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Publications

2012 -2011 -2010 - 2009 - 2008 - 2007 - 2006 - 2005 - 2004 - 2003 - 2002 - 2001 - 2000 - 1999 - 1998 - 1997 - 1996 - 1995 - 1994 - 1993 - 1992 - 1991 - 1990 - 1989 and earlier

2012 Publications

86. M. Liao and R. Ballarini, " A Fracture Mechanics-Based Design Approach for Unbonded Concrete Overlay Pavements," submitted to ASCE Journal of Engineering Mechanics.

85. R. Piccinin, R. Ballarini and S. Cattaneo, "Pullout Capacity of Headed Anchors in Prestressed Concrete," to appear in ASCE Journal of Engineering Mechanics.

84. L.M. Hale, D.B. Zhang, X. Zhou, J.M. Zimmerman, N.R. Moody, T. Dumitrica, R. Ballarini and W.W. Gerberich, "Dislocation Morphology and Nucleation within Compressed Si Nanospheres: A Molecular Dynamics Study," Computational Materials Science, Vol. 54, pp. 280-286, 2012.

2011 Publications

83. L.M. Hale, X. Zhou, J.A. Zimmerman, N.R. Moody, R. Ballarini and W.W. Gerberich, "Phase Transformations, Dislocations and Hardening Behavior in Uniaxially Compressed Silicone Nanospheres," Computational Materials Science, Vol. 50, Issue 5, pp. 1651-1660, 2011.

82. R. Ballarini, S. Jost and M. Liao, "Distributed Damage Creates Flaw Tolerance," Engineering Fracture Mechanics, Vol. 78, Issue 9, pp. 2004-2009, 2011.

81. Y. Ganesan, C. Peng, Y. Lu, P.E. Loya, P. Moloney, E. Barrera, B. I. Yakobson, J.M. Tour, R. Ballarini and J. Lou, "Interface Toughness of Multi-wall Carbon Nanotube Reinforced Epoxy Composites," ACS Applied Materials and Interfaces, Vol. 3, Issue 2, pp. 129-134, 2011.

80. Z.L. Shen, H. Kahn, R. Ballarini and S.J. Eppell, “Viscoelastic Properties of Isolated Collagen Fibrils," Biophysical Journal, Vol. 100, pp. 3008-3014, June 2011.

79. Y. Tang and R. Ballarini, “Corrosion Mechanisms in Electrostrictive Thin Films,”Journal of the Mechanics and Physics of Solids, Vol. 59, Issue 2, pp. 178-193, 2011 (published first online doi: 10.1016/j.jmps.2010.11.002).

78. A.R. Beaber, J.D. Nowak, O. Ugurlu, W. M. Mook, S.L. Girshick, R. Ballarini and W.W. Gerberich, “Smaller is Tougher,” Philosophical Magazine, Vol. 91, Issue 7-9, pp. 1179-1189, 2011 (first published June 25, 2010 (iFirst), doi:10.1080/14786435.2010.487474).

77. R. Ballarini and P. Villaggio, “Elastic Stress Diffusion Around a Thin Corrugated Inclusion,” IMA Journal of Applied Mathematics, Vol. 76, Issue 4, pp. 633-641, 2011 (advanced access published January 7, 2011, pp. 1-9, doi:10.1093/imamat/hqx070).

2010 Publications

76. M. Liao, T. Okazaki, R. Ballarini, A. Schultz, T. Galambos, “Nonlinear Finite Element Analysis of Critical Gusset Plates in the I-35W Bridge in Minnesota,” ASCE Journal of Structural Engineering, Vol. 137, Issue 1, pp. 59-68, 2011. (posted ahead of print July 15, 2010 doi:10.1061/(ASCE)ST.1943-541X.0000269).

75. T. Anderson, E. Akatyeva, I. Nikiforov, D. Potyondy, R. Ballarini and T. Dumitrica, "Toward Distinct Element Simulation of Carbon Nanotube Systems," ASME Journal of Nanotechnology in Engineering and Medicine, Vol. 1, 041009, 2010.

74. Z.L. Shen, M.R. Hodge, H. Kahn, R. Ballarini and S.J. Eppell, "In-Vitro Fracture Testing of Submicron Diameter Collagen Fibrils Under Uniaxial Testing," Biophysical Journal, Vol. 99, 1986-1995, 2010.

73. H. Khan, R. Ballarini and A.H. Heuer, "Using Microfabricated Devices to Determine the Fracture Strength of Materials," International Journal of Materials Research, Vol. 101, No. 1, pp. 102-105, 2010.

72. R. Piccinin and R. Ballarini, “Linear Elastic Fracture Mechanics Pullout Analyses of Headed Anchors in Stressed Concrete,” ASCE Journal of Engineering Mechanics, Vol. 136, No. 5, pp. 761-768, 2010.

71. Y. Ganesan, Y. Lu, C. Peng, H. Lu, R. Ballarini and J. Lou, “Development and Application of a Novel Micro-fabricated Device for In Situ Tensile Testing of 1-D Nanomaterials,” Journal of Microelectromechanical Systems, Vol. 19, No. 3, pp. 675-682, 2010.

2009 Publications

70. L.M. Hale, X.W. Zhou, J.A. Zimmerman, N.R. Moody, R. Ballarini and W.W. Gerberich, “Molecular Dynamics Simulation of Delamination of a Stiff, Body-Centered-Cubic Crystalline Film from a Compliant Si Substrate,” Journal of Applied Physics, Vol. 6, No. 8, 083503-083503-7, Oct. 2009.

69. Y. Tang, R. Ballarini, M.J. Buehler and S.J. Eppell, “Deformation Micromechanisms of Collagen Fibrils Under Uniaxial Tension,” Journal of the Royal Society Interface, Vol. 7, pp. 839-850, 2010 (published first online November 6, 2009, doi: 10.1098/rsif.2009.0390).

68. S. Mogilevskaya, H. Stolarski, R. Ballarini and S. Crouch, "Interaction Between a Crack and an Inhomogeneity with Surface Elsaticity and Surface Tension," International Journal of Fracture, Vol.159, 2009, 191-207.

67. F. Ostlund, K. Rzepiejewska-Malyska, K. Leifer, L.M. Hale, Y. Tang, R. Ballarini,, W.W. Gerberich and J. Michler, "Brittle-to-Ductile Transition in Uniaxial Compression of Silicon Pillars at Room Temperature," Advanced Functional Materials, Vol. 19, 2009, 2439-2444S.

66. W. Gerberich, J. Michler, W.M. Mook, R. Ghisleni, F. Ostlund, D.D. Stauffer and R. Ballarini, "Scale Effects for Strength, Ductility and Toughness in ‘Brittle Materials’," Journal of Materials Research, Vol. 24, No. 3, March 2009.

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2008 Publications

65. B.L. Boyce, R. Ballarini and I. Chasiotis, "An Argument for Proof-Testing Brittle Microsystems in High-Reliability Applications," Journal of Micromechanics and Microengineering, Vol. 18, 2008 117001 (4pp), doi:10.1088/0960-1317/18/11/117001.

64. Z.L. Shen, M.R. Dodge, H. Kahn, R.Ballarini and S.J. Eppell, "Stress-strain Experiments on Individual Collagen Fibrils," Biophysical Journal, Vol. 95, 2008, 3956-3963.

63. H. Kahn, A. Avishai, R. Ballarini and A.H. Heuer, "Surface oxide effects on failure of polysilicon MEMS after cyclic and monotonic loading," Scripta Materialia, Vol. 59, Issue 9, 2008, 912-915. scripta

62. Y. Wang and R. Ballarini, "Crack-tip Parameters in Polycrystalline Plates with Soft Grain Boundaries," ASCE Journal of Engineering Mechanics, Vol. 134, No. 1, 100-109, 2008.

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2007 Publications

61. W.W. Gerberich, W.M. Mook, J.Deneen Nowak, C.B. Carter and R. Ballarini, "A Crack Extension Force Correlation for Hard Materials," International Journal of Fracture, Vol. 148, 109-114, 2007.

60. R. Khare, S.L. Mielke, J.T. Paci, S. Zhang, R. Ballarini, G.C. Schatz and T. Belytschko, "Coupled Quantum Mechanical/Molecular Mechanical Modeling of the Fracture of Defective Carbon Nanotubes and Graphene Sheets," Physical Review B 75, 1 2007.

59. L. Chen, R. Ballarini, H. Kahn and A.H. Heuer, "A Bioinspired Micro-Composite Structure," Journal of Materials Research, Vol. 22, No. 1, 124-131, 2007.

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2006 Publications

58. R. Ballarini and P. Villaggio, "Frobenius’ Method for Curved Cracks," International Journal of Fracture, Vol. 139, pp. 59-69, 2006.

57. V. Hatty, H. Kahn, J. Trevino, M. Mehregany, C.A. Zorman, R. Ballarini, A,H, Heuer, "Fracture Toughness of LPCVD Polycrystalline Silicon Carbide Thin Films," Journal of Applied Physics, Vol. 99, 013517, 2006.

