Publications

Selected Publications (Complete list below)

“Failure Characteristics of Short Anchor Bolts Embedded in a Brittle Material,” Proceedings of the Royal Society of London, A404, pp. 35-54, 1986.

“Electrostatically Actuated Failure of Microfabricated Polysilicon Fracture Mechanics Specimens,” Proceedings of the Royal Society of London, A455, pp. 3807-3823, 1999.

“Structural Basis for the Fracture Toughness of the Shell of the Conch Strombus Gigas, Nature, Vol. 405, June 29, pp. 1036-1040, 2000.

“Fatigue Failure in Polysilicon Not Due to Simple Stress Corrosion,” Science, Vol. 298, pp. 1215-1219, Nov. 8, 2002.

“Nano Measurements With Micro Devices: Mechanical Properties of Hydrated Collagen Fibrils,” Journal of the Royal Society Interface, Vol. 3, pp. 117-121, 2006.

“Coupled Quantum Mechanical/Molecular Mechanical Modeling of the Fracture of Defective Carbon Nanotubes and Graphene Sheets,” Physical Review B 75, 1 2007.

“Stress-strain Experiments on Individual Collagen Fibrils,” Biophysical Journal, Vol. 95, 2008, 3956-3963.

“A Theoretical Analysis of the Breakdown of Electrostrictive Oxide Film on Metal”, 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).

“A Distinct Element Method for Large Scale Simulations of Carbon Nanotube Assemblies,” Journal of the Mechanics and Physics of Solids, Vol. 61, pp. 762-782, 2013.

2018 Publications

109. K.B. Nakshatrala, S.H.S. Joodat, and R. Ballarini, “Modeling Flow in Porous Media with Double Porosity/Permeability: Mathematical Model, Properties, and Analytical Solutions,” to appear in ASME Journal of Applied Mechanics.

108. S.H.S. Joodat, K.B. Nakshatrala, and R. Ballarini, “Modeling Flow in Porous Media with Double Porosity/Permeability: A Stabilized Mixed Formulation, Error Analysis and Numerical Solutions,” to appear in Computer Methods in Applied Mechanics and Engineering.108

2017 Publications

107. W. Gerberich, E.B. Tadmor, J. Kysar, J.A. Zimmerman, A.M. Minor, I. Szlufarska, J. Amodeo, B. Devincre, E. Hintsala, and R. Ballarini, “Review Article: Case Studies in Future Trends of Computational and Experimental Nanomechanics,” Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films, 35, 060801 (2017).107

106. E. Dontsova and R. Ballarini, “Atomistic Modeling of the Fracture Toughness of Silicon and Silicon-Silicon Interfaces.” International Journal of Fracture, Vol. 207, Issue 1, pp. 99-122, Sept. 2017. 106

105. R. Ballarini and Y. Xie, “Fracture Mechanics Model of Anchor Group Breakout,” ASCE Journal of Engineering Mechanics, 2017, 143(4): 04016125. 105

104. R. Ballarini, L. La Mendola, J. Le, A. Monaco, “Computational Investigation of the Size Effect of Hybrid Steel Trussed Concrete Beams,” ASCE Journal of Structural Engineering, Vol. 143(8), Article 04017060, August 2017.104

103. E.D. Hintsala, S. Bhowmick, Y.Y. Xue, R. Ballarini, S.A.S. Asif and W.W. Gerberich, “Temperature Dependent Fracture Initiation in Microscale Silicon,” Scripta Materialia, Vo. 130, pp. 78-82, March 15, 2017.103

2016 Publications

102. R. Ballarini, G. Pisano and G. Royer-Carfagni, “The Lower Bound for Glass Strength and its Statistical Interpretation with Generalized Weibull Statistics for Structural Applications,” ASCE Journal of Engineering Mechanics, 2016, Vol. 142(12); 04016100.102

101. R. Ballarini and G. Royer-Carfagni, “A Newtonian Interpretation of Configurational Forces on Dislocations and Cracks,” Journal of the Mechanics and Physics of Solids, Vol. 95, pp. 602-620, October 2016.101

100. Y. Liu, R. Ballarini and S.J. Eppell, “Tension Tests on Mammaliam Collagen Fibrils,” Interface Focus Vol. 6, Issue: 1, Article: 20150080, February 6, 2016.100

99. R. Ballarini, G. Pisano and G. Royer-Carfagni, “New Calibration of Partial Material Factors for the Structural Design of Float Glass. Comparison of Bounded and Unbounded Statistics for Glass Strength,” Construction and Building Materials 121, pp. 69-80, 2016.99

98. R. Ballarini and G. Royer-Carfagni, “Closed-Path J-Integral Analysis of Bridged and Phase-Field Cracks,” ASME Journal of Applied Mechanics, Vol. 83, 061008-2, 2016.98

97. S. Adibi, P.S. Branicio and R. Ballarini, “Compromising High Strength and Ductility in Nanoglass-metallic Glass Nanolaminates,” Royal Society of Chemistry Advances, Vol. 6, Issue: 16, 13548-13553, 2016.97

