cross section crash boxes

More documents

Recommendations

Info

Wen, C. E., Yamada, Y., Shimojima, K., Chino, Y., Hosokawa, H. and Mabuchi, M., 2004, Compressibility of porous magnesium foam: dependency on porosity and pore size. Materials Letters. 58(3-4): p. 357-360. Wierzbicki, T. and Abramowicz, W., 1983, On the Crushing Mechanics of Thin-Walled Structures. Journal of Applied Mechanics. 50: p. 727-734. Wierzbicki, T., Bhat, S. U., Abramowicz, W. and Brodkin, D., 1992, Alexander revisited--A two folding elements model of progressive crushing of tubes. International Journal of Solids and Structures. 29(24): p. 3269-3288. Williams, B. W., Oliveira, D. A., Simha, C. H. M., Worswick, M. J. and Mayer, R., 2007, Crashworthiness of straight section hydroformed aluminium tubes. International Journal of Impact Engineering. 34(8): p. 1451-1464. Yamazaki, K. and Han, J., 2000, Maximization of the crushing energy absorption of cylindrical shells. Advances in Engineering Software. 31(6): p. 425-434. Zarei, H. R. and Kröger, M., 2006, Multiobjective crashworthiness optimization of circular aluminum tubes. Thin-Walled Structures. 44(3): p. 301-308. Zarei, H. R. and Kröger, M., 2008a, Bending behavior of empty and foam-filled beams: Structural optimization. International Journal of Impact Engineering. 35(6): p. 521-529. Zarei, H. R. and Kröger, M., 2008b, Optimization of the foam-filled aluminum tubes for crush box application. Thin-Walled Structures. 46(2): p. 214-221. Zarei, Hamidreza and Kröger, Matthias, 2008c, Optimum honeycomb filled crash absorber design. Materials & Design. 29(1): p. 193-204. Zhang, X. and Cheng, G., 2007, A comparative study of energy absorption characteristics of foam-filled and multi-cell square columns. International Journal of Impact Engineering. 34(11): p. 1739-1752. Zhang, X., Cheng, G., Wang, B. and Zhang, H., 2008, Optimum design for energy absorption of bitubal hexagonal columns with honeycomb core. International Journal of Crashworthiness. 13(1): p. 99-107. Zhang, X. W., Su, H. and Yu, T. X., 2009, Energy absorption of an axially crushed square tube with a buckling initiator. International Journal of Impact Engineering. 36(3): p. 402-417. 208
Zhao, H., Elnasri, I. and Girard, Y., 2007, Perforation of aluminium foam core sandwich panels under impact loading--An experimental study. International Journal of Impact Engineering. 34(7): p. 1246-1257. Zhao, H., Elnasri, I. and Li, H. J., 2006, The mechanism of strength enhancement under impact loading of cellular materials. Advanced Engineering Materials. 8(9): p. 877-883. 209
Page 1 and 2:
OPTIMIZATION OF THE AXIAL CRUSHING
Page 3 and 4:
ACKNOWLEDGEMENTS My PhD quest has b
Page 5 and 6:
ÖZET KAPALI HÜCRELİ ALUMİNYUM K
Page 7 and 8:
CHAPTER 4 EXPERIMENTAL DETAILS ....
Page 9 and 10:
CHAPTER 8 ALUMINUM CRASH BOX OPTIMI
Page 12 and 13:
Figure 3.7. Simulations of the defo
Page 14 and 15:
Figure 4.9. Dimensions of tensile t
Page 16 and 17:
Figure 6.21. Sequential deformation
Page 18 and 19:
Page 20 and 21:
LIST OF TABLES Table Page Table 4.1
Page 22 and 23:
Figure 1. 1. The body in white stru
Page 24 and 25:
Figure 1. 4. Commercial crash boxes
Page 26 and 27:
CHAPTER 2 AL CLOSED CELL FOAMS: PRO
Page 28 and 29:
The processing methods and mechanic
Page 30 and 31:
Figure 2. 5 The preferred particle
Page 32 and 33:
Figure 2. 8. Typical cellular struc
Page 34 and 35:
Figure 2. 10. Manufacturing cost of
Page 36:
Figure 2. 12. Laser assisted foamed
Page 41 and 42:
Figure 2.16. Shear strength, normal
Page 43 and 44:
Figure 2. 19. Yield strength vs. re
Page 45 and 46:
Figure 2. 21. Unit cell geometry an
Page 47 and 48:
Figure 2. 24. Load-displacement cur
Page 49 and 50:
Figure 2. 26. The photographs of a
Page 51 and 52:
CHAPTER 3 CRUSHING BEHAVIOR OF TUBU
