Find Research Outputs

Search results

• A combined experimental and finite element approach for determining mechanical properties of aluminium alloys by nanoindentation

  Khan, K., Fitzpatrick, M., Hainsworth, S. & Edwards, L., 2011, In: Computational Materials Science. 49, 4, p. 751-760 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Nanoindentation
  • Aluminum Alloy
  • Mechanical Properties
  • Mechanical testing
  • nanoindentation
  36 Citations (Scopus)

• A comparison of fatigue crack growth performance of two aerospace grade aluminium alloys reinforced with bonded crack retarders

  Syed, A., Zhang, X. & Fitzpatrick, M., May 2018, In: Fatigue and Fracture of Engineering Materials and Structures. 41, 5, p. 1237-1242

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Fatigue crack propagation
  • Aluminum alloys
  • Cracks
  • Fatigue of materials
  • Stress intensity factors
  2 Citations (Scopus)

  34 Downloads (Pure)

• Activation volumes of oxygen self-diffusion in fluorite structured oxides

  Christopoulos, S-R. G., Kordatos, A., Cooper, M. W. D., Fitzpatrick, M. E. & Chroneos, A., 27 Oct 2016, In: Materials Research Express. 3, 10, 105504.

  Research output: Contribution to journal › Article › peer-review

  • Fluorspar
  • Oxides
  • Chemical activation
  • Oxygen
  • Molecular dynamics
  2 Citations (Scopus)

• A new bridge technique for neutron tomography and diffraction measurements

  Burca, G., James, J. A., Kockelmann, W., Fitzpatrick, M. E., Zhang, S. Y., Hovind, J. & Van Langh, R., 21 Sep 2011, In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 651, 1, p. 229-235 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Neutrons
  • Diffraction
  • Tomography
  • tomography
  • neutrons
  10 Citations (Scopus)

• An in situ powder neutron diffraction study of nano-precipitate formation during processing of oxide-dispersion-strengthened ferritic steels

  Zhang, H., Gorley, M. J., Boon Chong, K., Fitzpatrick, M. E., Roberts, S. G. & Grant, P. S., 5 Jan 2014, In: Journal of Alloys and Compounds. 582, 2014, p. 769-773

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Neutron powder diffraction
  • Oxides
  • Ferritic stainless steel
  • Precipitates
  • Annealing
  19 Citations (Scopus)

• Anomaly detection in time series data using a combination of wavelets, neural networks and Hilbert transform

  Kanarachos, S., Mathew, J., Chroneos, A. & Fitzpatrick, M. E., 2015.

  Research output: Contribution to conference › Paper

  Open Access

  File

  • Anomaly detection
  • Time series
  • Neural networks
  • Wavelet analysis
  • Structural health monitoring
  11 Citations (Scopus)

  277 Downloads (Pure)

• Application of synchrotron X-ray diffraction and nanoindentation for the determination of residual stress fields around scratches

  Khan, K., Fitzpatrick, M., Hainsworth, S., Evans, A. D. & Edwards, L., 2011, In: Acta Materialia. 59, 20, p. 7508-7520 13 p.

  Research output: Contribution to journal › Article › peer-review

  • Synchrotrons
  • Nanoindentation
  • X ray diffraction
  • Residual stresses
  • Diffraction
  27 Citations (Scopus)

• Application of the eigenstrain approach to predict the residual stress distribution in laser shock peened AA7050-T7451 samples

  Coratella, S., Sticchi, M., Toparli, M. B., Fitzpatrick, M. E. & Kashaev, K., 2015, In: Surface and Coatings Technology. 273, p. 39-49

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • stress distribution
  • residual stress
  • Residual stresses
  • Stress concentration
  • shock
  10 Citations (Scopus)

  205 Downloads (Pure)

• Application of the Eigenstrain Theory to Predict Residual Stress around Curved Edges after Laser Shock Peening

