Dr. Sachin Kumar

Assistant Professor
Department of Mechanical Engineering
sachin@iitrpr.ac.in

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Areas of Research

Numerical Methods: FEM, Extended-FEM, Isogeometric Analysis, Meshfree Methods
Fracture and Damage Mechanics, Composites, Soft Tissues

Education

Ph.D (Computational Mechanics, 2015): Indian Institute of Technology Roorkee
M.Tech (Applied Mechanics, 2010): Motilal Nehru National Institute of Technology Allahabad
B.Tech (Mechanical Engineering, 2008): Uttar Pradesh Technical University, Lucknow

Work Experience

Assistant Professor, Indian Institute of Technology Ropar, May 2017 - present
Assistant Professor, Indian Institute of Information Technology, Design and Manufacturing Jabalpur, Dec., 2016 - 14 May 2017
Research Fellow, National University of Singapore, Singapore, April, 2016 to Dec., 2016
Assistant Professor, BML Munjal University Gurgaon, June, 2015 - March, 2016

Selected Publications/Patents

International Journals:
Alok Negi, Sachin Kumar (2019), “Localizing gradient damage model with smoothed stress based anisotropic nonlocal interactions”, Engineering Fracture Mechanics, (Under Review).
Zhao Wang, Amit S. Shedbale, Sachin Kumar, Leong Hein Poh (2019), "Localizing gradient damage model with micro inertia effect for dynamic fracture", Computer Methods in Applied Mechanics and Engineering, (Review Requested).
Ram Naresh Yadav, Piyush Uniyal, Praveer Sihota, Sachin Kumar, Navin Kumar, Daisy Sahni, S.K. Bhadada (2019), “Investigate the effect of microstructure on crack propagation in human cortical bone”, Material Science and Engineering C, (Under Review).
Sachin Kumar, I. V Singh, B. K. Mishra, Kamal Sharma, I. A. Khan (2019), "A homogenized multigrid XFEM to predict the crack growth behavior of ductile materials in the presence of multiple defects", Engineering Fracture Mechanics, Vol. 205, pp. 577–602.
Sachin Kumar, Yihe Wang, Leong Hien Poh, Boyang Chen (2018), “Floating node method with domain-based interaction integral for generic 2D crack growths,", Theoretical and Applied Fracture Mechanics, Vol. 96, pp. 483–496.
Sachin Kumar, I. V Singh, B. K. Mishra (2015), "A Homogenized XFEM Approach to Simulate Fatigue Crack Growth Problems", Computers & Structures, Vol. 150, pp. 1–22
Sachin Kumar, G. Bhardwaj (2018), “A new enrichment scheme in XFEM to model crack growth behavior in ductile materials,", Theoretical and Applied Fracture Mechanics, Vol. 96, pp. 296–307.
J.G. Verma, Sachin Kumar, P. Kankar (2018), “Crack growth modeling in spur gear tooth and its effect on mesh stiffness using extended finite element method”, Engineering Failure Analysis, Vol. 94, pp. 109–120
Sachin Kumar, I. V Singh, B. K. Mishra, T. Rabczuk, (2015), "Modeling and Simulation of Kinked Cracks by Virtual Node XFEM", Computer Methods in Applied Mechanics and Engineering, Vol. 283, pp. 1425–146
Sachin Kumar, I. V Singh, B. K. Mishra, A. Singh (2015), "New Enrichments in XFEM to Model Dynamic Crack Response of 2-D Elastic Solids", International Journal of Impact Engineering, Vol. 87, pp. 198–211
Sachin Kumar, I. V Singh, B. K. Mishra (2014), "A Multigrid Coupled (FE-EFG) Approach to Simulate Fatigue Crack Growth in Heterogeneous Materials", Theoretical and Applied Fracture Mechanics, Vol. 72, pp. 121–135
Sachin Kumar, A. S. Shedbale, I. V Singh, B. K. Mishra (2015), "Elasto-Plastic Fatigue Crack Growth Simulations in the Presence of Flaws using XFEM", Frontiers of Structural and Civil Engineering, Vol. 9, pp. 420–440
Sachin Kumar, I. V Singh, B. K. Mishra (2014), "A Coupled Finite Element and Element-Free Galerkin Approach for the Simulation of Stable Crack Growth in Ductile Materials", Theoretical and Applied Fracture Mechanics, Vol. 70, pp. 49–58
Sachin Kumar, I. V Singh, B. K. Mishra (2014), "XFEM Simulation of Stable Crack Growth using J-R Curve under Finite Strain Plasticity", International Journal of Mechanics and Materials in Design, Vol. 10, pp. 165–177
