Weiss L. Initial design of crashworthy composite structures: Diss. … Dr.-Ing. / Deutsches Zentrum fur Luft- und Raumfahrt, Institut für Faserverbundleichtbau und Adaptronik, Braunschweig. - Köln: DLR, 2017. - XV,217 p.: ill., tab. - (Forschungsbericht; 2017-09). - Res. also Germ. - Bibliogr.: p.201-213. - ISSN 1434-8454 Шифр: (Pr 1120/2017-09) 02  Место хранения:   01 | ГПНТБ СО РАН | Новосибирск

Оглавление / Contents

List of Abbreviations .......................................... ix List of Symbols ................................................ xi 1 Introduction ................................................. 1 2 Crashworthiness in Composite Design .......................... 9 2.1 Constitutive Material Properties ........................ 9 2.2 Energy Absorption Devices .............................. 12 2.3 Crashworthy Design ..................................... 18 2.4 Crashworthiness in Transportation Vehicle Development .. 21 2.5 Structural Optimisation for Crashworthiness ............ 25 3 Topological Optimisation of Composite Structures ............ 31 3.1 Structural Model Derivation ............................ 33 3.2 Preliminary Notes on the Optimisation Task ............. 51 3.3 Principles of Element Positioning ...................... 57 3.4 Principles of Characteristic Response Derivation ....... 65 3.5 Simultaneous Consideration of Static and Crash Loads ... 72 3.6 Benefits of Simultaneous Consideration of Static and Crash Loads ............................................ 81 3.7 Method Assessment ...................................... 87 4 Preliminary Composite Design by Numerical Methods ........... 91 4.1 Analysis Verification .................................. 95 4.2 Deformation Work of Straight Composite Z-Frames ....... 100 4.3 Deformation Work of Curved Composite Z-Frames ......... 104 4.4 Structural Optimisation for Preliminary Composite Design ................................................ 107 4.5 Method Assessment ..................................... 114 5 Preliminary Composite Design by Experimental Methods ....... 117 5.1 Deformation Element ................................... 119 5.2 Friction as an Energy Absorption Principle ............ 120 5.3 Piezoelectric Deformation of Cylindrical Composite Structures ............................................ 129 5.4 Prospects for Preliminary Design ...................... 140 5.5 Method Assessment ..................................... 144 6 Applicability to Aircraft CFRP Fuselage Design ............. 147 6.1 Hybrid Modelling Approach for Stiffened Panels ........ 147 6.2 Implications on the Current Fuselage Design Process ... 155 6.3 Method Assessment ..................................... 159 7 Conclusion and Outlook ..................................... 161 7.1 Conclusion ............................................ 161 7.2 Outlook ............................................... 164 Appendices .................................................... 165 Al Appendix of Chapter 1 .................................. 165 A2 Appendix of Chapter 2 .................................. 165 A3 Appendix of Chapter 3 .................................. 170 A4 Appendix of Chapter 4 .................................. 179 A5 Appendix of Chapter 5 .................................. 187 A6 Appendix of Chapter 6 .................................. 198 Bibliography .................................................. 201 Own Publications .............................................. 215 Curriculum Vitae .............................................. 217