Dr. Jithender Jaswant Timothy
Ruhr University Bochum
Institute for Structural Mechanics
IC / 6 / 177
Universitätsstraße 150
44801 Bochum

Email: timothy.jithenderjaswant@rub.de
Tel: 0234 / 32-29070

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Kurzer Lebenslauf (wichtigste Stationen)


Seit 2019
Gruppenleiter, Arbeitsgruppe: Skalenübergreifende Modellierung von Materialien & Strukturen, Lehrstuhl für Statik & Dynamik, Fakultät for Bauingenieurwesen, Ruhr Universität Bochum, Deutschland

Seit 2018
Science Manager, Research Department: Subsurface Modeling and Engineering, Ruhr Universität Bochum, Deutschland

2013-2016
Promotion (mit Auszeichnung), Bauingenieruwesen /Computational Engineering, Ruhr-Universität Bochum, Deutschland

2007-2009
Master, Computational Engineering, Ruhr-Universität Bochum, Deutschland

2002-2006
Bachelor (first-class), Maschinenbau, Anna University, Chennai, Indien


Forschungsgebiet / Arbeitsbereich


Modellbasierte Charakterisierung und Design von Materialien und Strukturen unter Berücksichtigung von Eigenschaften, Prozessen und Mechanismen auf verschiedenen Längen- und Zeitskalen. Zu diesem Zweck werden neuartige mathematische Modelle, skalenübergreifende Methoden und numerische Algorithmen entwickelt und eingesetzt.


Lectures


  • Finite Element Methods in Linear Structural Dynamics
  • Finite-Elemente-Methoden in der linearen Strukturdynamik


