C 02

3D Structural Puzzle – Numerical Multi Scale Shape and Topology Optimisation Methods to Additively Manufacture Optimal Structures from Optimised Pieces

Prof. Dr.-Ing Kai-Uwe Bletzinger, Project Leader

Dr.-Ing. Reza Najian Asl
Dr.-Ing. Roland Wüchner

Summary of C 02

This project deals with additively manufactured structures considered as large 3D puzzles and multi scale optimisation aspects. Based on Vertex Morphing, numerical methods for supporting a holistic, simulation based multi scale optimisation tool chain will be developed. The goal is to create optimised individual structural pieces which are assembled to form an overall optimal structure. Additive manufacturing is the ideal mean of greatest potential to combine industrial efficient production with individual design and structural layout. The methods will be developed and tested with prototype products and processes in close cooperation.

Prof. Dr.-Ing Kai-Uwe Bletzinger

is the head of the chair of structur alanalysis. He is responsible for all actions, in particular regarding research, education and administration. In particular he is responsible for the proposed project and its coordination within the TRR. He will guide all staff in that context and decide about research actions.

kub(at)tum.de

M. Sc. Aditya Lakshmi Ghantasala

aditya.ghantasala(at)tum.de

2017 | Bletzinger, K.-U.: Shape Optimization. In: Encyclopaedia of Computational Mechanics, Erwin Stein, René de Borst and T. J. R. Hughes, eds.: John Wiley & Sons, Ltd.

2017 | Najian Asl, R.; Shayegan, S.; Geiser, A.; Hojjat, M.; Bletzinger, K.-U.: A consistent formulation for imposing packaging constraints in shape optimization using Vertex Morphing parametrization. In: Structural and Multidisciplinary Optimization, vol. 56, no. 6, pp. 1507-1519.

2015 | Breitenberger, M.; Apostolatos, A.; Philipp, B.; Wüchner, R.; Bletzinger, K.-U.: Analysis in computer aided design: Nonlinear Isogeometric B-Rep Analysis of shell structures. In: Computer Methods in Applied Mechanics and Engineering, vol. 284, pp. 401-457.

2014 | Bletzinger, K.-U.; Ramm, E.: Computational form finding and optimization. In: Shell Structures for Architecture: Form Finding and Optimization, S. Adriaenssens, P. Block, D. Veenendaal and C. Wil- liams, eds., pp. 45-56: Routledge.

2014 | Hojjat, M.; Stavropoulou, E.; Bletzinger, K.-U.: The vertex morphing method for node-based shape optimization. In: Computer Methods in Applied Mechanics and Engineering, vol. 268, pp. 494-513.

2014 | Bletzinger, K.-U.: A consistent frame for sensitivity filtering and the vertex assigned morphing of optimal shape. In: Structural and Multidisciplinary Optimization, vol. 49, no. 6, pp. 873-895.

2014 | Kiendl, J.; Schmidt, R.; Wüchner, R.; Bletzinger, K.-U.: Isogeometric shape optimization of shells using semi-analytical sensitivity analysis and sensitivity weighting. In: Computer Methods in Applied Mechanics and Engineering, vol. 274, pp. 148- 167.

2013 | Breitenberger, M.; Wüchner, R.; Bletzinger, K.-U.: Design and Analysis of Curved Precast Concrete Components Using CAD-based Approaches to build lightweight structures in the future. In: Beton- und Stahlbetonbau, vol. 108, no. 11, pp. 783-791.