Page 53 and 54:
Figure 3.2. Diamond deformation mod
Page 57 and 58:
deformation mode transition from ax
Page 59 and 60:
Figure 3.8. Energy absorption of qu
Page 61:
(a) (c) Figure 3.10. Deformation mo
Page 65 and 66:
(a) (b) Figure 3.13. a) Schematic o
Page 67 and 68:
(a) (b) (c) Figure 3.15. a) Load-di
Page 72 and 73:
Figure 3.18. The crush terminology.
Page 75 and 76:
The quasi-static compression behavi
Page 77 and 78:
Figure 3.22. The variation of speci
Page 79 and 80:
Figure 3.24. Deformation modes of e
Page 81 and 82:
Figure 3.27. SEA values of empty an
Page 83 and 84:
Figure 3.29. (cont.) 3.5. Motivatio
Page 85 and 86:
CHAPTER 4 EXPERIMENTAL DETAILS 4.1.
Page 87 and 88:
(a) (b) Figure 4.3.Pictures of a) f
Page 89 and 90:
oxes are shown in Figure 4.6. The l
Page 91 and 92:
Figure 4.7. The method of trigger m
Page 93 and 94:
4.4. Compression Tests of Crash Box
Page 95 and 96:
4.5.2. Uniaxial Compression Testing
Page 97 and 98:
Table 4.1 (Cont.) G1 T3 F2 G1T3F2 3
Page 99 and 100:
Table 4.2 (Cont.) G1 T2.5 WP F2 G1T
Page 101:
CHAPTER 5 SIMULATION AND OPTIMIZATI
Page 105:
considered in axial and transverse
Page 109 and 110:
were constrained. Since the width o
Page 116 and 117:
5.4. The Crashworthiness Optimizati
Page 118 and 119:
great effect on the crushing behavi
Page 120:
CHAPTER 6 EXPERIMENTAL RESULTS 6.1.
Page 124 and 125:
Figure 6.3.Tensile stress-strain cu
Page 126 and 127:
(a) (b) Figure 6.5. Sequential defo
Page 128 and 129:
plate (Figure 6(b)). The trigger is
Page 130 and 131:
(a) (b) Figure 6.9. Deformation seq
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Figure 6.18. (cont.) (c) (a) (b) Fi
Page 140 and 141:
Figure 6.20.(cont.). (b) (c) 6.5.4.
Page 142 and 143:
Figure 6.21.(cont.) (b) (c) 122
Page 144 and 145:
Figure 6.22.(cont.) (c) Figure 6.23
Page 146 and 147:
Figure 6.24.(Cont.) (b) (c) (a) Fig
Page 148 and 149:
Figure 6.26.(cont.) (b) (c) 6.6. Dy
Page 150 and 151:
Figure 6.27. (cont.) (b) (c) 130
Page 152 and 153:
CHAPTER 7 MODELING RESULTS OF FOAM,
Page 154 and 155:
experimental tensile stress-strain
Page 156 and 157:
significant effect of weld seem ope
Page 158 and 159:
Figure 7.7. Deformation photo of fi
Page 160 and 161:
Figure 7.11. Deformation photos of
Page 162 and 163:
(a) (b) (c) Figure 7.14. Load-displ
Page 164 and 165:
7.4. Simulation of Empty and Partia
Page 166 and 167:
Figure 7.16. (cont.) (c) (a) Figure
Page 168 and 169:
(a) (b) Figure 7.18. Sequential def
Page 170 and 171:
Figure 7.19. (cont.) (b) (c) 150
Page 172 and 173:
Figure 7.20. (cont.) (c) (a) Figure
Page 174 and 175:
Page 176 and 177:
Page 178: (a) (b) Figure 7.26. Experimental a
Page 182 and 183: The constructed response surface of
Page 184: Table 8.1. R 2 , Radj 2 and RMSE va
Page 187 and 188: (a) (b) Figure 8.7. Response surfac
Page 189 and 190: an empty tube wall thickness higher
Page 192 and 193: where, K is a dimensionless constan
Page 194 and 195: The dynamic simulation and analytic
Page 196: Figure 9.4. (cont.) (c) (d) Figure
Page 199 and 200: Figure 9.6. (cont.) (c) (d) (a) Fig
Page 203 and 204: Equation 9.7 can also be rewritten
Page 206: (a) (b) Figure 9.10. Energy-absorbi
Page 209 and 210: Figure 9.11. (cont.) (d) The variat
Page 211 and 212: foam filling were evaluated. The re
Page 213 and 214: 13. The interaction between foam fi
Page 215 and 216: Arora, J. S.,2004,Introduction to O
Page 217 and 218: Dannemann, K. A. and Lankford, J.,
Page 219 and 220: Hall, I. W., Guden, M. and Yu, C. J
Page 221 and 222: Kim, D-K. and Lee, S., 1999, Impact
Page 223 and 224: Mamalis, A. G., Manolakos, D. E., I
Page 225 and 226: Pugsley, A. G. and Macaulay, M., 19
Page 227: T. Miyoshi, M. Itoh S. Akiyama A. K
show all

cross section crash boxes

Create successful ePaper yourself

Delete template?

Save as template?