Article
Mathematics, Interdisciplinary Applications
Abdallah Accary, Hicham Benniou, Yann Malecot, Matthieu Briffaut, Laurent Daudeville
Summary: This paper investigates the influence of saturation ratio on perforation and penetration of concrete by simulating the impact of ogive-nosed steel projectile on plain concrete targets surrounded by steel jackets.
COMPUTATIONAL PARTICLE MECHANICS
(2023)
Article
Computer Science, Interdisciplinary Applications
Yue Chen, Mark B. Jaksa, Yien-Lik Kuo, Brendan T. Scott
Summary: The study validates the numerical scale model against field data and suggests that ground settlement is a better indicator than pressure for assessing the number of RDC passes.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Construction & Building Technology
Gang Ma, Youjun Xie, Guangcheng Long, Zhuo Tang, Xiang Zhou, Xiaohui Zeng, Jiangteng Li
Summary: By combining discrete element method (DEM) and Burgers model, this study analyzes the creep characteristics of concrete. The simulation results show that the Burgers model effectively reflects the creep behavior of concrete and reveals phenomena such as decreasing porosity, decreasing creep contribution from interfacial transition zone (ITZ), and regular directional distribution of force-chain strength.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Loay Al Khateeb, Kumar Anupam, Sandra Erkens, Tom Scarpas
Summary: This paper aims to simulate the micromechanical behavior of asphalt mixtures during the compaction process using the Discrete Element Method (DEM). The study successfully validated the model through verification process and Superpave Gyratory Compaction (SGC) test. Results showed that the temperature variation significantly affects the compactability and compaction efforts of asphalt mixtures.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Poornachandra Vaddy, Venkataraman Pandurangan, Krishna Prapoorna Biligiri
Summary: This study developed a DEM framework to simulate pervious concrete (PC) and predict its flexural behavior. Through laboratory experiments and numerical simulations, the flexural response of PC was successfully simulated. This approach can be used to design PC mixtures, reducing material and labor waste.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Computer Science, Interdisciplinary Applications
Yue Chen, Mark B. Jaksa, Brendan T. Scott, Yien-Lik Kuo
Summary: This paper presents a combined FEM-DEM model to investigate the behavior of a 1:13 scale 3-sided roller. The numerical results are compared with field observations and show good agreement. The study also examines the influence of the twin modules of the roller and suggests avoiding using the total weight of the roller to predict the energy imparted to the ground and the depth of influence.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Engineering, Mechanical
Ze-Yi Wang, Quan-Quan Guo, Chuan-Chuan Hou
Summary: This study investigates the ballistic performance of PC slabs under hard missile impact through numerical modeling. It is found that prestress is the main reason for enhancing the ballistic resistance of PC slabs, with the increase in reinforcement ratio due to prestressing bars as a secondary reason, and the confinement effect applied to the concrete being the major reason for the increase in ballistic resistance.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Construction & Building Technology
R. Pieralisi, S. H. P. Cavalaro, A. Aguado
Summary: This study proposes an alternative numerical strategy combining different DEM models to simulate the compaction process and predict the mechanical performance of pervious concrete. The results show that this simulation strategy is capable of predicting the compressive and tensile performances of pervious concrete mixes while capturing the fracture pattern observed in the experimental program. This opens up the possibility of performing a numerical parametric design of mix composition and production processes before undertaking experimental verifications, potentially reducing the number of tests needed to achieve the composition that better suits the mechanical requirements of each application.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Engineering, Mechanical
Ze-Yi Wang, Quan-Quan Guo, Chuan-Chuan Hou
Summary: This study numerically investigates the ballistic performance of prestressed concrete (PC) slabs using finite element modeling. The research reveals that the prestress is the main reason for enhancing the ballistic resistance of PC slabs, while the increase in reinforcement ratio due to prestressing bars is a secondary reason. The study also proposes a semi-empirical formula for predicting the critical perforation velocity of PC slabs, which provides more accurate predictions compared to existing formulas.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Construction & Building Technology
Andac Lulec, Vahid Sadeghian, Frank J. Vecchio
Summary: This study presents a macro-modeling method for analyzing reinforced and prestressed concrete slabs under soft and hard missile impact loads. The method is based on the Modified Compression Field Theory and incorporates a rational approach to eliminate the need for extensive material characterizations. An iterative self-calibrating procedure was developed to determine erosion limits and damping coefficients, expanding the applicability range of the method. Special considerations were given to strain rate effects and advanced material mechanisms. The performance of the method was evaluated through modeling missile impact tests and conducting parametric studies, showing it to be an efficient and reliable approach for analyzing concrete slabs under impact loading.
ACI STRUCTURAL JOURNAL
(2022)
Article
Engineering, Chemical
Fei Wang, Yrjo J. Huang
Summary: This study investigates the process of granular compaction and highlights the significant impact of wall effect and gravity on particle arrangement. Increasing gravity can accelerate the crystallization process, while shear force between particles may slow it down.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Mathematics, Interdisciplinary Applications
Zhanyou Yan, Huien Ge, Shaohua Guo, Xiaoyong Wu, Guofang Zhao
Summary: This study obtained microscopic parameters for the discrete element model through compressive tests of concrete mixture cubes, and established a three-dimensional discrete element model of cement mixture. The analysis of meso-fracture behavior showed that the discrete element method can effectively simulate the mechanical behavior of discontinuous and heterogeneous materials in cement mixture.