  Coratella, S., Toparli, M. B. & Fitzpatrick, M. E., Sep 2013, Materials Science Forum. Trans Tech Publications, Vol. 768-769. p. 185-192

  Research output: Chapter in Book/Report/Conference proceeding › Chapter

  Open Access

  • Shot peening
  • Residual stresses
  • Lasers
  • Finite element method
  • Mechanical engineering
  2 Citations (Scopus)

• Atomic force microscopy (AFM) for materials characterization

  Khan, M. K., Wang, Q. Y. & Fitzpatrick, M. E., 2016, Materials Characterization Using Nondestructive Evaluation (NDE) Methods. Huebschen, G., Altpeter, I., Tschuncky, R. & Herrmann, H-G. (eds.). London: Woodhead Publishing, p. 1-16

  Research output: Chapter in Book/Report/Conference proceeding › Chapter

  Open Access

  • atomic force microscopy
  • characterization
  • liquid air
  • stiffness
  • spatial resolution
  4 Citations (Scopus)

• Automotive Magneto-Rheological Dampers: Modelling and Parameter Identification using contrast-based Fruit Fly Optimisation

  Kanarachos, S., Savitski, D., Lagaros, N. & Fitzpatrick, M. E., Dec 2018, In: Soft Computing. 22, 24, p. 8131–8149 19 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Magnetorheological Damper
  • Fruit
  • Parameter Identification
  • Fruits
  • Damper
  4 Citations (Scopus)

  89 Downloads (Pure)

• Boundary Effects in the Eigenstrain Method

  Lee, S-Y., Coratella, S., Brügger, A., Clausen, B., Brown, D., Langer, K., Fitzpatrick, M. & Noyan, I. C., 15 Jun 2018, In: Experimental Mechanics. 58, 5, p. 799-814 16 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Neutron diffraction
  • Geometry
  • Thermal expansion
  • Residual stresses
  • Stress concentration
  1 Citation (Scopus)

  29 Downloads (Pure)

• Computational modelling to enhance safety of operating nuclear power plants

  Mathew, J., Christopoulos, S., Chroneos, A., Parfitt, D. & Fitzpatrick, M., 13 Oct 2016.

  Research output: Contribution to conference › Abstract

• Defect process and lithium diffusion in Li₂TiO₃

  Kuganathan, N., Kordatos, A., Fitzpatrick, M. E., Vovk, R. V. & Chroneos, A., 1 Dec 2018, In: Solid State Ionics. 327, p. 93-98 6 p.

  Research output: Contribution to journal › Article › peer-review

  • Vacancies
  • Lithium
  • lithium
  • Defects
  • defects
  25 Citations (Scopus)

• Describing oxygen self-diffusion in PuO2 by connecting point defect parameters with bulk properties

  Chroneos, A., Fitzpatrick, M. E. & Tsoukalas, L. H., 2015, In: Journal of Materials Science: Materials in Electronics. 26, 5, p. 3287-3290

  Research output: Contribution to journal › Article

  Open Access

  File

  • Point defects
  • point defects
  • Oxygen
  • oxygen
  • nuclear fuels
  14 Citations (Scopus)

  24 Downloads (Pure)

• Determination of multiple near-surface residual stress components in laser peened aluminium alloy via the contour method

  Toparli, M. B., Fitzpatrick, M. E. & Gungor, S., 2015, In: Metallurgical and Materials Transactions A. 46, 9, p. 4268-4275

  Research output: Contribution to journal › Article

  Open Access

  File

  • aluminum alloys
  • residual stress
  • Aluminum alloys
  • Residual stresses
  • Lasers
  7 Citations (Scopus)

  31 Downloads (Pure)

• Determination of normal and shear residual stresses from fracture surface mismatch

  Araujo de Oliveira, J., Kowal, J., Gungor, S. & Fitzpatrick, M. E., 2015, In: Materials & Design. 83, p. 176-184

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Shear stress
  • Residual stresses
  • Plasticity
  • Stress measurement
  • Forging
  5 Citations (Scopus)