55. H. Kahn, R. Ballarini and A.H. Heuer, "Mechanical Fatigue of Polysilicon: Effects of Mean Stress and Stress Amplitude," Acta Materialia, Vol. 54, pp. 667-678, 2006.

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2005 Publications

56. S. Eppell, B. Smith, H. Kahn and R. Ballarini, "Nano Measurements With Micro Devices: Mechanical Properties of Hydrated Collagen Fibrils," Journal of the Royal Society Interface, doi: 10.1098/rsif.2005.0100.

54. R. Ballarini, R. Kayacan, F.J. Ulm and A.H. Heuer, "Biological Structures Mitigate Catastrophic Failure Through Various Strategies," International Journal of Fracture, Vol. 135, pp. 187-197, 2005.

53. J.J. Bellante, H. Kahn, R. Ballarini, C.A. Zorman, M. Mehregany and A.H. Heuer, "Fracture Toughness of Polycrystalline Silicon Carbide Thin Films," Applied Physics Letters, Vol. 86, Article 071920, 2005.

52. Y. Wang, R. Ballarini, H. Kahn and A.H. Heuer, "Determination of the Growth Strain of LPCVD Polysilicon," Journal of Microelectromechanical Systems, Vol. 14, No. 1, pp. 160-166, 2005.

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2004 Publications

51. Y. Wang and R. Ballarini, "A Long Crack Penetrating a Transforming Inhomogeneity," Journal of Applied Mechanics, Vol. 71, pp. 582-585, 2004.

50. R. Ballarini, L. Chen and M. Grigoriu, "Crack Propagation in a Material with Random Toughness," International Journal of Fracture, Vol 125, pp. 353-369, 2004.

49. S. Kamat, H. Kessler, R. Ballarini, A.H. Heuer, "Fracture mechanisms of the Strombus gigas conch shell: II Micromechanics analyses of multiple cracking and large scale crack bridging," Acta Materialia, Vol. 52, pp. 2395-2406, 2004.

48. H. Kahn, R. Ballarini and A.H. Heuer, "Dynamic Fatigue of Silicon," Current Opinion in Solid State and Materials Science, Vol. 8, pp. 71-76, 2004.

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2003 Publications

47. A. Ni, D. Sherman, R. Ballarini, H. Kahn, B. Mi, S.M. Phillips and A.H. Heuer, "Optimal Design of Multilayered Polysilicon Films for Prescribed Curvature," Journal of Materials Science, Vol. 38 (special issue Mechanical Properties of MEMS Structures), pp. 4169-4173, 2003.

46. Y. Wang and R. Ballarini, "A Long Crack Penetrating a Circular Inhomogeneity," Meccanica (special issue in honor of Professor Piero Villaggio), Vol. 38, pp. 579-593, 2003.

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2002 Publications

45. H. Kahn, R. Ballarini, J. Bellante and A.H. Heuer, "Fatigue Failure in Polysilicon Not Due to Simple Stress Corrosion," Science, Vol. 298, pp. 1215-1219, Nov. 8, 2002.

44. H. Kahn, R. Ballarini and A.H. Heuer, "Thermal Expansion of LPCVD Polysilicon," Journal of Materials Research, Vol. 17, No. 7, pp. 1855-1862, 2002.

43. Z.P. Bazant, Y.D.S. Rajapakse, D.H. Allen, R. Ballarini, H.D. Espinosa, H. Gao, R. Gettu, M. Jirasek, G. Pijaudier-Cabot, J. Planas and F.J. Ulm, "Report on ONR Workshop on Fracture Scaling," International Journal of Fracture, Vol. 113, pp. 345-366, 2002.

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2001 Publications

42. R. Ballarini, H. Kahn, N. Tayebi and A.H. Heuer, "Effects of Microstructure on the Strength and Fracture Toughness of Polysilicon: A Wafer Level Testing Approach,” Mechanical Properties of Structural Films," ASTM STP 1413, American Society for Testing and Materials, pp. 37- 51, 2001.

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2000 Publications

41. S. Kamat, X. Su, R. Ballarini and A.H. Heuer, "Structural Basis for the Fracture Toughness of the Shell of the Conch Strombus Gigas," Nature, Vol. 405, June 29, pp. 1036-1040, 2000.

40. L. Brandinelli and R. Ballarini, "Stress Intensity Factor Approximations for Two Dimensional Curvilinear Cracks," Composites Science and Technology, Special Issue Dedicated to the 65th Anniversary of Dr. Nicholas Pagano, Vol. 82, pp. 274-280, 2000.

39. H. Kahn, N. Tayebi, R. Ballarini, R.L. Mullen and A.H. Heuer, "FractureToughness of Polysilicon MEMS Devices," Sensors and Actuators, (Transducers ’99 Special Volume), Vol. 82, pp. 272-280, 2000.