COMPUTATIONAL PARTICLE MECHANICS
(2022)
Article
Construction & Building Technology
Yang Liu, Zhendong Qian, Yuming Yang, Qibo Huang, Xiangfei Zhang
Summary: This study investigates the effects of curing reaction degree (CRD) on the field compaction quality of epoxy asphalt concrete (EAC). The results show that highly cured EAM requires larger compaction loads for proper compaction, and uneven CRD has negative impacts on the compaction quality.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2022)
Article
Engineering, Geological
Mincai Jia, Bo Liu, Jianfeng Xue, Guoqing Ma
Summary: The paper introduces a three-dimensional discrete element-finite difference coupling method and validates its effectiveness in dynamic compaction tests. It is found that dynamic stress propagation and tamper penetration play different roles in soil deformations, and allocating more tamping energy to the bearing capacity mechanism can improve the efficiency of dynamic compaction.
Article
Construction & Building Technology
Xiaoping Ji, Bo Han, Jianming Hu, Shouwei Li, Yue Xiong, Enyong Sun
Summary: In this study, a predictive method for the maximum dry density of soil-rock mixtures (SRM) was developed using numerical simulation and laboratory testing. Factors influencing the dry density of SRM were also investigated. The results showed that the proposed method has high predictive accuracy and can address the issue of determining the dry density of SRM in a laboratory.
ROAD MATERIALS AND PAVEMENT DESIGN
(2022)
Article
Engineering, Civil
C. Boudaud, J. Baroth, L. Daudeville
CANADIAN JOURNAL OF CIVIL ENGINEERING
(2016)
Article
Engineering, Civil
Y. Sieffert, F. Vieux-Champagne, S. Grange, P. Gamier, J. C. Duccini, L. Daudeville
ENGINEERING STRUCTURES
(2016)
Article
Engineering, Mechanical
Serguei Potapov, Aurelien Masurel, Philippe Marin, Laurent Daudeville
JOURNAL OF ENGINEERING MECHANICS
(2017)
Article
Engineering, Mechanical
Serguei Potapov, Aurelien Masurel, Philippe Marin, Laurent Daudeville
JOURNAL OF ENGINEERING MECHANICS
(2017)
Article
Architecture
E. Fritsch, Y. Sieffert, H. Algusab, S. Grange, P. Garnier, L. Daudeville
INTERNATIONAL JOURNAL OF ARCHITECTURAL HERITAGE
(2019)
Article
Physics, Multidisciplinary
Andria Antoniou, Laurent Daudeville, Philippe Marin, Ahmad Omar, Serguei Potapov
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
(2018)
Article
Chemistry, Multidisciplinary
Abdallah Accary, Yann Malecot, Laurent Daudeville
APPLIED SCIENCES-BASEL
(2019)
Article
Mathematics, Interdisciplinary Applications
Hicham Benniou, Abdallah Accary, Yann Malecot, Matthieu Briffaut, Laurent Daudeville
Summary: The discrete element model proposed in this paper addresses the macroscopic behavior of concrete while taking into account the presence of free water in pores. This new constitutive model considers the influence of saturation ratio on triaxial compressive stresses in concrete structures subjected to severe loading. By introducing a dependency between water saturation ratio and inelastic deformation due to pore closure, the model aims to model cracking and compaction at the interaction level between discrete elements.
COMPUTATIONAL PARTICLE MECHANICS
(2021)
Article
Engineering, Mechanical
J. Baroth, M. Briffaut, D. Vu, Y. Malecot, L. Daudeville
Summary: This paper presents analytical and finite element models for predicting perforation of reinforced concrete slabs under impacts. The finite element simulations and analytical predictions are consistent with experimental tests.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Chemistry, Physical
Alejandro Ortega Laborin, Emmanuel Roubin, Yann Malecot, Laurent Daudeville
Summary: This paper conducts an in-depth study on the theoretical basis of strong discontinuity methods for local fracture simulations using the Embedded Finite Element Method (E-FEM). A new proposal of strong discontinuity enhancement functions is presented, improving basic kinematic coherence and robustness of E-FEM techniques for fracture simulations. Simulation results demonstrate increased robustness and potential for higher level application of E-FEM techniques.
Article
Computer Science, Interdisciplinary Applications
A. Ortega, E. Roubin, Y. Malecot, L. Daudeville
Summary: This paper analyzes the application of the Embedded Finite Element Method (E-FEM) in simulating local material heterogeneities. It discusses the evolution of weak discontinuity models within the E-FEM framework and establishes a theoretical basis for enhancing weak discontinuities. The paper introduces two enhancement functions and evaluates their performance through numerical simulations.
COMPUTERS & STRUCTURES
(2022)
Article
Mathematics, Interdisciplinary Applications
Abdallah Accary, Hicham Benniou, Yann Malecot, Matthieu Briffaut, Laurent Daudeville
Summary: This paper investigates the influence of saturation ratio on perforation and penetration of concrete by simulating the impact of ogive-nosed steel projectile on plain concrete targets surrounded by steel jackets.
COMPUTATIONAL PARTICLE MECHANICS
(2023)
Proceedings Paper
Mathematics, Applied
Andria Antoniou, Laurent Daudeville, Philippe Marin, Serguei Potapov
V INTERNATIONAL CONFERENCE ON PARTICLE-BASED METHODS - FUNDAMENTALS AND APPLICATIONS (PARTICLES 2017)
(2017)
Article
Engineering, Civil
F. Vieux-Champagne, Y. Sieffert, S. Grange, C. Belinga Nko'ol, E. Bertrand, J. C. Duccini, C. Faye, L. Daudeville
EARTHQUAKE SPECTRA
(2017)
Proceedings Paper
Construction & Building Technology
Yannick Sieffert, Florent Vieux-Champagne, Stephane Grange, Philippe Garnier, Jean-Charles Duccini, Laurent Daudeville
HISTORICAL EARTHQUAKE-RESISTANT TIMBER FRAMING IN THE MEDITERRANEAN AREA
(2016)