I. V. Singh, B. K. Mishra, Sachin Kumar, A. S. Shedbale (2014), "Nonlinear Fatigue Crack Growth Analysis of a Center Crack Plate by XFEM", Advanced Materials Manufacturing & Characterization, Vol. 4, pp. 11–16
Sachin Kumar, I. V Singh, B. K. Mishra (2013), "Numerical Investigation of Stable Crack Growth in Ductile Materials using XFEM", Procedia Engineering, Vol. 64, pp. 652–660
International Conferences:
Alok Negi, Sachin Kumar, “A new localizing gradient damage model with evolving anisotropic nonlocal interactions” 10th International Conference on Computational Methods (ICCM 2019), July 9-13, 2019, Singapore. (Accepted)
Jay Govind Verma, P.K. Kankar, Sachin Kumar, “Crack propagation behavior in spur gear by xfem and its influence on dynamic characteristics”, 1st International and 4th National Conference On “Reliability and Safety Engineering (INCRS 2018)", February 26-28, 2018, PDPM IIITDM Jabalpur, India, Page 15, ISBN: 978-93-52916-14-6.
Sachin Kumar, I.V. Singh, B.K. Mishra, M. Dwivedy, “Interfacial Fatigue Crack Growth Analysis in Ductile Materials using XFEM, 60th Congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM 2015), December 16-19, MNIT, Jaipur, India
Jay Govind Verma, P.K. Kankar, Sachin Kumar, “Crack propagation behavior in spur gear by xfem and its influence on dynamic characteristics”, 1st International and 4th National Conference On “Reliability and Safety Engineering (INCRS 2018)", February 26-28, 2018, PDPM IIITDM Jabalpur, India, Page 15, ISBN: 978-93-52916-14-6.
Sachin Kumar, L.H. Poh, B.Y. Chen, "A floating node method for the crack growth analysis of brittle", 14th U.S. National Congress on Computational Mechanics (USNCCM-14), July 17-20, 2017, Montreal, Canada.
Margi Gajjar, Himanshu Pathak, Sachin Kumar, “A comparative study of linear elastic and elasto-plastic fracture modeling by XFEM, 9th International Conference of Materials Processing and Characterization (ICMPC-2019), March 8-10, 2019, Hyderabad.
Sachin Kumar, I.V. Singh, B.K. Mishra, “Fatigue crack growth simulations in ductile materials by coupled FE-EFGM”, International Conference on Mechanical and Aeronautical Engineering (ICMAE 2015), December 12–14, 2015, Singapore
Rajat Pratap, Sachin Kumar, I. V. Singh, B. K. Mishra, "Strain Energy Based Semi-homogenized XFEM Approach to Simulate Heterogeneous Problems", International Conference on Multifunctional Materials, Structures and Applications (ICMMSA-2014), pp. 123–126, December 22–24, 2014, MNNIT Allahabad, Uttar Pradesh, India
Sachin Kumar, I. V. Singh, B. K. Mishra, R. Cardoso, J. W. Yoon, "A Multigrid XFEM Approach for the Elasto-Plastic Simulation of Bi-material Interfacial Cracks”, Ist International on Structural Integrity (ICONS-2014), pp. 642–649, February 4–7, 2014, Kalpakkam, Chennai, India
Sachin Kumar, I. V. Singh, B. K. Mishra, "A Coupled Approach for the Simulation of Fatigue Crack Growth Problems", 58th congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM 2013), December 18–21, 2013 , BESU, Kolkata, India
Sachin Kumar, I. V. Singh, B. K. Mishra, "Ductile Crack Growth Simulations under Mode-I Loading using CTOA Criterion", Ist International and 16th National Conference on Machines and Mechanism (INACOMM-2013), pp. 217–223, December 18–20, 2013 IIT Roorkee, Roorkee, India
Sachin Kumar, I. V. Singh, B. K. Mishra, "A Coupled Meshfree-Finite Element Method for the Simulation of Large Deformation Problems", International Conference on Smart Technologies For Mechanical Engineering (STME-2013), October 25–26, 2013 DTU, Delhi, India
Sachin Kumar, I. V. Singh, B. K. Mishra, "XFEM Simulation of Stable Crack Growth using J-R Curve", 57th congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM 2012), pp. 169–175, December 18–21, 2012, DIAT, Pune, India

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