Publications


Scientific Publications in Refereed Journals

[ 1 ] G. Vu, T. Iskhakov, J.J. Timothy, and G. Meschke
Multiscale modeling of distributed microcracking in concrete
Proceedings in Applied Mathematics and Mechanics, 2020
[ 2 ] J.J. Timothy, V.Holla, and G. Meschke
Covid-19:multiscale dynamics of disease spreading andmodel-based recommendations for 105 countries
MedRxiv, 2020
[ 3 ] J.J. Timothy, V. Holla, and G. Meschke
Multiscale modeling of retinal hypoxia due to age-related macular degeneration
Proceedings in Applied Mathematics and Mechanics, 2020
submitted
[ 4 ] Tagir Iskhakov, Jithender J. Timothy, Miguel Bessa, and Günther Meschke
Reduced order voxel-based model for computational modelling of highly compressible composite materials
Proceedings in Applied Mathematics and Mechanics, 2020
submitted
[ 5 ] V. Holla, J.J. Timothy, and G. Meschke
Computational analysis of the influence of drusen growth on the morphology of rpe due to age-related macular degeneration
Proceedings in Applied Mathematics and Mechanics, 2020
submitted
[ 6 ] N. Schäfer, V. Gudzulic, J.J. Timothy, R. Breitenbücher, and G. Meschke
Fatigue behavior of HPC and FRC under cyclic tensile loading: Experiments and modeling
Structural Concrete, 20:1265--1278, 2019
DOI ]
[ 7 ] T. Iskhakov, J.J. Timothy, and G Meschke
Expansion and deterioration of concrete due to ASR: Micromechanical modeling and analysis
Cement and Concrete Research, 115:507--518, 2019
DOI | http ]
[ 8 ] J.J. Timothy and G. Meschke
Effective diffusivity of porous materials with microcracks - self-similar mean-field homogenization and pixel finite element simulations
Transport in Porous Media, 125:413--434, 2018
DOI | http ]
[ 9 ] T. Iskhakov, J.J. Timothy, and G. Meschke
Multiscale modelling of alkali transport and ASR in concrete structures
Proceedings in Applied Mathematics and Mechanics (PAMM), 1, 2018
DOI | http ]
[ 10 ] V. Gudzulic, I. Khisamitov, J.J. Timothy, and G. Meschke
Simulation-based investigation of the influence of the micro-structure and disorder on damage evolution in concrete
Proceedings in Applied Mathematics and Mechanics (PAMM), 2018
DOI ]
[ 11 ] J. J. Timothy, T. Iskhakov, Y. Zhan, and G. Meschke
A multiscale model for high-performance FRC
In V. Mechtcherine, V. Slowik, and P. Kabele, editors, Strain-Hardening Cement-Based Composites, volume 15 of RILEM Bookseries, pages 97--105. Springer, september 2017
DOI ]
[ 12 ] J. J. Timothy and G. Meschke
The intrinsic permeability of microcracks in porous solids: Analytical models and lattice boltzmann simulations
International Journal for Numerical and Analytical Methods in Geomechanics, 41(8):1138--1154, 2017
DOI | http ]
[ 13 ] J.J. Timothy and G. Meschke
Cascade continuum micromechanics model for the effective permeability of solids with distributed microcracks: Self-similar mean-field homogenization and image analysis
Mechanics of Materials, 104:60--72, 2017
DOI ]
[ 14 ] R. Przondziono, J. J. Timothy, F. Weise, E. Krütt, R. Breitenbücher, G. Meschke, and M. Hofmann
Degradation in concrete structures due to cyclic loading and its effect on transport processes
Structural Concrete, 18(4):519--527, 2017
DOI ]
[ 15 ] D. Leonhart, J.J. Timothy, and G. Meschke
Cascade continuum micromechanics model for the effective permeability of solids with distributed microcracks. Comparison with numerical homogenization
Mechanics of Materials, 115:64--75, 2017
DOI ]
[ 16 ] S. Butt, J.J. Timothy, and G. Meschke
Wave dispersion and propagation in state-based peridynamics
Computational Mechanics, 60(5):725--738, 2017
DOI | http ]
[ 17 ] J. J. Timothy, Y. Zhan, and G. Meschke
A micromechanics model for FRC composites
PAMM, 16(1):543--544, 2016
DOI ]
[ 18 ] J. J. Timothy and G. Meschke
Modeling the effective permeability of microcracked materials using continuum and lattice micromechanics
PAMM, 16(1):555--556, 2016
DOI ]
[ 19 ] J. J. Timothy and G. Meschke
Cascade lattice micromechanics model for the effective permeability of materials with microcracks
Journal of Nanomechanics and Micromechanics (ASCE), 6(4):04016009, 2016
DOI ]
[ 20 ] J. J. Timothy and G. Meschke
A cascade continuum micromechanics model for the elastic properties of porous materials
International Journal of Solids and Structures, 83:1--12, 2016
DOI ]
[ 21 ] J. J. Timothy and G. Meschke
A micromechanics model for molecular diffusion in materials with complex pore structure
International Journal for Numerical and Analytical Methods in Geomechanics, 40(5):686--712, 2016
DOI ]
[ 22 ] J.J Timothy and G. Meschke
Cascade continuum micromechanics model for the effective diffusivity of porous materials: Exponential hierarchy across cascade levels
Proceedings in Applied Mathematics and Mechanics, 15(1):471--472, 2015
DOI ]
[ 23 ] R. Przondziono, J.J. Timothy, M. Nguyen, F. Weise, R. Breitenbücher, G. Meschke, and B. Meng
Vorschädigung in Beton infolge zyklische Beanspruchungen und deren Auswirkungen auf Transportprozesse im Hinblick auf eine schädigende AKR
Beton- und Stahlbetonabu, 110(1):3--12, 2015
DOI ]
[ 24 ] J. J. Timothy and G. Meschke
Micromechanics model for tortuosity and homogenized diffusion properties of porous materials with distributed micro-cracks
Proceedings in Applied Mathematics and Mechanics (PAMM), 11(1):555--556, December 2011
DOI ]
[ 25 ] G. Meschke, D. Leonhart, J. J. Timothy, and M.-M. Zhou
Computational mechanics of multiphase problems - modeling strategies at different scales
Computer Assisted Mechanics and Engineering Sciences, 18:73--89, 2011
Invited paper for Special Issue
[ 26 ] J.J. Timothy, J. Kruschwitz, and G. Meschke
Determination of homogenized diffusion properties in micro-cracked porous materials
Proceedings in Applied Mathematics and Mechanics, 10(1):429--430, 2010
DOI | http ]

