The group of Daniel Balzani is active in developing methods for the continuum mechanical modeling and simulation of complex materials. Focus is on the development of scale-coupling numerical methods as well as new material models which enable the simulation of materials such as multiphase steels, textile membranes, soft biological tissues, fiber-concrete composites, or hardmetal composites by incorporating uncertainties at different scales. Increasingly, the experimental characterization of nonlinear material properties as well as the unique identification of material parameters become more important.
News of the group
MakieCon 2023
02.05.2023: Dennis Ogiermann and Max Köhler gave a presentation titled "Visualizing PDE Solutions on Unstructured Meshes with Makie.jl" at MakieCon 2023 in Jena. The talk centered around finite element visualizations using the Julia package Makie.jl, for which both employees are developing a package called FerriteViz.jl.
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Advanced seminar "Micropolar Continua and beyond" at TU Berlin
29.03.2023: A talk on "Numerically stable mixed FE for higher-order electromechanical coupling in piezoelectric solids" was successfully given by Prince Henry Serrao (research assistant at the Chair of Continuum Mechanics) and Dr. Sergey Kozinov during the Advanced Seminar on "Micropolar Continua and beyond". This seminar was organised at TU Berlin at the Department of Mechanics, Chair of Continuum Mechanics and Materials Theory by Prof. Wolfgang H. Müller.
The black belt of science
03.02.2023: On January 23rd, Dennis Wingender defended his thesis "Efficient Simulation of Brittle and Ductile Crack Propagation at Finite Strains through Metallic Microstructures based on Voxel Data". The thesis was awarded the highest grade with distinction. This means that Dennis W., a great friend of judo, now officially has a black belt in science.
The following journal publications were produced during his PhD studies: Simulation of crack propagation through voxel-based, heterogeneous structures based on eigenerosion and finite cells, Simulation of crack propagation based on eigenerosion in brittle and ductile materials subject to finite strains
22nd GAMM Seminar on Microstructures
26.01.2023: Maximilian Köhler, a staff member at the Chair of Continuum Mechanics at Ruhr-University Bochum, participated in the 22nd GAMM Microstructure Seminar and presented his talk titled "Advances in relaxed continuum damage mechanics at finite strains: Adaptive convexification and strain softening". The seminar was held at the TU Vienna. In the talk, he presented the new Reconvexify approach, which was recently published in this paper.
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Africomp 2022 - Presentations in Capetown
02.11.2022: From the 2nd to 4th November 2022, the 5th African Conference on Computational Mechanics took place in Capetown, South Africa. The chair was represented by Dennis Wingender and Niklas Miska, who held presentations on their research topics and participated in the scientific exchange. Naturally, some time off the conference was used to explore the unique venue and its surroundings.
Poster presentation at 5th Young Materials Researchers Day
28.10.2022: Poster on “Second-order collocation based mixed finite element method for flexoelectric solids” was presented by Prince Henry Serrao (research assistant at the Chair of Continuum Mechanics) at the 5th Young Materials Researchers (YMR) Day. The event was organised by Materials Research Department (MRD) at Ruhr-Universität Bochum as a means for scientific exchange and organizing networking among master students, PhD candidates and recent postdocs. More info
Presentations at the 9th GACM Colloquium on Computational Mechanics
21.09.2022: The 9th annual colloquium on continuum mechanics organised by the German Association for Computational Mechanics (GACM) took place from the 21st to 23rd of September. This event was jointly hosted by the Institute of Structural Analysis and the Institute of Mechanics at the University of Duisburg-Essen. Dennis Ogiermann, Sharan Nurani Ramesh and Johannes Riesselmann presented their current work in the fields of biomechanics and gradient-enhanced mixed finite element methods.
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Chair of Continuum Mechanics at the Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM'22, Aachen)
15.08.2022: 92nd Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM'22), which took place in Aachen from August 15 to 19, 2022, has successfully come to an end. The Chair of Continuum Mechanics presented a whole range of current research work, from biomechanics to higher-order models for microelectromechanical structures. The lecture program can be found under the following link. A total of 13 presentations were given: Experienced scientists and fresh doctoral students presented new scientific developments of the Chair. This was the first opportunity in the last two years to meet in the presence the entire "mechanical" community in Germany resulting in lively discussions about current scientific questions and potential cooperation. See you next year at the GAMM annual meeting in Dresden!
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Presentations at the WCCM 2022
31.07.2022: This year's "15th World Congress on Computational Mechanis (WCCM)" (initially planned to take place in Yokohama) was held in online format again. Here, during the time period from 31. July to 05. August, Niklas Miska, Mehran Motevalli, Dennis Ogiermann, Johannes Riesselmann, Klemens Uhlmann and Dennis Wingender used the opportunity to present their current research results and get into the exchange of scientific ideas on the international stage.
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International Symposium in honor of Professor Gerhard A. Holzapfel’s 60th birthday
30.06.2022: Biomechanics:
Challenges of the Next Decade, Graz, June 30 – July 1, 2022
Prof. Dr.-Ing. Daniel Balzani gives talk about Mesh-independent simulation of damage in soft biological tissues
Objectives of the symposium
Biomechanics is a challenging subject that studies living systems by means of the development, extension, and application of mechanics to better understand biological, engineering and medical phenomena. Nonlinear continuum mechanics, multiscale modeling, advanced 3D imaging techniques together with unprecedented predictive computational power allow us to solve cutting-edge biomechanics problems with rather complex patient-specific anatomies.
Interdisciplinary approaches that address phenomena at the nano-, micro-, or macro-levels are often required to solve such problems. Mechanics, natural sciences such as biophysics, biochemistry, and mathematics, as well as biomedical-, tissue-, health care-, computer- and biomolecular engineering sciences need to be combined with medicine to tackle real-world problems.
This symposium aims to gather the expertise of established and emerging scientists with backgrounds in the relevant areas of solid (bio)mechanics. It will highlight the state-of-the-art research in mathematical modeling, computational simulation, and experimental methods for testing of a range of biological tissues. In addition, it will highlight some major challenges of the next decade and how we can be better prepared for them.
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Contact
Ruhr-University Bochum
Department of Civil and Environmental Engineering
Chair of Continuum Mechanics
Building IC Floor 03, room 741
P.O. Box No. 5
Universitätsstraße 150
44801 Bochum
Germany
Tel. +49 234 32-26048
Fax +49 234 32-14229
Mail:
sekretariat@lkm.rub.de
