Reliable line production processes and simulation tools play a central role for the structural integration of thermoplastic composites in advanced lightweight constructions. Provided that material- adapted joining technologies are available, they can be applied in heavy-duty multi-material designs (MMD). A load-adapted approach was implemented into the new fully automatic and faulttolerant thermo mechanical flow drill joining (FDJ) concept. With this method it is possible to manufacture reproducible high strength FRP/metal-joints within short cycle times and without use of extra joining elements for the first time. The analysis of FDJ joints requires a simplified model of the joint to enable efficient numerical simulations. The present work introduces a strategy in modeling a finite-element based analogous-approach for FDJ-joints with glass fiber reinforced polypropylene and high-strength steel. Combined with a newly developed section-force related failure criterion, it is possible to predict the fundamental failure behavior in multi-axial stress states. The functionality of the holistic approach is illustrated by a demonstrator that represents a part of a car body-in-white structure. The comparison of simulated and experimentally determined failure loads proves the applicability for several combined load cases.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa.de:bsz:ch1-qucosa-152889 |
| Date | 20 April 2015 |
| Creators | Seidlitz, Holger, Ulke-Winter, Lars, Gerstenberger, Colin, Kroll, Lothar |
| Contributors | Scientific Research Publishing Inc.,, Technische Universität Chemnitz, Fakultät für Maschinenbau |
| Publisher | Universitätsbibliothek Chemnitz |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:article |
| Format | application/pdf, text/plain, application/zip |
| Source | Seidlitz, H. , Ulke-Winter, L. , Gerstenberger, C. and Kroll, L. (2014) Dimensioning of Punctiform Metal-Composite Joints: A Section-Force Related Failure Criterion. Open Journal of Composite Materials, 4, 157-172. doi: 10.4236/ojcm.2014.43018 |
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