A Discrete Element Model for Damage and Fatigue Crack Growth of Quasi-Brittle Materials

Autor: Xiaofeng Gao, Georg Koval, Cyrille Chazallon

Publikováno v: Advances in Materials Science and Engineering, Vol 2019 (2019)

The repeatedly applied low-intensity loads would lead to the damage and fatigue crack growth of mechanical structures made of quasi-brittle materials. In numerical modelling, these two mechanisms are normally treated differently and separately; the d

Externí odkaz: https://doaj.org/article/eccf354a47264368bfd4ea71bc813c3a

Design of reinforced pavements with glass fiber grids: from laboratory evaluation of the fatigue life to accelerated full-scale test

Autor: Pierre Hornych, Armelle Chabot, Eric Godard, Cyrille Chazallon, Laurent Brissaud, Yves Le Gal, Daniel Doligez, Mai Lan Nguyen, Medhi Sahli, Georg Koval

Publikováno v: Accelerated Pavement Testing to Transport Infrastructure Innovation. Lecture Notes for Civil Engineering
Lecture Notes in Civil Engineering (LNCE), Vol. 96
6th APT Conference
6th APT Conference, Université Gustave Eiffel, Apr 2022, Nantes, France. pp.329-338 in Lecture Notes in Civil Engineering (LNCE 96), 2020, ⟨10.1007/978-3-030-55236-7_34⟩
Lecture Notes in Civil Engineering ISBN: 9783030552350

International audience; In this paper we present the results of the national French project SolDuGri dealing with pavement reinforcement by glass fiber grids. In this project, an accelerated pavements test (APT) was performed on 6 pavement sections t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab9d59ef6bbe60122dcaf91874f0d010
https://hal.archives-ouvertes.fr/hal-02923681/document

Analytical modelling of thixotropy contribution during T/C fatigue tests of asphalt concrete with the VENoL model

Autor: Jean-Noël Roux, Cyrille Chazallon, Georg Koval, L. Coulon

Publikováno v: Road Materials and Pavement Design
Road Materials and Pavement Design, 2021, 22 (1), ⟨10.1080/14680629.2021.1911833⟩
Road Materials and Pavement Design, Taylor & Francis, 2021, 22 (1), ⟨10.1080/14680629.2021.1911833⟩

The classical modelling of fatigue tests carried out in the laboratory on asphalt concrete consists in predicting the decrease in the overall complex stiffness modulus. However, this approach is li...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecfd5b00a060dea56a09c7d2c54346e0
https://hal.science/hal-03393619

Discrete Element Simulations of 4-Point Bending Fatigue Tests of Asphalt Concrete Samples Reinforced by Fiber glass Grids

Autor: G. Liu, Georg Koval, Cyrille Chazallon

Publikováno v: Proceedings of the 9th International Conference on Maintenance and Rehabilitation of Pavements—Mairepav9
9th MairePAV conference
9th MairePAV conference, Jul 2020, Dübendorf (on line), Switzerland. ⟨10.1007/978-3-030-48679-2_62⟩
Lecture Notes in Civil Engineering ISBN: 9783030486785

This paper studies the fatigue damage of asphalt concrete (AC) under strain controlled load. The 3-phase fatigue life is reproduced by the proposed simulations combining a 2-phase fatigue damage law and the discrete element method (DEM) characterized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b2b9eb964c0aed7f1cf5180f46ac2b9
https://hal.science/hal-03243979

Discrete element model for quasi-brittle rupture under tensile and compressive loading

Autor: Georg Koval, Ba Danh Le, Cyrille Chazallon

Publikováno v: International Journal for Numerical and Analytical Methods in Geomechanics. 40:2339-2352

Summary In the absence of initial cracks, the material behavior is limited by its strength, usually defined in homogeneous conditions (of stress and strain). Beyond this limit, in quasi-brittle case, cracks may propagate and the material behavior ten

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8cc42e9e468f192c8938999e253f94b
https://doi.org/10.1002/nag.2532