3D ductile crack propagation within a polycrystalline microstructure using XFEM

Beese, Steffen; Löhnert, Stefan; Wriggers, Peter

doi:10.1007/s00466-017-1427-y

Cited by 25 publications

(7 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…237,244 Another multiscale method suitable for localization effects is based on XFEM/ GFEM. 226,227,[244][245][246][247][248] For specific finite elements on the macro scale, an enrichment scheme and enrichment functions are used to effectively map the behavior on the fine scale and thus directly incorporate it into the coarse scale simulation. Research on multi-scale simulation of fiber-reinforced composites shows that the inaccuracies to which geometrically conformal modeling of heterogeneities generally leads are negligible for sufficiently refined fine-scale meshes.…”

Section: Macroscopic Models Have the Advantage Of Very Fast Computationmentioning

confidence: 99%

“…Given boundary conditions derived from the macroscale solution, the fine‐scale region is simulated separately, and the result is either projected onto the macroscale 240–243 or coupled to the macroscale discretization 237,244 . Another multiscale method suitable for localization effects is based on XFEM/GFEM 226,227,244–248 . For specific finite elements on the macro scale, an enrichment scheme and enrichment functions are used to effectively map the behavior on the fine scale and thus directly incorporate it into the coarse scale simulation.…”

Section: Simulation and Modelingmentioning

confidence: 99%

See 1 more Smart Citation

New perspectives on carbon reinforced concrete structures—Why new composites need new design strategies

Curbach,

Hegger,

Bielak

et al. 2024

Civil Engineering Design

View full text Add to dashboard Cite

In civil engineering, carbon is typically regarded as a modern material to serve as reinforcement in concrete structures. Compared to steel reinforcement, it features two substantial benefits: It is not sensitive to corrosion, and has an enormously increased tensile strength. In contrast, carbon reinforcement is sensitive to lateral pressure and lacks the property of strain hardening. As a first step of establishing carbon reinforced concrete as a new building composite material, carbon reinforcement has basically served to replace the state‐of‐the‐art steel reinforcement. This target led to pioneering findings with respect to determining the material properties of the composite and developing advanced individual components. However, barely substituting steel by carbon does not allow to fully utilise the carbon's benefits while its disadvantageous properties reveal the limits of this approach. Instead, novel design principles are required to meet the material's nature aiming at appropriately using its beneficial properties.Currently, new construction principles are being researched for high‐performance building material combinations such as textile and carbon reinforced concrete. This paper provides an overview of baselines in the preliminary stages of this research. The overview includes history, inspiration, concrete matrices, non‐metallic reinforcement, structural elements, modelling, production, tomography, and sustainability. The objective of the study is to provide a baseline for the envisaged development of principles for future construction: radically new concepts for the design, modelling, construction, manufacturing, and use of sustainable, resource‐efficient building elements made of mineral building materials with the aim of entirely benefiting from the materials’ potential.This article is protected by copyright. All rights reserved.

show abstract

Section: Macroscopic Models Have the Advantage Of Very Fast Computationmentioning

confidence: 99%

Section: Simulation and Modelingmentioning

confidence: 99%

New perspectives on carbon reinforced concrete structures—Why new composites need new design strategies

Curbach,

Hegger,

Bielak

et al. 2024

Civil Engineering Design

View full text Add to dashboard Cite

show abstract

“…Isogeometric analysis for scaled boundaries results from the use of a novel formulation on the basis of the scaled‐boundary finite element method (SBFEM) 17 and geometries described by trial functions based on nonuniform rational B‐splines (NURBS). In contrast, in the second project, the extended finite element method (XFEM) 18 and the generalized finite element method (GFEM) will be used and the multiscale projection methods 19 developed in order to simulate the resilience and the fracture behavior of heterogeneous structures and shells. The numerical advancements in research area C are to take place in close coordination with the undertaken experimental investigations on the development of internal shell structures 20 ‐ as the next step to resource‐efficient carbon reinforced concrete constructions ‐ and on the load‐bearing behavior of cracked carbon reinforced concrete membranes 21…”

Section: Selected Collaborative Research Focimentioning

confidence: 99%

Collaborative research on carbon reinforced concrete structures in the CRC/TRR 280 project

