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Materials with an optimal load-carrying behavior are often composed of different material phases, arranged in a certain material microstructure, in order to combine the advantageous properties of each phase. Whilst optimal arrangements for the respective types of loading have evolved naturally for biological materials, the development of many man-made materials is still governed by intuition and trial-and-error approaches.

This research project has been working on the optimal performance of materials with respect to dynamic and even impact loading, allowing for the performance-based development of energy-absorbing materials. The problem has been tackled from two directions:

·  in order to specify the mechanical behavior of materials showing time-dependent and highly dissipative behavior, the multiscale approach of material description, so far restricted to a homogenous deformation pattern within a representative volume element, has been extended to localized deformation situations as observed in the case of impact loading.

·  the relations between impact loading, macroscopic material properties, and objective functions related to energy dissipation in composite materials have been expressed by general master curves allowing for the direct optimization depending on the respective load characteristics. The performance of the developed optimization procedure is assessed by experimental validations of the impact of spherical bodies with prescribed velocity on material samples characterized by varying microstructures.

Consequently, the project team originally consisted of two teams: The group at DCAMM/DTU (Danish Center for Applied Mathematics and Mechanics / Danmarks Tekniske Universitet), responsible for the micro-scale description and the upscaling procedure by topology optimization, and the group for the optimization procedures on the structural scale (i.e. macroscale) at TUM. During the project phase, PI Roman Lackner successfully applied for a professorship at the Unit of Material Technology Innsbruck and accepted the subsequent call. By this extension of the research team, we have gained new opportunities by the access to the specialized laboratories at the Unit of Material Technology Innsbruck.

 

01-01-1970
IGSSE setup of interdisciplinary research in project teams
16.05.17

Apply now: 12th call for proposals

IGSSE supports up to 10 new project teams

Call closes 2 July 2017

11.06.17

Apply now: IGSSE travel grant for ICCE 2017

28-29 September 2017, TU Darmstadt

Submission deadline for abstracts: 18 June 2017

08.06.17

IGSSE Forum 2017

29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen

14.05.17

Climate-KIC: Join the PhD Catapult

Two-week thematic summer schools across Europe

04.05.17

IAS Symposium: Selected topics in science and technology

8-10 May 2017, IAS Building, Garching Campus

02.05.17

IAS Coffee Talk with PTL Florian Praetorius

3 May 2017, 1 pm, TUM IAS Building, Garching Campus

23.02.16

10th IGSSE Forum

1 - 4 June 2016, TUM Science and Study Center, Burghausen

05.06.16

10th IGSSE Forum

Smart cooperation - science and technology in, with and for society

15.12.15

The Science of Cooking

Doctoral Candidates explore the Secrets of a great Dinner

26.11.15

ATUMS@IGSSE

Having heard of a great Canadian Kick-Off Meeting, everyone at IGSSE was thrilled to welcome the...

20.11.15

Breakfast at IGSSE´s

Meet the IGSSE team every other month! All the things IGSSE members wanted to asked but never dared...

13.10.15

Save the Date: Canadian ATUMS Speaker on "Global Science- Global Career"

26. November 2015, 6-8 pm, IAS Faculty Club, Garching Campus

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Friday, 09. June 2017
Workshop: Standing up for science
9 June 2017, 9am-4pm, Brussels
Apply now: McKinsey 'Forschergeist' symposium
9-11 June 2017, Berlin For doctoral researchers and postdocs!