Table of contents
XIII
7.4.1 Investigation ...................................................................................... 115
7.4.2 Building blocks ................................................................................... 125
7.4.3 Modelling database ........................................................................... 136
7.5 Phase 4 - Application of virtual test .............................................................. 136
7.6 Summary ...................................................................................................... 140
7.7 Validation based on different joint configurations ....................................... 141
7.7.1 Partially potted inserts ...................................................................... 141
7.7.2 Corner joints ...................................................................................... 148
7.7.3 Conclusion ......................................................................................... 153
8 Development of novel sandwich panel joints ................................................... 155
8.1 Virtual testing of design alternatives ............................................................ 157
8.2 Validation by experimental investigation ..................................................... 160
9 Summary and outlook ..................................................................................... 163
Literature .............................................................................................................. 165
Appendix A – Constituent level .............................................................................. 179
A1 Implemented material models of Nomex honeycomb ................................. 179
A2 Implemented material models for face sheets ............................................. 183
A3 Implemented material models for adhesives ............................................... 187
Appendix B – Structural element level ................................................................... 192
B1 Sandwich bending test details .......................................................................... 192
B2 Comparison of modelling approaches in case of bending ................................ 194
B3 Frame shear test details ................................................................................... 195
Appendix C – Sub-component level ........................................................................ 196
C1 Damage progression for pull-out test on fully potted insert ............................ 196
C2 Implemented cohesive behavior of potting-face contact ................................ 197
C3 Experimental results in novel design study ...................................................... 198
XIII
7.4.1 Investigation ...................................................................................... 115
7.4.2 Building blocks ................................................................................... 125
7.4.3 Modelling database ........................................................................... 136
7.5 Phase 4 - Application of virtual test .............................................................. 136
7.6 Summary ...................................................................................................... 140
7.7 Validation based on different joint configurations ....................................... 141
7.7.1 Partially potted inserts ...................................................................... 141
7.7.2 Corner joints ...................................................................................... 148
7.7.3 Conclusion ......................................................................................... 153
8 Development of novel sandwich panel joints ................................................... 155
8.1 Virtual testing of design alternatives ............................................................ 157
8.2 Validation by experimental investigation ..................................................... 160
9 Summary and outlook ..................................................................................... 163
Literature .............................................................................................................. 165
Appendix A – Constituent level .............................................................................. 179
A1 Implemented material models of Nomex honeycomb ................................. 179
A2 Implemented material models for face sheets ............................................. 183
A3 Implemented material models for adhesives ............................................... 187
Appendix B – Structural element level ................................................................... 192
B1 Sandwich bending test details .......................................................................... 192
B2 Comparison of modelling approaches in case of bending ................................ 194
B3 Frame shear test details ................................................................................... 195
Appendix C – Sub-component level ........................................................................ 196
C1 Damage progression for pull-out test on fully potted insert ............................ 196
C2 Implemented cohesive behavior of potting-face contact ................................ 197
C3 Experimental results in novel design study ...................................................... 198