Yu Liu website Main Page

Ph.D Candidate Major: Civil Engineering Advisor: Zhanping You

Phone number: 906-3709327 Email: yul@mtu.edu Webblog address: Webblog

YU LIU （刘玉）

Current Research

· viscoelastic mechanical models and the corresponding parameters

· evaluation of rutting and fatigue properties of asphalt materials

· simulation of asphalt materials with discrete element method

· pavement design using MEPDG

Michigan Tech. University Civil & Environmental Engineering

Previous Research

· discrete element method and its Visual C++ programming

· Micromechanical analysis of asphalt mixtures with discrete element method for my master degree

· Virtual tests to predict stiffness of asphalt mixtures: modeling DSR tests of asphalt mastics , triaxial tests of graded aggregates, uniaxial compressive tests of asphalt mixtures etc.

· Concrete structure and foundation design, geotechnical mechanical behavior analysis with laboratory tests.

· My master dissertation

Publications

Liu, Y., and You, Z. (2008). "Determining Burger’s Model Parameters of Asphalt Materials using Creep-recovery Data. ”ASCE Geotechnical Special Publication “Pavement Mechanics and Paving Materials” series.

Liu, Y., You, Z., and Adhikari, S. (2008). "Speed up Discrete Element Simulation of Asphalt Mixtures with User-written C++ Codes." ASCE Airfield and Highway Pavement Conference

Liu., Y., and You, Z. (2008). Visualization and Simulation of Asphalt Concrete: a Randomly Generated 3D Model [J], Journal of Computing in Civil Engineering (Special Issue on Visualization))

Liu., Y., and You., Z. (2008). A Viscoelastic Model for Discrete Element Simulation of Asphalt Mixtures [J], Journal Engineering Mechanics

Liu., Y., and You., Z. (2008). "Simulation of Cyclic Loading Tests for Asphalt Mixtures using User Defined Models within Discrete Element Method." GeoCongress 2008, Sheraton New Orleans, New Orleans, Louisiana, USA

Feng, S., Hu, X., and Liu, Y. (2008a). " Numerial Analysis of Asphalt Mastics Based on Burger's Model with Discrete Element Method." Jornal of Pavment Base Engeering(1).

Feng, S., Hu, X., and Liu, Y. (2008b). "Numerical Analysis of Viscoelastic Materials Based on Discrete Element Method " Journal of Highway and Transportation Research and Development(3)

Liu., Y., Feng., S., and Hu., X.-g. (2007). "Discrete Element Simulation of Asphalt Mastics Based on Burgers Model." Journal of Southwest Jiaotong University, 15(1), 20-26. Link Full PDF

Tian., L., Liu., Y., and Hu., X.-g. (2007a). "Random Generation Algorithm for Simulation of Polyhedral Particles in Asphalt Mixture Aggregate and Its Program." China Journal of Highway And Transport, 20(03), 5-10.

Tian., L., Liu., Y., and Wang., B.-g. (2007b). "3D DEM model and digital restructure technique for asphalt mixture simulation." Journal of Chang’ an University(Natural Science Edition), 27(4), 23-26. Link (Full PDF)

Hu. X; Feng. S; Liu.Y; Tian. L (2007) ,”3-D Distinct Element Modeling for Viscoelastic Asphalt Mastics” Transportation Research Board 86th Annual Meeting Paper #07-3015. Link

Tian., L, Hu. X; Liu., Y., (2007) Sha,A, “Sectioned linear fitting method of parameters for asphalt mastics viscoelastic Burgers model” Journal of Traffic and Transportation Engineering, 7(3), 66-69 Link (Full PDF)

Xiao. Z, Hu. X, Liu. Y, (2007) “Discrete Element Method Analysis for Micro Structure of Asphalt Mixtures”, Highway, v4 in 2007. Link

Hu. X, Liu., Y., Tian., L, (2005) “Numerical simulation of strength and deformation properties of grade crushed stones based on 3-D DEM” 2005 National Highway Technical Forum for Youths 11-11- 2005

GUAN. J, TIAN. L, Liu. Y, (2005) “Discrete Element Method and its Application in Asphalt Mixture”, 2005 National Highway Technical Forum for Youths. 11-11-2005

You. Z, Adhikari. S, Liu. Y, (2008) A Microstructure-Based Modeling Approach to Analyze Asphalt Pavement Material, NSF CMMI Engineering Research and I/nnovation Conference 2008 January 7-10 2008, Knoxville, TV

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Interesting Researches Exhibition

Research Group

yuuy

Zhanping You: Assistant Professor, Transportation Engineering and Materials, Donald and Rose Ann Tomasini Assistant Professor of Transportation Engineering; Ph.D., University of Illinois at Urbana-Champaign (UIUC), 2003
Mr. S. Adhikari: Micromechanical modeling for asphalt mixture, simple performance tests for asphalt mixture, dynamic modulus prediction, and modeling of material tests. Attended the NCAT Professor Training on asphalt and pavement technology June 2006.

Mr. J. Mills-beale: simple performance tests for asphalt mixture. Attended the NCAT Professor Training on asphalt and pavement technology June 2007.

Mr. Baron W Colbert : nondestructive testing for asphalt mixtures and pavements, aggregate wearing study. Attended the NCAT Professor Training on asphalt and pavement technology June 2007. UTC- Materials in Sustainable Transportation Infrastructure scholar in summer 2007. 2007 Eisenhower Graduate Fellowship recipient.

Mr. S. W. Goh: simple performance test, warm mix asphalt tests. Attended the NCAT Professor Training on asphalt and pavement technology June 2007. UTC- Materials in Sustainable Transportation Infrastructure scholar in summer 2007.

Useful Research Links

Link 1: ASCE (America Society of Civil Engineering) Library

Link 2: TRB (Transportation Research Board) TRB-web-1

Link 3: TRIS Online (Transportation Research Information Service)

Link 4: MEPDG (Mechanistic-Empirical Pavement Design Gide)

Link5: ITSCA web-1 (PFC company website)

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Link7: Journals

Link8: Civil Engineer Link-1

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