caa a22 4500 463243595 CHVBK 20180405153319.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s00158-007-0100-z doi (NATIONALLICENCE)springer-10.1007/s00158-007-0100-z Missoum Samy Department of Aerospace and Mechanical Engineering, University of Arizona, 1130 N. Mountain, P.O. Box 210119, 85721, Tucson, Arizona, USA aut Controlling structural failure modes during an impact in the presence of uncertainties [Elektronische Daten] [Samy Missoum] A methodology to enforce a given structural dynamic behavior during an impact while accounting for uncertainty is presented. The approach is based on locating structural fuses that weaken the structure locally and help enforce a deformation mode. The problem of enforcing the crushing of a tube impacting a rigid wall is chosen. In order to find the positions of the fuses, the method identifies distinct structural dynamic behaviors using designs of experiments and clustering techniques. The changes in behavior are studied with respect to variations of the fuse positions and random parameters, such as the thickness. Based on the probabilistic distributions, a measure of the likelihood of occurrence of global buckling is defined. The positions of the fuses are defined using an optimization problem in terms of the likelihood of global buckling and the amount of absorbed energy in the tube. A first formulation of the problem considers variability in the tube's thickness only. A second formulation also accounts for uncertainties in the positions of the fuses. Springer-Verlag Berlin Heidelberg, 2007 Structural impact nationallicence Structural fuses nationallicence Uncertainties nationallicence Global buckling nationallicence Clustering nationallicence Structural and Multidisciplinary Optimization Springer-Verlag 34/6(2007-12-01), 463-472 1615-147X 34:6<463 2007 34 158 https://doi.org/10.1007/s00158-007-0100-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00158-007-0100-z text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Missoum Samy Department of Aerospace and Mechanical Engineering, University of Arizona, 1130 N. Mountain, P.O. Box 210119, 85721, Tucson, Arizona, USA aut NATIONALLICENCE 773 0- Structural and Multidisciplinary Optimization Springer-Verlag 34/6(2007-12-01), 463-472 1615-147X 34:6<463 2007 34 158 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer