Publications

Refereed Journal Articles

Thermal Barrier Coatings

  1. M.T. Hernandez, D. Cojocaru, A.M. Karlsson, M. Bartsch, On the Crack Opening of a Characteristic Crack due to Thermo-mechanical Fatigue Testing of Thermal Barrier Coatings, Computational Material Science, doi:10.1016/j.commatsci.2011.03.041
  2. M. Hernandez, A.M. Karlsson, M. Bartsch, On TGO creep and the initiation of a class of fatigue cracks in thermal barrier coatings, Surface and Coatings Technology, 203(23) 3549-3558 (2009)
  3. J. Yan, A.M. Karlsson, M. Bartsch, X. Chen, On stresses induced in a thermal barrier coating due to indentation testing, Computational Materials Science, 44(4) 1178-1191(2009)
  4. J. Yan, T. Leist, M. Bartsch, A. M. Karlsson, On cracks and delaminations of thermal barrier coatings due to indentation testing: Experimental Investigations, Acta Materialia 56(15) 4080 - 4090 (2008)
  5. M. Bartsch, B. Baufeld, M. Heinzelmann, A.M. Karlsson, S. Dalkili, L. Chernova, Multiaxial thermo-mechanical fatigue on materials systems for gas turbines, Materialwissenschaft und Werkstofftechnik, 38(9) 712-719 (2007)
  6. A.M. Karlsson, Modeling Failures of Thermal Barrier Coatings, Key Engineering Material 333 155-165 (2007)
  7. M. Bartsch, B. Baufeld, S. Dalkilic, I. Mircea, K. Lambrinou, T. Leist, J. Yan, A.M. Karlsson, Time-Economic Lifetime Assessment for High Performance Thermal Barrier Coating Systems, Key Engineering Material 333 147-154 (2007)
  8. J. Shi, A.M. Karlsson, B. Baufeld and M. Bartsch, Evolution of Surface Morphology in Thermo-mechanically Cycled NiCoCrAlY Bondcoats, Materials Science and Engineering A 434 39-52 (2006)
  9. J. Shi, S. Darzens and A.M. Karlsson, Aspects of the morphological evolution in thermal barrier coatings and the intrinsic thermal mismatch therein, Materials Science and Engineering A, 392 301-312 (2005)
  10. Y.H. Sohn, B. Jayaraj, S. Laxman, B. Franke, and A.M. Karlsson, Non-Destructive and Microstructural Characterization of Thermal Barrier Coatings, Journal of Materials, October 53-57 (2004)
  11. S. Darzens and A.M. Karlsson, On the microstructural development in Platinum-modified aluminide bond coats, Surface and Coatings Technology, 177-178 p 108-112 (2004)
  12. A.M. Karlsson, On the Mechanical Response in a Thermal Barrier System due to Martensitic Phase Transformation in the Bond Coat, JEMT 125 346-352 (2003)
  13. A.M. Karlsson, J.W. Hutchinson, A.G. Evans, The displacement of the thermally grown oxide in thermal barrier systems upon temperature cycling, Materials Science and Engineering A351 244-257 (2003)
  14. Karlsson, A.M., Hutchinson, J.W., Evans, A.G., A Fundamental Model of Cyclic Instabilities in Thermal Barrier Systems, J. Mech. and Physics Solids 50 (8) 1565-1589 (2002)
  15. Karlsson, A.M., Xu, T, Evans, A.G., The Effect of the Thermal Barrier Coating on the Displacement Instability in Thermal Barrier Systems, Acta Materialia 50 (6) 1211-1218 (2002)
  16. Karlsson, A.M., Levi, C.G., Evans, A.G., A Model Study of Displacement Instabilities During Cyclic Oxidation, Acta Materialia 50 (6) 1263-1273 (2002)
  17. Karlsson, A.M., Evans, A.G., A Numerical Model for the Cyclic Instability in Thermal Barrier Systems, Acta Materialia 49 (10) 1793-1804 (2001)

Fracture and Durability

  1. Cojocaru, A.M. Karlsson, Assessing Plastically Dissipated Energy as a Condition for Fatigue Crack Growth, International Journal of Fatigue 31(7) 1154-1162 (2009)
  2. D. Cojocaru, A.M. Karlsson, An object-oriented approach for modeling and simulation of crack growth in cyclically loaded structures, Advances in Engineering Software, 39(12) 995-1009 (2008)
  3. A. Agrawal and A.M. Karlsson, On the Reference Length and Mode Mixity for a Bimaterial Interface, J. of Engineering Materials and Technology, 129 580-587 (2007)
  4. A. Agrawal, A.M. Karlsson, Obtaining Stress Intensity Factor-based Mode Mixity for Bimaterial Interface Cracks using the Virtual Crack Closure Technique, International Journal of Fracture, 141(1) 71-98 (2006) Corrections to the paper : click here
  5. D. Cojocaru, A.M. Karlsson, A simple numerical method of cycle jumps for cyclically loaded structures, International Journal of Fatigue, 28 (12) 1677-1689 (2006)
  6. S.Q. Guo, D.R.. Mumm, A.M. Karlsson, Y. Kagawa, Measurement of Interface Shear Mechanical Properties in Thermal Barrier Coating Systems by a Barb Pullout Method, Scripta Materialia, 53 1043-1048 (2005)

Instrumented Indentation

  1. J. Yan, A.M. Karlsson, X. Chen, On Internal Cone Cracks Induced by Conical Indentation in Brittle Materials, Engineering Fracture Mechanics, 74( 16) 2535-2546 (2007)
  2. J. Yan, A.M. Karlsson, X. Chen, Determining Plastic Properties of a Bulk Material With Residual Stress by Using Conical Indentation, Int. J. of Solids and Structures, 44 (11-12) 3720-3737 (2007)
  3. J. Yan, X. Chen, A.M. Karlsson, Determining Equi-Biaxial Residual Stress and Mechanical Properties from the Force-Displacement Curves of Conical Microindentation, J. of Materials Engineering and Technology, 129 200-206 (2007)
  4. X. Chen, J. Yan, A.M. Karlsson, On the Determination of residual stresses and mechanical properties by indentation, Materials Science and Engineering A, 416 (1-2) 139-149 (2006)
  5. M. Zhao, X. Chen, J. Yan, A.M. Karlsson, Determination of Uniaxial Residual Stress and Mechanical Properties by Instrumented Indentation, Acta Materialia, 54 2823-2832 (2006)

Polymer Fuel Cell Membranes

  1. Z. Lu, C. Kim, A.M. Karlsson, J.C. Cross III, M.H. Santare, Effect of GDL modulus and land-groove geometry on membrane stresses in PEM fuel Cells, J Power Sources 196 (10) 4646-4654 (2011) 10.1016/j.jpowsour.2011.01.028
  2. A. Kusoglu, M.H. Santare, A.M. Karlsson, S. Cleghorn and W. B. Johnson, Investigation of Mechanical Durability in Proton Exchange Membrane Fuel Cells, J. Electrochemical Society 157(5) 705-713 (2010)
  3. A. Kusoglu, A.M. Karlsson, M.H. Santare, Structure-property Relationship in Ionomer Membranes, Polymer 51 1457-1464 http://dx.doi.org/10.1016/j.polymer.2010.01.046 (2010)
  4. A. Kusoglu, Y. Tang, M. Lugo, A.M. Karlsson, M.H. Santare, S. Cleghorn and W. B. Johnson, Constitutive Response and mechanical properties of PFSA membranes in liquid water , Journal of Power Sources,195(2) 483-492 (2010)
  5. A. Kusoglu, M.H. Santare, A.M. Karlsson, Mechanics-based model for non-affine swelling in perfluorosulfonic acid (PFSA) membranes, Polymer, 50 2481-2491(2009)
  6. A. Kusoglu, M.H. Santare, A.M. Karlsson, S. Cleghorn and W. B. Johnson, Micro-mechanics model based on the nanostructure of PFSA membranes, Journal of Polymer Science Part B: Polymer Physics, 46(22) 2404-2417 (2008)
  7. A. Kusoglu, Y. Tang, M.H. Santare, A.M. Karlsson, S. Cleghorn and W. B. Johnson, Temperature and Humidity Dependent Phenomenological Constitutive Model for Plastic Flow Behavior of PFSA Membranes, Journal of Fuel Cells Science and Technology, Vol 9, February paper # 011012 (8 pages) (2009)
  8. Y. Tang, A. Kusoglu, A.M. Karlsson, M.H. Santare, S. Cleghorn and W. B. Johnson, Mechanical Properties of a Reinforced Composite Polymer Electrolyte Membrane and its Simulated Performance in a PEM Fuel Cell, Journal of Power Sources, 175 817-825 (2008)
  9. A. Kusoglu, A.M. Karlsson, M.H. Santare, S. Cleghorn, W.B. Johnson, Mechanical Behavior of Fuel Cell Membranes under Humidity Cycles and Effect of Swelling Anisotropy on the Fatigue Stresses, J. of Power Sources, 70 345-558 (2007)
  10. A. Kusoglu, A.M. Karlsson, M.H. Santare, S. Cleghorn, W. B. Johnson, Mechanical response of fuel cell membranes subjected to hydro-thermal loading, J. of Power Sources Vol 161/2 pp 987-996 (2006)
  11. Y. Tang, A.M. Karlsson, M.H. Santare, M. Gilbert S. Cleghorn, W. B. Johnson, An Experimental investigation of Humidity and Temperature Effects on the Mechanical Properties of Perfluorosulfonic Acid Membrane, Materials Science and Engineering A, 425 297-304 (2006)
  12. Y. Tang, M. H. Santare, A.M. Karlsson, S. Cleghorn, W. B. Johnson, Stresses in Proton Exchange Membranes due to hydro-thermal loading, Journal of Fuel Cells Science and Technology, 3 119-124 (2006)

Light Weight and Composite Structures

  1. E. E. Saenz, L.A. Carlsson, A. M. Karlsson, In-Situ Analysis of Crack Propagation in Polymer Foams, J. Materials Science. Published on line: DOI 10.1007/s10853-011-5491-y (2011)
  2. E. E. Saenz, L.A. Carlsson, A. Karlsson, Characterization of fracture toughness (Gc) of PVC and PES foams, J. Materials Science, 46 3207-3215 (2011)
  3. L. Cheng, A. Thomas, J. Glancey, A.M. Karlsson, Mechanical behavior of bio-inspired laminated composites, Composite Part A 42 211-220 (2011)
  4. D. Cojocaru and A.M. Karlsson, On the Effective Properties of Macroscopically Isotropic Media Containing Randomly Dispersed Spherical Particles, J Eng Mat Tech, 130(2), 021011 11 pages (2010)
  5. L. Cheng, L. Wang and A.M. Karlsson, Mechanics based analysis of selected features of the exoskeletal microstructure of Popillia japonica, J Materials Research, 24(11) 3253-3267 (2009)
  6. L. Cheng, L. Wang and A.M. Karlsson, Image analyses of two crustacean exoskeletons and implications of the exoskeletal microstructure on the mechanical behavior, J Materials Research 23(11) 2854-2872, (2008)
  7. J. Caulfield, A.M. Karlsson and D.J. Sypeck, On The Crushing of a Textile Core Sandwich Panel, AIAA Journal, 44 (6) 1339-1344(2006)
  8. S. Hyun, A.M. Karlsson, S. Torquato, A.G. Evans, Simulated Properties of Kagome and Tetragonal Truss Core Panels, I. J. Solids and Structures 40 (25) 6989-699
  9. Karlsson, A.M., The effects of patch properties on the debonding behavior of patched beam-plates, Journal of Engineering Materials and Technology 122 (4) 389-393 (2000)
  10. Karlsson, A.M., Bottega, W.J., Thermo-Mechanical Response of Patched Plates, AIAA Journal 38 (6) 1055-1062 (2000)
  11. Karlsson, A.M., Bottega, W.J., On Thermal Buckling of Patched Beam-Plates, International Journal of Solids and Structures 37(34) 4655-4690 (2000)
  12. Karlsson, A.M., Bottega, W.J., On the Behavior of a Class of Patched Plates During Cooling, International Journal of Non-Linear Mechanics 35(3) 543-566 (2000)
  13. Karlsson, A.M., Bottega, W.J., On the Detachment of Step-Tapered Doublers. Part 2 - Evolution of Pressure Loaded Structures, International Journal of Solids and Structures, 36 1625-1651 (1999).
  14. Bottega, W.J., Karlsson, A.M., On the Detachment of Step-Tapered Doublers. Part 1 - Foundations, International Journal of Solids and Structures, 36 1597-1623 (1999).
  15. Karlsson, A.M., Bottega, W.J., The Presence of Edge-Point Contact and Its Influence On the Debonding of Patched Panels, International Journal of Fracture, 96:4 383-406 (1999).

University of Delaware, Newark, Delaware 19716-3140