TY - JOUR
T1 - Fundamental studies on crashworthiness design with uncertainties in the system
AU - Qi, Chang
AU - Ma, Zheng Dong
AU - Kikuchi, Noboru
AU - Pierre, Christophe
AU - Wang, Hui
AU - Raju, Basavaraju
PY - 2005
Y1 - 2005
N2 - Previous research [1] using an advanced multi-domain topology optimization technique has shown a great promise for the crashworthiness design using the new technique. In this paper, we try to answer some fundamental questions regarding the crashworthiness design, which include: 1) what are the fundamental crash mechanisms of a general crash process; 2) how the uncertainties in the system will affect the crash behavior of a structure; and 3) what is the proper approach for the crashworthiness design optimization that will have needed effectiveness and efficiency. In this paper, three different kinds of uncertainties, uncertainties in the structural parameters, the modeling processes, and the loading and boundary conditions, will be considered to assess the effects of the uncertainties in the crash process. The possible crash mechanisms are then studied to provide an understanding for the design problem. A preliminary discussion on a systematic step by step design approach is provided, which employs linear static finite element analyses to improve the efficiency of the design process. This approach will be extended in the next step for more general crashworthiness design problems and with the use of the topology optimization.
AB - Previous research [1] using an advanced multi-domain topology optimization technique has shown a great promise for the crashworthiness design using the new technique. In this paper, we try to answer some fundamental questions regarding the crashworthiness design, which include: 1) what are the fundamental crash mechanisms of a general crash process; 2) how the uncertainties in the system will affect the crash behavior of a structure; and 3) what is the proper approach for the crashworthiness design optimization that will have needed effectiveness and efficiency. In this paper, three different kinds of uncertainties, uncertainties in the structural parameters, the modeling processes, and the loading and boundary conditions, will be considered to assess the effects of the uncertainties in the crash process. The possible crash mechanisms are then studied to provide an understanding for the design problem. A preliminary discussion on a systematic step by step design approach is provided, which employs linear static finite element analyses to improve the efficiency of the design process. This approach will be extended in the next step for more general crashworthiness design problems and with the use of the topology optimization.
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U2 - 10.4271/2005-01-0613
DO - 10.4271/2005-01-0613
M3 - Conference article
AN - SCOPUS:85072475616
SN - 0148-7191
JO - SAE Technical Papers
JF - SAE Technical Papers
T2 - 2005 SAE World Congress
Y2 - 11 April 2005 through 14 April 2005
ER -