  80 Downloads (Pure)

• Development and application of the contour method to determine the residual stresses in thin laser-peened aluminium alloy plates

  Toparli, M. B. & Fitzpatrick, M. E., 8 Oct 2015, In: Experimental Mechanics. 56, 2, p. 323-330

  Research output: Contribution to journal › Article

  Open Access

  File

  • Aluminum alloys
  • Residual stresses
  • Lasers
  • Splines
  • Glues
  11 Citations (Scopus)

  100 Downloads (Pure)

• Disordered Ionic Conductors

  Kordatos, A., Christopoulos, S., Fitzpatrick, M. & Chroneos, A., 8 Sep 2016.

  Research output: Contribution to conference › Abstract

  • conductors
  • solid oxide fuel cells
  • energy storage
  • electric power
  • electric batteries

• Effect of alloy temper on surface modification of aluminium 2624 by laser shock peening

  Zabeen, S., Langer, K. & Fitzpatrick, M. E., 15 Aug 2018, In: Surface and Coatings Technology. 347, p. 123-135 13 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • peening
  • Shot peening
  • Aluminum
  • Surface treatment
  • residual stress
  6 Citations (Scopus)

  9 Downloads (Pure)

• Effect of frequency on high-temperature fatigue crack growth in a silicon carbide reinforced silicon nitride composite

  Moffatt, J. E., Fitzpatrick, M. E. & Edwards, L., Feb 2013, In: International Journal of Fatigue. 47, February 2013, p. 319-329

  Research output: Contribution to journal › Article

  Open Access

  • Silicon Nitride
  • Fatigue Crack Growth
  • silicon nitride
  • silicon carbide
  • Silicon
  7 Citations (Scopus)

• Effect of grain size on domain structures, dielectric and thermal depoling of Nd-substituted bismuth titanate ceramics

  Viola, G., Boon Chong, K., Eriksson, M., Shen, Z., Zeng, J., Yin, Q., Kan, Y., Wang, P., Ning, H., Zhang, H., Fitzpatrick, M. E., Reece, M. J. & Yan, H., 2013, In: Applied Physics Letters. 103, 182903 (

  Research output: Contribution to journal › Article

  Open Access

  • titanates
  • bismuth
  • grain size
  • ceramics
  • domain wall
  23 Citations (Scopus)

• Effect of impact damage on fatigue performance of structures reinforced with GLARE bonded crack retarders

  Syed, A. K., Fitzpatrick, M. E., Moffatt, J. E., Doucet, J. & Durazo-Cardenas, I., 2015, In: International Journal of Fatigue. 80, p. 231-237 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Fatigue
  • Damage
  • Crack
  • Fatigue of materials
  • Cracks
  7 Citations (Scopus)

  33 Downloads (Pure)

• Effect of residual stress on the nanoindentation response of aerospace aluminium alloys

  Khan, K., Fitzpatrick, M., Hainsworth, S. & Edwards, L., 2011, In: Computational Materials Science. 50, 10, p. 2967-2976 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Nanoindentation
  • Aluminum Alloy
  • Residual Stress
  • nanoindentation
  • aluminum alloys
  35 Citations (Scopus)

• Effect of texture on the residual stress response from laser peening of an aluminium-lithium alloy

  Zabeen, S., Langer, K. & Fitzpatrick, M. E., 1 Jan 2018, In: Journal of Materials Processing Technology. 251, p. 317-329 13 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Lithium alloys
  • Shot peening
  • Aluminum alloys
  • Residual stresses
  • Textures
  6 Citations (Scopus)

  76 Downloads (Pure)

• Effect of Thermal Residual Stresses on Bonded Structures Containing Cold Expanded and Bolted Holes

  Syed, A., Fitzpatrick, M. E. & Moffatt, J. E., 2014, In: Advanced Materials Research. 996, Chapter II. Manufacturing and Materials Processing, p. 682-687