2015 Publications

96. W.W. Gerberich, R. Ballarini, E.D. Hintsala, M. Mishra, J-F Molinari and I. Szlufarska, “Toward Demystifying the Mohs Hardness Scale,” Feature Article in September issue of Journal of the American Ceramic Society, Vol. 98, No. 9, 2681-2688, 2015.96

95. J. Le, R. Ballarini and Z. Zhu, “Modeling of Probabilistic Failure of Polycrystalline Silicon MEMS Structures,” Feature Article and Cover Page in June issue of Journal of the American Ceramic Society, Vol. 98, Issue 6, 1685-1697, June 2015.95

94. I. Ostanin, R. Ballarini and T. Dumitrica, “Distinct Element Method for Multiscale Modeling of Cross-Linked Carbon Nanotube Bundles: From Soft to Strong Nanomaterials,” Journal of Materials Research, Vol. 30, No. 1, Jan. 2015, pp. 19-25.94

2014 Publications

93. R. Ballarini, A. Franco and G. Royer-Carfagni, “Wedge-Shaped Fracturing in the Pull Out of FRP Stiffeners from Quasi-Brittle Substrates,” International Journal of Solids and Structures, Vol. 51, Issue 18, September 2014, 3196-3208.93

92. I. Ostanin, R. Ballarini and T. Dumitrica, “Distinct Element Modeling of Carbon Nanotube Bundles with Intertube Sliding and Dissipation,” ASME Journal of Applied Mechanics, Vol. 81, Issue 6, June 2014.92

2013 Publications

91. A. Gautieri, S. Vesentini, A. Redaelli and R. Ballarini, “Modeling and Measuring Visco-elastic Propeties: From Collagen Molecules to Collagen Fibrils,” International Journal of Non-Linear Mechanics, Vol. 56, pp. 25-33, 2013 (published online http://dx.doi.org/10.1016/j.ijnonlinmec.2013.03.012i).91

90. J. Le, M. Pieuchot and R. Ballarini, “Effect of Stress Singularities on Scaling of Strength of Quasibrittle Structures,” ASCE Journal of Engineering Mechanics, Vol. 140, Issue 5, May 2014 (posted online 10.1061/(ASCE)EM.1943-7889.0000693 (July 10, 2013).90

89. D. Giannuzzi, R. Ballarini, A. Huckelbridge, Jr., M. Pollino and M. Valente, “Braced Ductile Shear Panel: a New Seismic Resistant Framing System,” ASCE Journal of Structural Engineering, Vol. 140(2), 0401305, 2014 (posted online 10.1061/(ASCE)ST.1943-541X.0000814, Feb. 1, 2013).89

88. I. Ostanin, R. Ballarini, D. Potyondy and T. Dumitrica, “A Distinct Element Method for Large Scale Simulations of Carbon Nanotube Assemblies,” Journal of the Mechanics and Physics of Solids, Vol. 61, pp. 762-782, 2013.pdf icon

2012 Publications

87. M. Liao and R. Ballarini, ” A Fracture Mechanics-Based Design Approach for Unbonded Concrete Overlay Pavements,” ASCE Journal of Engineering Mechanics, Vol. 138, No. 9, pp. 1195-2004, 2012.pdf icon

86. R. Piccinin, R. Ballarini and S. Cattaneo, “Pullout Capacity of Headed Anchors in Prestressed Concrete,” to appear in ASCE Journal of Engineering Mechanics.pdf icon

85. 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. pdf icon

2011 Publications

84. 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 Silicon Nanospheres,” Computational Materials Science, Vol. 50, Issue 5, pp. 1651-1660, 2011. pdf icon

83. R. Ballarini, S. Jost and M. Liao, “Distributed Damage Creates Flaw Tolerance,” Engineering Fracture Mechanics, Vol. 78, Issue 9, pp. 2004-2009, 2011. pdf icon

82. 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. pdf icon

81. 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. pdf icon

80. 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). pdf icon

79. 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). pdf icon

78. 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). pdf icon

2010 Publications

77. 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). pdf icon

76. 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, 2010.76

75. 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. pdf icon

74. H. Kahn, 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. pdf icon

73. 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. pdf icon

72. 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. pdf icon

2009 Publications

71. 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. pdf icon

70. 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). pdf icon

69. 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. pdf icon

68. 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. pdf icon

67. 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. pdf icon

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2008 Publications

66. 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. pdf icon

65. 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. pdf icon

64. A. Avishai, H. Kahn, R. Ballarini and A.H. Heuer, “FIB and HRTEM Characterization of Surface Oxides on Polysilicon MEMS after Cyclic Loading,” Microscopy and Microanalysis, Supplement S2, 2008, 1010-1011 (DOI: 10.1017/S1431927608085917).

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 pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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). pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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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. pdf icon

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. pdf icon

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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. pdf icon

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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. pdf icon

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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. pdf icon

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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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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. pdf icon

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

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

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. pdf icon

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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