean

This paper reports on the numerical simulation of ballistic impact on composite laminates using a hydrocode to model non-linear transient dynamics. The authors use the AUTODYN-3D code, which is based on explicit finite difference, finite volume, and finite element techniques, to analyze the impact and predict ballistic performance.

The Interpretation of Separation Mechanism of Ridge-Cut Explosive Bolt Using Simulation

Y. J. Lee, D. J. Kim

This paper describes an interpretation processor created to simulate the hydrodynamics of explosive bolt separation. The processor uses the AUTODYN software to model material failure and separation under transient dynamic loading, demonstrating that the principal stress is the fundamental cause of failure. The research proves that this simulation approach is an accurate and effective alternative to expensive and time-consuming physical experiments.

Constituitive Model for Damaged Borosilicate Glass

This paper details a method to determine the constitutive properties of damaged borosilicate glass by compressing it within a steel sleeve and measuring its response. It employs analytical and numerical models to interpret the data, providing a set of constants for elastic and plastic behavior.