Walter Drugan Walter J. Drugan
Professor
University of Wisconsin
527 Engineering Research Building
1500 Engineering Drive
Madison, WI 53706
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Publications

Some Recent Publications

W. J. Drugan, "Elastic composite materials having a negative stiffness can be stable" Physical Review Letters 98, 055502, (2007). PDF

D. Bigoni and W. J. Drugan, "Analytical Derivation of Cosserat Moduli via Homogenization of Heterogeneous Elastic Materials" Journal of Applied Mechanics 74, in press (2007). PDF

K. Bertoldi, D. Bigoni and W. J. Drugan, "A Discrete-Fibers Model for Bridged Cracks and Reinforced Elliptical Voids," Journal of the Mechanics and Physics of Solids 55, 1016-1035 (2007). PDF

K. Bertoldi, D. Bigoni and W. J. Drugan, "Structural Interfaces in Linear Elasticity. Part I: Nonlocality and Gradient Approximations," Journal of the Mechanics and Physics of Solids 55, 1-34 (2007). PDF

K. Bertoldi, D. Bigoni and W. J. Drugan, "Structural Interfaces in Linear Elasticity. Part II: Effective Properties and Neutrality," Journal of the Mechanics and Physics of Solids 55, 35-63 (2007). PDF

G.A. Shaw, J.S. Trethewey, A.D. Johnson, W.J. Drugan and W.C. Crone, "Thermomechanical High-Density Data Storage in a Metallic Material via the Shape-Memory Effect," Advanced Materials 17, 1123-1127 (2005). PDF

K. Yoshimoto, M. P. Stoykovich, H. B. Cao, J. J. de Pablo, P. F. Nealy and W. J. Drugan, "A Two-Dimensional Model of the Deformation of Photoresist Structures Using Elastoplastic Polymer Properties," Journal of Applied Physics 96, 1857-1865 (2004). PDF

I. Monetto and W. J. Drugan, "A Micromechanics-Based Nonlocal Constitutive Equation for Elastic Composites Containing randomly oriented spheroidal Heterogeneities" Journal of the Mechanics and Physics of Solids 52, 359-393, (2004) PDF

W. A. Nakatani, W. J. Drugan, E. Van Der Giessen, A. Needleman, "Crack tip fields at a ductile single crystal rigid material interface," International Journal of Fracture 122, 131-159, (2003). PDF

W. J. Drugan, "Two Exact Micromechanics-Based Nonlocal Constitutive Equations for Random Linear Elastic Composite Materials," Journal of the Mechanics and Physics of Solids 51,1745-1772, (2003). PDF

R. S. Lakes and W. J. Drugan, "Dramatically Stiffer Elastic Composite Materials due to a Negative Stiffness Phase?," Journal of the Mechanics and Physics of Solids 50, 979-1009.(2002). PDF

W. J. Drugan, "Mechanics-Based Modeling of Dynamic Fragmentation and Comparison with Experiments," Proceedings of the 10th International Congress of Fracture (2001).

W. C. Crone and W. J. Drugan, "Comparison of Experiment and Theory for Crack Tip Fields in Ductile Single Crystals," Proceedings of the 10th International Congress of Fracture (2001).

W. J. Drugan, "Asymptotic Solutions for Tensile Crack Tip Fields Without Kink-Type Shear Bands in Elastic-Ideally Plastic Single Crystals," Journal of the Mechanics and Physics of Solids 49, 2155-2176 (2001). PDF

W. J. Drugan, "Dynamic Fragmentation in Brittle Materials: Analytical Mechanics-Based Models," Journal of the Mechanics and Physics of Solids 49, 1181-1208 (2001). PDF

W. J. Drugan, "Elastic-Plastic Crack Growth Along Ductile/Ductile Interfaces," in Multi-Scale Deformation and Fracture in Materials and Structures, The James R. Rice 60th Anniversary Volume, edited by T.-J. Chuang, Kluwer Academic Publishers, 243-274 (2001).

W. J. Drugan, "Micromechanics-Based Variational Estimates for a Higher-Order Nonlocal Constitutive Equation and Optimal Choice of Effective Moduli for Elastic Composites," Journal of the Mechanics and Physics of Solids 48, 1359-1387 (2000). PDF

W. J. Drugan, "Thermodynamic Analysis of Shock Waves in General Media; Applications to Elastic-Plastic Shock Waves and Ductile Crack Growth," in Material Instabilities in Elastic and Plastic Solids, edited by H. Petryk, Springer-Verlag Wein, New York, 53-108 (2000).

W. J. Drugan, "Limitations to Leading-Order Asymptotic Solutions for Elastic-Plastic Crack Growth," Journal of the Mechanics and Physics of Solids 46, 2361-2386 (1998). PDF

W. J. Drugan, "Thermodynamic Equivalence of Steady-State Shocks and Smooth Waves in General Media; Applications to Elastic-Plastic Shocks and Dynamic Fracture," Journal of the Mechanics and Physics of Solids 46, 313-336 (1998). PDF

W. J. Drugan and J. R. Willis, "A Micromechanics-Based Nonlocal Constitutive Equation and Estimates of Representative Volume Element Size for Elastic Composites," Journal of the Mechanics and Physics of Solids 44, 497-524 (1996). PDF

Y. Miao and W. J. Drugan, "Asymptotic Analysis of Growing Crack Stress/Deformation Fields in Porous Ductile Metals and Implications for Stable Crack Growth," International Journal of Fracture 72, 69-96 (1995).

R. M. Brannon, W. J. Drugan and Y. Shen, "Requirements of Thermodynamics in the Analysis of Elastic-Plastic Shock Waves," Journal of the Mechanics and Physics of Solids 43, 973-1001 (1995). PDF


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