  Research output: Contribution to journal › Article

  Open Access

  • Thermal stress
  • Residual stresses
  • Neutron diffraction
  • Stress measurement
  • Compressive stress
  4 Citations (Scopus)

• Effect of ultrasonic nanocrystal surface modification on residual stress and fatigue cracking in engineering alloys

  Khan, K., Fitzpatrick, M., Wang, Q. Y., Pyoun, Y. S. & Amanov, A., Apr 2018, In: Fatigue and Fracture of Engineering Materials and Structures. 41, 4, p. 844-855 12 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Nanocrystals
  • Surface treatment
  • Residual stresses
  • Ultrasonics
  • Compressive stress
  17 Citations (Scopus)

  49 Downloads (Pure)

• Effect of ultrasonic peening and accelerated corrosion exposure on the residual stress distribution in welded marine steel

  Ahmed, B. & Fitzpatrick, M. E., 2015, In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 46, 3, p. 1214-1226

  Research output: Contribution to journal › Article › peer-review

  File

  • peening
  • Shot peening
  • Steel
  • stress distribution
  • residual stress
  10 Citations (Scopus)

  64 Downloads (Pure)

• Effect of Ultrasonic Peening on Fatigue Strength of Welded Marine Structures - Lloyd’s Register Research Programme

  Polezhayeva, H., Howarth, D., Kumar, M., Ahmad, B. & Fitzpatrick, M. E., 2014, Unknown Host Publication.

  Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding

  1 Citation (Scopus)

• Energy-resolved neutron imaging for reconstruction of strain introduced by cold working

  Tremsin, A. S., Kockelmann, W., Kelleher, J. F., Paradowska, A. M., Ramadhan, R. S. & Fitzpatrick, M. E., 28 Feb 2018, In: Journal of Imaging. 4, 3, 12 p., 48.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Cold working
  • Neutrons
  • Aluminum
  • Cold Temperature
  • Imaging techniques
  5 Citations (Scopus)

  6 Downloads (Pure)

• Evolution of residual stress during fatigue crack growth in an aluminium specimen with a bonded crack retarder

  Syed, A., Fitzpatrick, M. E. & Moffatt, J. E., Nov 2014, In: Composite Structures. 117, p. 12-16

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Aluminum
  • Fatigue crack propagation
  • Residual stresses
  • Cracks
  • Stress measurement
  5 Citations (Scopus)

  35 Downloads (Pure)

• Experimental study of room-temperature indentation viscoplastic ‘creep’ in zirconium

  Storer, S. C., Fitzpatrick, M. E., Hainsworth, S. V. & Rist, M. A., 2016, In: Philosophical Magazine. 96, 24, p. 2547-2563

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • nanoindentation
  • indentation
  • strain rate
  • room temperature
  • creep tests
  5 Citations (Scopus)

  37 Downloads (Pure)

• Fatigue and fracture of a 316 stainless steel metal matrix composite reinforced with 25% titanium diboride

  Bacon, D. H., Edwards, L., Mofffatt, J. E. & Fitzpatrick, M. E., Mar 2013, In: International Journal of Fatigue. 48, 2013, p. 39-47

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • titanium boride
  • Metal Matrix Composites
  • Stainless Steel
  • Titanium
  • Fatigue
  31 Citations (Scopus)

• Fatigue performance of friction stir welded marine grade steel

  Polezhayeva, H., Toumpis, A. I., Galloway, A. M., Molter, L., Ahmed, B. & Fitzpatrick, M. E., 13 Aug 2015, In: International Journal of Fatigue. 81, p. 162–170

  Research output: Contribution to journal › Article

  Open Access

  File

  • Fatigue
  • Steel
  • Friction Stir Welding
  • Friction
  • S-N Curve
  9 Citations (Scopus)

  89 Downloads (Pure)

• Finite Element Analysis of Laser Peening of Thin Aluminum Structures

  Langer, K., Spradlin, T. & Fitzpatrick, M., 6 Jan 2020, In: Metals. 10, 1, 16 p., 93.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Shot peening
  • Aluminum
  • Lasers
  • Finite element method
  • Surface treatment
  2 Citations (Scopus)

  10 Downloads (Pure)

• Germanium diffusion in aluminium: connection between point defect parameters with bulk properties

  Ganniari-Papageorgiou, E., Fitzpatrick, M. E. & Chroneos, A., 28 Jul 2015, In: Journal of Materials Science: Materials in Electronics. 26, 11, p. 8421-8424

  Research output: Contribution to journal › Article

  Open Access

  File

  • Germanium
  • Point defects
  • Aluminum
  • point defects
  • germanium
  6 Citations (Scopus)

  17 Downloads (Pure)

• High strain-rate material model validation for laser peening simulation

  Langer, K., Olson, S., Brockman, R., Braisted, W., Spradlin, T. & Fitzpatrick, M. E., 2015, In: The Journal of Engineering. September 2015

  Research output: Contribution to journal › Article

  Open Access

  File

  • Shot peening
  • Strain rate
  • Lasers
  • Compression testing
  • Residual stresses
  78 Downloads (Pure)

• Improvement of the Contour Method for Measurement of Near-Surface Residual Stresses from Laser Peening

  Torpali, M. B., Fitzpatrick, M. E. & Gungor, S., May 2013, In: Experimental Mechanics. 53, 9, p. 1705-1718

  Research output: Contribution to journal › Article

  Open Access

  • Shot peening
  • Residual stresses
  • Lasers
  • X ray diffraction
  • Splines
  27 Citations (Scopus)

• Incorporation of Y2O3 Particles into 410L Stainless Steel by a Powder Metallurgy Route

  Zeybek, A., Barroso, S. P., Chong, K. B., Edwards, L. & Fitzpatrick, M., Jun 2014, In: Journal of Materials Engineering and Performance. In press

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • yttria
  • Yttrium oxide
  • Ferritic stainless steel
  • Powder metallurgy
  • Neutron scattering
  7 Citations (Scopus)

  20 Downloads (Pure)

• Influence of cooling rate on the precipitation kinetics of nanoscale isothermal ω-phase in metastable β-Ti alloy, Ti–5Al–5Mo–5V–3Cr

  Sharma, D., Parfitt, D., Chen, B., Roebuck, B., Venero, D. A., Kada, S. R., Fabijanic, D. & Fitzpatrick, M. E., 6 Nov 2020, In: Journal of Alloys and Compounds. (In-Press), p. (In-Press) 157822.

  Research output: Contribution to journal › Article › peer-review

  • Precipitates
  • Cooling
  • Water
  • Neutron scattering
  • Aging of materials

• Insight on the inconsistencies of Barkhausen signal measurements for radiation damage on nuclear reactor steel

  Pirfo Barroso, S., Fizpatrick, M. E., Gillemot, F., Horváth, M. & Szekely, R., 2014, AIP Conference Proceedings. AIP, Vol. 1581. p. 1229

  Research output: Chapter in Book/Report/Conference proceeding › Chapter

  Open Access

  • Radiation damage
  • Magnetic variables measurement
  • Nuclear reactors
  • Irradiation
  • Steel
  1 Citation (Scopus)

• In situ observation of strain and phase transformation in plastically deformed 301 austenitic stainless steel

  Das, Y. B., Forsey, A. N., Simm, T. H., Perkins, K. M., Fitzpatrick, M. E., Gungor, S. & Moat, R. J., 16 Sep 2016, In: Materials & Design. 112, p. 107-116

  Research output: Contribution to journal › Article

  Open Access

  File

  • Phase transitions
  • Austenitic stainless steel
  • Transformation Induced Plasticity steel
  • Electron diffraction
  • Martensitic transformations
  35 Citations (Scopus)

  148 Downloads (Pure)

• Intrinsic defect processes and elastic properties of Ti3AC2 (A = Al, Si, Ga, Ge, In, Sn) MAX phases

  Christopoulos, S., Filippatos, P-P., Hadi, M. A., Kelaidis, N., Fitzpatrick, M. & Chroneos, A., 14 Jan 2018, In: Journal of Applied Physics. 123, 2, 025103.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • elastic properties
  • defects
  • nuclear fuels
  • operating temperature
  • transition metals
  15 Citations (Scopus)

  62 Downloads (Pure)

• Investigation of oxygen self-diffusion in PuO2 by combining molecular dynamics with thermodynamic calculations

  Saltas, V., Chroneos, A., Cooper, M. W. D., Fitzpatrick, M. E. & Vallianatos, F., 26 Oct 2016, In: RSC Advances. 6, 105, p. 103641-103649 9 p.

  Research output: Contribution to journal › Article

  Open Access

  File

  • Molecular dynamics
  • Chemical activation
  • Thermodynamics
  • Oxygen
  • Plutonium
  5 Citations (Scopus)

  21 Downloads (Pure)

• Life Extension Techniques for Aircraft Structures – Extending Durability and Promoting Damage Tolerance through Bonded Crack Retarders

  Irving, P. E., Zhang, X., Doucet, J., Figueroa-Gordon, D., Boscolo, M., Heinimann, M., Shepherd, G., Fitzpatrick, M. E. & Liljedahl, D., 2011, ICAF 2011 Structural Integrity: Influence of Efficiency and Green Imperatives. Springer Verlag, p. 753-770

  Research output: Chapter in Book/Report/Conference proceeding › Chapter

  Open Access

  • aircraft structures
  • straps
  • retarders
  • durability
  • cracks
  8 Citations (Scopus)

• Mapping residual strain induced by cold working and by laser shock peening using neutron transmission spectroscopy

  Ramadhan, R. S., Syed, A. K., Tremsin, A. S., Kockelmann, W., Dalgliesh, R., Chen, B., Parfitt, D. & Fitzpatrick, M. E., 5 Apr 2018, In: Materials and Design. 143, p. 56-64 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Cold working
  • Shot peening
  • Spectroscopy
  • Neutrons
  • Lasers
  11 Citations (Scopus)

  24 Downloads (Pure)

• Measurement and Modelling of Residual Stress in Wire-Feed Additively Manufactured Titanium

  Ahmed, B., van der Veen, S., Fitzpatrick, M. & Guo, H., 2018, In: Materials Science and Technology. 34, 18, p. 2250-2259 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Titanium
  • residual stress
  • Residual stresses
  • titanium
  • Wire
  6 Citations (Scopus)

  13 Downloads (Pure)

• Measurement of the evolution of internal strain and load partitioning in magnesium hybrid composites under compression load using in-situ synchrotron X-ray diffraction analysis

  Meixner, M., Fitzpatrick, M. E. & Reimers, W., 17 Jan 2011, In: Composites Science and Technology. 71, 2, p. 167-176 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Synchrotrons
  • X ray diffraction analysis
  • Magnesium
  • Compaction
  • Composite materials
  12 Citations (Scopus)

• Minimization and Mitigation of Wire EDM Cutting Errors in the Application of the Contour Method of Residual Stress Measurement

  Ahmed, B. & Fitzpatrick, M. E., Jan 2016, In: Metallurgical and Materials Transactions A. 47, 1, p. 301-313

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Stress measurement
  • stress measurement
  • residual stress
  • Residual stresses
  • Wire
  12 Citations (Scopus)

  101 Downloads (Pure)

• Modelling of an imaging beamline at the ISIS pulsed neutron source

  Burca, G., Kockelmann, W., James, J. A. & Fitzpatrick, M. E., 2013, In: Journal of Instrumentation. 8, October 2013

  Research output: Contribution to journal › Article

  Open Access

  • Neutron sources
  • Neutron
  • Imaging
  • Neutrons
  • neutron sources
  12 Citations (Scopus)