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Author(s):	Storm, Johannes; Chihadeh, Ahmad; Graf, Wolfgang; Kaliske, Michael
Title:
Abstract:	Die Berechnung dynamischer Versagensprozesse in Tragstrukturen ist eine ingenieurtechnische Herausforderung und Triebkraft der methodischen Entwicklung. Im Beitrag werden numerische Modelle für spröden Materialbruch und die partielle Ablösung der Bewehrung bei impulsartiger Bauteilbeanspruchung behandelt. Für das Versagen in Grenzschichten werden Methoden zur Reduktion des Rechenaufwands gezeigt. Grundlegend neue Ansätze sind aus der Forschung zur Rissberechnung hervorgegangen und werden mit einigen Beispielen vorgestellt. Der vorliegende Beitrag wurde am 15. Okt. 2021 im Rahmen des 25. Dresdner Baustatik-Seminars präsentiert. Loadcase impact - modeling of highly dynamic deformation behavior of reinforced concrete structures The challenging calculation of dynamic fracture processes is driving the development of novel computational methods. In this contribution, models for brittle fracture and partial delamination of reinforcements at impact loading are discussed. Methods for the reduction of computational effort in describing interface failure are shown. The recent developments in modeling of fracture mechanics have yield novel approaches for crack nucleation and propagation, which are discussed by several examples.
Source:	Bautechnik 99 (2022), No. 10
Page/s:	746-757
Language of Publication:	German

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