• Alan A. CambergEmail author
  • Ina Stratmann
  • Thomas Tröster
Conference paper
Part of the Zukunftstechnologien für den multifunktionalen Leichtbau book series (ZML)


In latest body-in-white (BIW) concepts, engineers take into account a wider range of different materials to pursue a multi-material design approach. However, the lightweight potential of common materials like steel, aluminum or even fiber-reinforcement plastics (FRP) is limited. In keeping with the motto “the best material for the best application”, a new approach for a top-down material design is introduced. With the aim to develop an application tailored material, the multi-material concept is adapted for the thickness dimension of the component. Within this contribution a new optimization- based design methodology is applied on a stiffness relevant car body part. Starting with benchmark simulations of a reference BIW structure, a critical car body component is determined by an internal energy based method and a subsequent sensitivity analysis. The identified demonstrator component is later subdivided into multiple layers and submitted to a first optimization loop in which the developed methodology varies the material parameters for each single layer. Once an optimum for the through-thickness properties of the part is found, further optimization loops with concrete material pendants and manufacturing restrictions are carried out. The result is a hybrid laminate part consisting of steel and FRP plies. To achieve a further improvement in body characteristics and lightweight, the investigated part is redesigned by the aim of topology optimization. Finally, the tailored hybrid stacks are validated in BIW simulations and compared with the reference. The optimization-based approach allows a weight reduction up to 25 % while maintaining or even improving the BIW properties.


Hybrid Materials Optimization Fiber-Metal-Laminates Material Concepts SIMP 


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  1. [1].
    A. A. Camberg, T. Tröster, Optimization-based material design of tailored stacked hybrids for further improvement in lightweight car body structures. Proc Hybrid 2018, 3rd Int Conf Hybrid Mat & Struct (Eds. J. M. Hausmann, M. Siebert, A. von Hehl), Bremen, Germany, 18-19.04.2018, DGM e.V.Google Scholar
  2. [2].
    X. Guo, G.-D Cheng, Recent development in structural design and optimization. Acta Mech Sinica, 26(6), 2010, pp. 807–823.Google Scholar
  3. [3].
    M.P. Bandsøe, Optimal shape design as a material distribution problem. Struct Optim, 1(4), 1989, pp. 1–16.Google Scholar
  4. [4].
    M. Zhou, G.I.N. Rozvany, The COC algorithm, part II: topological, geometry and generalized shape optimization. Comput Methods Appl Mech Eng, 89(1), 1991, pp. 309–336.Google Scholar
  5. [5].
    C. Li, I.Y. Kim, Multi-material topology optimization for automotive design problems. Proc IMechE Part D: J Automobile Engineering, 2017.
  6. [6].
    M.P. Bandsøe, O. Sigmund, Topology optimization: theory, methods and applications, Springer Vieweg, Berlin, Heidelberg, 2013.
  7. [7].
    W. Zuo, K. Saitou, Multi-material topology optimization using ordered SIMP interpolation, Struct Multidisc Optim, 2016.
  8. [8].
    J. Stegmann, E. Lund, Discrete material optimization of general composite shell structures, Int J Numer Meth Engng, 62, 2005, pp. 2009–2027.
  9. [9].
    A. Grüneklee et al., Das Projekt ThyssenKrupp InCar plus. Lösungen für automobile Effizienz. ATZ Extra, Oktober 14, Springer Vieweg Verlag, Wiesbaden, 2014.Google Scholar
  10. [10].
    B. Pohl, S. Rützel, The all new Opel Insignia – Body development and manufacturing, Conf Proc Aachen Body Engineering Days 2017 (Ed. L. Eckstein), Aachen, Germany, 18–19.09.2017, ika RWTH Aachen, 11, 2017, pp. 205–230.Google Scholar
  11. [11].
    J. Helsen, L. Cremers, P. Mas, O. Sas, Global static and dynamic car body stiffness based on a single experimental modal analysis test. Proc Int Conf NVH Eng (ISMA2010) including USD2010 (Ed. P. Sas), Leuven, Belgium, 20–22.09.2010, Katholieke Universiteit Leuven, Department of Mechanical Engineering, 2010, pp. 2505–2521.Google Scholar
  12. [12].
    O. Danielsson, A. González Cocaña, Influence of Body Stiffness on Vehicle Dynamics Characteristics in Passenger Cars, Chalmers University of Technology, Göteborg, 2015.Google Scholar
  13. [13].
    B. Rediers, B. Yang, V. Juneja, Static and dynamic stiffness – One test both results. Proc 16th Int Modal Analysis Conf IMAC (Ed. A. L. Wicks), Santa Barbara, Calif. USA, 02–05.02.1998, Society for Experimental Mechanics, Inc., 1998, pp. 30–35.Google Scholar
  14. [14].
    D. E. Malen, Fundamentals of Automobile Body Structure Design, SAE International, 2011.Google Scholar
  15. [15].
    M. Kiani, H. Shiozaki, K. Motoyama, Simulation-based design optimization to develop a lightweight Body-In-White structure focusing on dynamic and static stiffness. Int J Vehicle Design, Vol.67, No.3, 2015, pp. 219–236.Google Scholar
  16. [16].
    H.-H. Braess, U. Seiffert (Eds.): Vieweg Handbuch Kraftfahrzeugtechnik, Springer Vieweg, Berlin, Heidelberg, 2013.Google Scholar
  17. [17].
    A. A. Camberg, K. Engelkemeier, J, Dietrich, T. Heggemann, Top-Down Design of Tailored Fibre-Metal Laminates., 2|2018, Springer Vieweg Verlag, Wiesbaden, 2018.Google Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Alan A. Camberg
    • 1
    Email author
  • Ina Stratmann
    • 2
  • Thomas Tröster
    • 1
  1. 1.Paderborn UniversityPaderbornGermany
  2. 2.Institute for Rail Vehicles and Transport SystemsAachenGermany

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