JOHN E. DOLBOW
Assistant Professor,
Department of Civil and Environmental Engineering

Contact Information
124 Hudson Hall
(PH) 919-660-5202
(FX) 919-660-5219
jdolbow@duke.edu

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Education

	PhD	An extended finite element method with discontinuous enrichment for applied mechanics, Theoretical and Applied Mechanics, Northwestern University, 1999
	MS	Numerical integration in the element free Galerkin method, Theoretical and Applied Mechanics, Northwestern University, 1998
	BS	Mechanical Engineering, University of New Hampshire, 1995

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Experience

	1999-present	Asst. Professor, Civil and Environmental Engineering, Duke University
	1998	Visiting Research Scientist, Los Alamos National Laboratory
	1995-1999	Research Assistant, Northwestern University

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Selected Publications

1. Dolbow, J. and M. Gosz, 1996. "Effect of out-of-plane Properties on the Stress Fields in Microelectronic Structures," Mechanics of Materials, 23, pp. 311-321.
2. Gosz, M., Dolbow, J. and B. Moran, 1998 “Domain Integral Formulation for Stress Intensity Factor Computation along curved Three-Dimensional Interface Cracks,” International Journal of Solids and Structures, 35, 1763-1783.
3. Dolbow, J. and T. Belytschko, 1999. "Numerical Integration of the Galerkin Weak Form in Meshfree Methods," Computational Mechanics, 23(3), pp. 219-230.
4. Moes, N., Dolbow, J. and T. Belytschko, 1999. “A Finite Element Method for Crack Growth Without Remeshing,” International Journal for Numerical Methods in Engineering, 46(1), 131-150.
5. Dolbow, J, Moes, N. and T. Belytschko, 2001. “An Extended Finite Element Method for Modeling Crack Growth with Frictional Contact,” Computer Methods in Applied Mechanics and Engineering, 190(51-52), 6825-6846.
6. Dolbow, J.E. and M. Gosz, 2002. “On the Computation of Mixed-Mode Stress Intensity Factors in Functionally Graded Materials,” International Journal of Solids and Structures, 39(9), 2557-2574.
7. Merle, R. and J. Dolbow, 2002. “Solving Thermal and Phase Change Problems with the Extended Finite Element Method,” Computational Mechanics, 28(5), 339-350.
8. Ji, H., Chopp, D. and J. E. Dolbow, 2002. “A Hybrid Extended Finite Element/ Level Set Method for Modeling Phase Transformations,” International Journal for Numerical Methods in Engineering, 54(8), pp. 1209-1233.
9. Dolbow, J. E. and J. C. Nadeau, 2002. “On the Use of Effective Properties for the Fracture Analysis of Microstructured Materials,” Engineering Fracture Mechanics, 69(14-16), 1607-1634.
10. Dolbow, J. E., Fried, E. and H. Ji, 2003. “Chemically Induced Swelling of Hydrogels,” Journal of the Mechanics and Physics of Solids, accepted for publication.
    
    

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Short Research Interest Description

Developing advanced computational strategies for simulating the multi-scale processes in the kinetic actuation of stimulus-responsive hydrogels.

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Research Interest

My research is focused on the development of innovative numerical methods for the simulation of evolving discontinuities and interfaces, motivated by a number of emerging applications in engineering mandating simulations that are free of numerical "artifacts". An example concerns the interfaces that arise between synthetic hydrogels and their surrounding fluid in microfluidic actuation devices. The flow fields in the vicinity of the gels affects the solute flux across a thin, nanoporous membrane, which in turn influences their response time. I am presently developing hybrid finite element/finite difference to simulate the motion of this interface, as well as the ripple instability observed on hydrogel surfaces during rapid swelling.

Other problems of interest concern the failure of materials systems in extreme loading conditions. One of my present projects is a collaborative effort between Duke, Notre Dame, and Alcoa to understand the thermomechanical processes in the high-speed machining of aluminum alloys. We are developing arbitrary Lagrangian-Eulerian (ALE) methods to represent the free-surface formation at the tool/chip interface, the onset of chip segmentation, and the residual stress in the workpiece.

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