Three-dimensional Finite Element modeling of UHPC using total strain crack models

Author(s) : N. Naeimi, M. A. Moustafa
Paper category : Proceedings
Book title : UHPFRC 2017 Designing and Building with UHPFRC: New large-scale implementations, recent technical advances, experience and standards
Editor(s) : F. Toutlemonde & J. ResplendinoT.Ch.
Print-ISBN : 978-2-35158-166-7
e-ISBN : 978-2-35158-167-4
Publisher : RILEM Publications SARL
Publication year : 2017
Pages: 313 - 324
Total Pages : 12
Language : English

Abstract: The use of UHPC is currently expanding worldwide from bridge deck joints and connections to full components and larger applications. To improve structural design of UHPC and accurately estimate sections capacities for ultimate design conditions, a better understanding of the damage mechanism of the material is needed. Only few studies investigated the behavior of full UHPC structural elements at failure, which are mainly experimental studies. This study aims at extending the use of computational methods by investigating the validity of Total Strain Crack model for capturing the behavior of UHPC until failure. This model, as readily implemented in DIANA FEA software, is used to study the 3D behavior of UHPC under pure tension and compression. The total strain crack model allows independent user-defined stress-strain relationships input in tension and compression, while incorporating sustained tensile strength and strain hardening for UHPC. Published material tests were utilized to develop the finite element model and check analysis results.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00

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