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1999 Publications

38. H. Kahn, R. Ballarini, R.L. Mullen and A.H. Heuer, "Electrostatically Actuated Failure of Microfabricated Polysilicon Fracture Mechanics Specimens," Proceedings of the Royal Society of London, A455, pp. 3807-3823, 1999.

37. A. Vogel and R. Ballarini, "Formulas for Load Capacities of Headed Anchors," ASCE Journal of Engineering Mechanics, Vol. 125, No. 11, pp. 1276-1279, 1999.

36. R. Ballarini, R.L. Mullen and A.H.Heuer, "The Effects of Heterogeneity and Anisotropy on the Size Effect in Cracked Polycrystalline Films," International Journal of Fracture, Special Issue Fracture Scaling, Vol. 95, No. 1-4, pp. 19-39, 1999.

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1997 Publications

35. R. Kayacan, R. Ballarini and R.L. Mullen, "The Effects of Tooth and Implant Mobility on Occlusal Force Transmission in Tooth/Implant Supported Prostheses," The Journal of Prosthetic Dentistry, Vol. 78, No. 4, pp. 391-399, October 1997.

34. R.L. Mullen, R. Ballarini and Y.Yin, "Monte-Carlo Simulation of Effective Elastic Constants of Polycrystalline Thin Films," Acta Metallurgica et Materialia, Vol. 45, No. 6, pp. 2247-2255, 1997.

33. M. Jha, P.G. Charalambides and R. Ballarini, "Near-Tip Mode-I Elastic Fields in Bimaterial Layered Systems," International Journal of Solids and Structures, Vol. 34, No. 15, pp. 1849-1871, 1997.

32. D.G. Lewicki and R. Ballarini, "Gear Crack Propagation Life Investigations," International Journal of Fracture, Vol. 87, pp. 58-86, 1997 (also appeared as a feature article in Gear Technology, Nov./Dec. 1997, pp. 18-24).

31. R. Ballarini, R.L. Mullen, Y. Yin, A. Kahn, S. Stemmer and A.H. Heuer, "The Fracture Toughness of Polycrystalline Silicon Microdevices: A First Report," Journal of Materials Research, Vol. 12, No. 4, pp. 915-922, 1997.

30. R. Kayacan, R. Ballarini, R.L. Mullen and R.R. Wang, "Effects of Attachment Clips on Occlusal Force Transmission in Removable Implant-Supported Overdentures and Cantilevered Superstructures," International Journal of Oral and Maxillofacial Implants, Vol. 12, No. 2, pp. 228-236, 1997.

29. D.G. Lewicki and R. Ballarini, "Effect of Rim Thickness on Gear Crack Propagation Path," ASME Journal of Mechanical Design, Vol. 119, pp. 88-95, 1997.

28. A. Romeo and R. Ballarini, "A Cohesive Zone Model for Cracks Terminating at a Bimaterial Interface," International Journal of Solids and Structures, Vol. 34, No. 11, pp. 1307-1326, 1997.

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1996 Publications

27. L.T. Kuhn, H. Kessler, R. Ballarini, A.H. Heuer and S.M. Spearing, "Fracture Mechanisms of the Strombus Gigas Conch Shell: Implications for the Design of Brittle Laminates," Journal of Materials Science, Vol. 31, pp. 6583-6594, 1996.

26. H. Kessler, R. Ballarini, R.L. Mullen, L.T. Kuhn and A.H. Heuer, "A Biomimetic Example of Brittle Toughening: (I) Steady State Multiple Cracking," Computational Materials Science, Vol. 5, pp. 157-166, 1996.

23. R. Ballarini and M.J. Leitman, "Bending the Elastica with Mathematica," The International Journal of Mechanical Engineering Education, Vol. 23, No. 4, pp. 11-21, 1996.

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1995 Publications

25. A. Romeo and R. Ballarini, "K-Dominance for a Pressurized Griffith Crack," International Journal of Fracture, Vol. 71, No. 1, pp. 95-97, 1995.

24. R. Ballarini, S. Islam, and P.G. Charalambides "Near-Tip Dual-Length Scale Mechanics of Mode-I Cracking in Laminate Brittle Matrix Composites," International Journal Fracture, Vol. 70, pp. 275-304, 1995.

22. R. Ballarini, "A Certain Mixed Boundary Value Problem for a Bimaterial Interface," International Journal of Solids and Structures, Vol. 32, No. 3/4, pp. 279-289, 1995.