Beckmann

Bielak

Bosbach

et al. 2021

Civil Engineering Design

View full text Add to dashboard Cite

New materials allow new building designs and construction types. However, initial construction projects using the new materials show that traditional construction principles ‐ in the case of carbon reinforced concrete those derived from steel reinforced concrete ‐ are still being used. In other words, conventional materials are merely substituted. Only combined with intelligent construction strategies it is possible to exploit the full potential of innovative materials. Detached from established patterns of thought, the fundamentals for a new way of building with concrete are to be created in the frame of the Collaborative Research Centre Transregio (CRC/TRR) 280 project “Design Strategies for Material‐Minimised Carbon Reinforced Concrete Structures–Principles of a New Approach to Construction” at Technische Universität Dresden (TUD) and RWTH Aachen University. These are to be based on profound insights into the mechanical behavior of novel mineral structures. Innovative lightweight construction strategies and material composites reduce resource and energy consumption while maintaining high levels of usability, structural safety, and durability, while the aspirational esthetics make a valuable contribution to the culture of building. The long‐term research alliance of TUD and RWTH pools the excellent competencies, inspiring research into material‐minimized construction with mineral composites. The article highlights the research activities planned for the first period from July 2020 to June 2024.

show abstract

“…Mit einer neuartigen Formulierung auf Basis der Scaled‐Boundary Finite Element Method (SBFEM) [17] und mit durch NURBS‐basierte Ansatzfunktionen beschriebenen Geometrien ergibt sich eine isogeometrische Analyse für skalierte Ränder (SBIGA). Demgegenüber wird in dem anderen Projekt die eXtended Finite Element Method (XFEM) [18] bzw. die Generalized Finite Element Method (GFEM) verwendet und die Mehrskalenprojektionsmethode [19] weiterentwickelt, um die Resilienz und das Bruchverhalten heterogener Strukturen bzw.…”

Section: Ausgewählte üBergreifende Forschungskomplexeunclassified

Standortübergreifende Forschung zu Carbonbetonstrukturen im SFB/TRR 280

et al. 2021

View full text Add to dashboard Cite

Neue Materialien ermöglichen neue Bauformen und Konstruktionsarten. Erste Bauprojekte mit den neuen Materialien zeigten aber, dass zunächst weiterhin nach traditionellen – im Falle von Carbonbeton dem Stahlbeton entlehnten – Konstruktionsprinzipien gebaut wird, herkömmliche Materialien also lediglich substituiert werden. Erst in Verbindung mit intelligenten Konstruktionsstrategien wird das volle Potenzial innovativer Werkstoffe ausgenutzt. Losgelöst von etablierten Denkmustern sollen im Sonderforschungsbereich/Transregio (SFB/TRR) 280 „Konstruktionsstrategien für materialminimierte Carbonbetonstrukturen – Grundlagen für eine neue Art zu bauen“ an der Technischen Universität Dresden und der RWTH Aachen University die Grundlagen für eine neue Form des Bauens mit Beton auf Basis tiefgreifender Erkenntnisse zum strukturmechanischen Verhalten neuartiger, mineralisch basierter Komposite geschaffen werden. Die neuen Leichtbau‐Konstruktionsstrategien und Werkstoffkombinationen reduzieren Ressourcen‐ und Energieverbrauch bei gleichzeitig hoher Gebrauchstauglichkeit, Tragsicherheit und Dauerhaftigkeit; eine anspruchsvolle Ästhetik leistet einen Beitrag zur Baukultur. Der langjährige Forschungsverbund von TU Dresden und RWTH Aachen vereint exzellente Kompetenzen, was die Erforschung des materialminimierten Bauens mit mineralischen Kompositen beflügeln wird. Im Beitrag werden die für den Zeitraum Juli 2020 bis Juni 2024 geplanten Forschungsaktivitäten vorgestellt.

show abstract

3D ductile crack propagation within a polycrystalline microstructure using XFEM

Cited by 25 publications

References 51 publications

New perspectives on carbon reinforced concrete structures—Why new composites need new design strategies

New perspectives on carbon reinforced concrete structures—Why new composites need new design strategies

Collaborative research on carbon reinforced concrete structures in the CRC/TRR 280 project

Standortübergreifende Forschung zu Carbonbetonstrukturen im SFB/TRR 280

Contact Info

Product

Resources

About