Scientific Publications in Conference Proceedings

[ 27 ] T. Iskhakov, J.J. Timothy, and G. Meschke
Multiscale modeling of ion transport and ASR induced damage in concrete structures
In G. Pijaudier-Cabot, P. Grassl, and C. La Borderie, editors, 10th International Conference on Fracture Mechanics of Concrete and Concrete Structures (FramCoS-X), pages 1--7, Bayonne, France, June 2019
DOI ]
[ 28 ] J. Reinold, J.J. Timothy, and G. Meschke
Particle finite element simulation for additive manufacturing processes of fresh concrete
In Proceedings of the 8th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry, Kassel, Germany, 2019
[ 29 ] T. Iskhakov, J.J. Timothy, and G. Meschke
Mehrskalenmodellierung von akr-induzierter schädigung in betonbauteilen
In H.-M. Ludwig, editor, Tagungsbericht 20. Internationale Baustofftagung ibausil, volume 2, pages 77 -- 84. F. A. Finger-Institut für Baustoffkunde, September 2018
[ 30 ] T. Iskhakov, J.J. Timothy, and G. Meschke
Multiscale modelling of alkali transport and ASR induced damage in concrete
In E. Schlangen, G. de Schutter, B. Šavija, H. Zhang, and C. R
Rodriguez, editors, Proceedings of the Symposium on Concrete Modelling - CONMOD2018, volume 1, pages 449--452. RILEM Publications S.A.R.L., August 2018
[ 31 ] T. Iskhakov, J.J. Timothy, and G. Meschke
Multiscale modelling of ASR induced degradation in concrete
In G. Meschke, B. Pichler, and J. Rots, editors, Computational Modelling of Concrete Structures (EURO-C 2018), pages 345--352. CRC Press, March 2018
[ 32 ] T. Iskhakov, J.J. Timothy, and G. Meschke
Multiscale model of ASR-induced damage in concrete
In 7th GACM Colloquium on Computational Mechanics, pages 454--457. Institute for Structural Mechanics, University of Stuttgart, October 2017
[ 33 ] J. J. Timothy, T. Iskhakov, and G. Meschke
Transport properties of microcracked porous materials: Micromechanics models and mesoscale simulations
In Proceedings of the 7th GACM Colloquium on Computational Mechanics, 2017
[ 34 ] G. Meschke and J. Timothy
Numerische Mehrskalen- und Mehrphasenmodelle für beton unter berücksichtigung von Vorschädigung
In Beton - Herausforderungen in Forschung und Praxis, pages 306--317, 2017
Festschrift zum 60. Geburtstag von R. Breitenbücher
[ 35 ] G. Meschke, J.J. Timothy, M.N. Nguyen, and M. Hofmann
AKR unter kombinierten Einwirkungen - Numerische Modellierung
In A. Ludwig, editor, 19. Int. Baustofftagung (IBAUSIL 2015), pages 1/1473 -- 1/1483. Finger Institut Weimar, 2015
[ 36 ] D. Leonhart, J.J. Timothy, and G. Meschke
Determination of effective transport properties of fractured rocks using the Extended Finite Element Method and micromechanics
In W. Schubert, editor, EUROCK 2015 & 64th Geomechanics Colloquium. Österreichische Gesellschaft für Geomechanik, 2015
[ 37 ] J.J. Timothy and G. Meschke
A continuum micromechanics-lefm model for fiber reinforced concrete
In G. Meschke N. Bićanić, H. Mang and R. de Borst, editors, Computational Modelling of Concrete Structures (EURO-C 2014), pages 327--332. CRC Press/Balkema, NL, 2014
[ 38 ] M.N. Nguyen, J.J. Timothy, S. Beckhuis, and G. Meschke
Hydraulic effects of fracture in brittle porous materials
PAMM, 14(1):135--136, 2014
DOI | http ]
[ 39 ] M. N. Nguyen, J. J. Timothy, and G. Meschke
Numerical analysis of multiple ion species diffusion and alkali-silica reaction in concrete,
In N. Bicanic, H. Mang, G. Meschke, and R. de Borst, editors, Computational Modelling of Concrete and Concrete Structures (EURO-C 2014), pages 789--796. CRC Press/Balkema, 2014
[ 40 ] J. J. Timothy and G. Meschke
Diffusion in fracturing porous materials: Characterizing topological effects using cascade micromechanics and phase-field models
In Poromechanics V (ASCE), pages 2250--2259, 2013
DOI ]
[ 41 ] J. J. Timothy and G. Meschke
Modeling electrolyte diffusion in cracked cementitious materials using cascade continuum micromechanics and phase-field models
In Fracture Mechanics of Concrete Structures (Framcos 2013), 2013
[ 42 ] G. Meschke and J. J. Timothy
Multiscale modeling of electrolyte diffusion in fracturing materials
In J. Eberhardsteiner, H.J Böhm, and F. Rammerstorfer, editors, CD-ROM Proceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012). Vienna University of Technology, 2012
ISBN: 978-3-9502481-9-7
[ 43 ] M. Kemper, J. J. Timothy, J. Kruschwitz, and G. Meschke
Modeling of chloride and CO2 transport in intact and cracked concrete in the context of corrosion predictions of rc structures
In N. Bicanic, R. de Borst, H.A. Mang, and G. Meschke, editors, Computational Modeling of Concrete Structures. (Proceedings of EURO-C 2010), pages 503--512, Rohrmoos/Schladming, Austria, 2010. CRC Press, Taylor and Francis Group