21. A. Romeo and R. Ballarini, "A Crack Very Close to a Bimaterial Interface," ASME Journal of Applied Mechanics, Vol. 62, pp. 614-619, 1995.

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1994 Publications

20. A. Romeo and R. Ballarini, "The Influence of Elastic Mismatch on the Size of the Plastic Zone of a Crack Terminating at a Brittle-Ductile Interface," International Journal of Fracture, Vol. 65, pp. 183-196, 1994.

19. H. Luo and R. Ballarini, "The Effects of Anisotropy on the Nonlinear Behavior of Bridged Cracks in Long Strips," Journal of the Mechanics and Physics of Solids, Vol. 42, No. 2, pp. 141-157, 1994.

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1993 Publications

18. R. Ballarini and S. Muju, "Stability Analysis of Bridged Cracks in Brittle Matrix Composites," ASME Journal of Engineering for Gas Turbines and Power, Vol. 115, January 1993, pp. 127-138.

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1992 Publications

17. H. Luo, R. Ballarini and J.J. Lewandowski, "Effects of Superposed Hydrostatic Stress on the Elastoplastic Behavior of Two-Phase Composites," Journal of Composite Materials, Vol. 26, No. 13, pp. 1945-1967, 1992.

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1991 Publications

16. R. Ballarini and H. Luo, "Green's Functions for Dislocations in Bonded Strips and Related Crack Problems," International Journal of Fracture, Vol. 50, 1991, pp. 239-262.

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1990 Publications

15. D.J. Mukai, R. Ballarini and G.R. Miller, "Analysis of Branched Interface Cracks," ASME Journal of Applied Mechanics, Vol. 57, pp. 887-893, December 1990.

14. R. Ballarini and Y. Hsu, "Three-Dimensional Stress Intensity Factor Analysis of a Surface Crack in a High Speed Bearing," International Journal of Fracture, Vol. 46, 1990, pp. 141-158.

13. R. Ballarini, "A Rigid Line Inclusion at a Bimaterial Interface," Engineering Fracture Mechanics, Vol. 37, No. 1, pp. 1-5, 1990.

12. R. Ballarini and S. Ahmed, "Local-Global Analysis of Crack Growth in Continuously Reinforced Ceramic Matrix Composites," ASME Journal of Engineering for Gas Turbines and Power, Vol. 112, October 1990, pp. 512-520.

11. R. Ballarini, "A Semi-Empirical Analysis of Micro-Cracking in Concrete," Engineering Fracture Mechanics, Vol. 35, No. 1/2/3, pp. 55-66, 1990.

10. R. Ballarini, A. Parulekar and M.E. Plesha, "Finite Element Modeling of Discontinuities with Dilatancy and Surface Degradation," Engineering Fracture Mechanics, Vol. 35, No. 1/2/3, pp. 385-397, 1990.

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1989 Publications and Earlier

9. M.E. Plesha, R. Ballarini and A. Parulekar, "A Constitutive Model and Finite Element Solution Procedure for Contact-Friction Problems," ASCE Journal of Engineering Mechanics, Vol. 115, No. 12, December 1989, pp. 2649-2668.

8. R. Ballarini and M. Denda, "The Interaction Between a Crack and a Dislocation Dipole," International Journal of Fracture, Vol. 37, 1988, pp. 61-71.

7. R. Ballarini and M.E. Plesha, "The Effects of Crack Surface Friction and Roughness on Crack Tip Stress Fields," International Journal of Fracture, Vol. 34, July 1987, pp. 195-207.

6. R. Ballarini, L.M. Keer and S.P. Shah, "An Analytical Model for the Pullout of Rigid Anchors," International Journal of Fracture, Vol. 33, February 1987, pp. 75-94.

5. Ballarini, "An Integral Equation Approach for Rigid Line Inhomogeneity Problems," International Journal of Fracture, Vol. 33, February 1987, R23-R26.

4. R. Ballarini, "Compliance Matrices for Cracked Bodies," International Journal of Fracture, Vol. 31, August 1986, pp. R63-R66.

3. R. Ballarini, S.P. Shah and L.M. Keer, "Failure Characteristics of Short Anchor Bolts Embedded in a Brittle Material," Proceedings of the Royal Society of London, A404, pp. 35-54, 1986.

2. R. Ballarini, S.P. Shah and L.M. Keer, "Crack Growth in Cement Based Composites," Engineering Fracture Mechanics, Vol. 20, No. 3, pp. 433-445, 1984.

1. L.M. Keer and R. Ballarini, "Smooth Contact Between a Rigid Indenter and an Initially Stressed Orthotropic Beam," A.I.A.A. Journal, Vol. 21, No. 7, July 1983, pp. 1035-1042.

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