Contact Dr Ali Mehmanparast
- Tel: +44 (0) 1234 758331
- Email: a.mehmanparast@cranfield.ac.uk
Areas of expertise
- Computing, Simulation & Modelling
- Energy Asset Management
- Instrumentation & Sensors
- Renewable Energy
- Structures and Materials
Background
Dr Ali Mehmanparast (PhD, CEng MIMechE, MEng, FHEA, PGCAP) received his MEng degree in 2008 and PhD degree in 2012, both from the Mechanical Engineering Department at Imperial College London. Prior to joining Cranfield University as a Lecturer in 2014, he was a Post-Doctoral Research Associate at Imperial College London where he conducted research on environmental damage and service exposure effects on structural integrity assessment of high temperature components.
Academic Background:
• Master of Engineering (MEng & ACGI), Mechanical Engineering Department, Imperial College London, 2004-2008
• Doctor of Philosophy (PhD & DIC), Mechanical Engineering Department, Imperial College London, 2008-2012
• Postgraduate Certificate in Academic Practice (PGCAP), Cranfield University, 2015-2016
Career History:
• Post-Doctoral Research Associate, Mechanical Engineering Department, Imperial College London, 2012-2014
• Lecturer in Structural Integrity, Cranfield University, 2014-Present
• REMS CDT Manager, 2014-Present
• Structural Integrity Lab Manager, Cranfield University, 2014-Present
Current activities
Dr Mehmanparast is a Lecturer in Structural Integrity and the Manager of the Cranfield - Oxford University Renewable Energy Marine Structures (REMS) Centre for Doctoral Training. He also sits on the Engineering Integrity Society (EIS) Durability and Fatigue Committee and the UK Forum for Engineering Structural Integrity (FESI Council). Dr Mehmanparast is a Chartered Engineer (Institution of Mechanical Engineers) and a Fellow of The Higher Education Academy. His current research interests are:
• Life Prediction/Extension of Engineering Components and Structures
• Engineering Critical Assessment
• Fracture Mechanics
• Fatigue Crack Initiation and Growth
• Creep Deformation and Crack Growth
• Fracture Toughness
• Residual Stress Measurement
• Finite Element Modelling
• Digital Image Correlation (DIC) Measurement
Dr Mehmanparast is currently the principal supervisor of the following PhD/EngD students:
• Miss Anais Jacob: The Influence of Residual Stresses on Structural Integrity of Renewable Energy Marine Structures (Sponsored by STFC), Started in 2015
• Mr Victor Igwemezie: Corrosion-Fatigue in Renewable Energy Marine Structures (Sponsored through TETFUND), Started in 2015
• Miss Jessica Taylor: Assessment of Crack Arrest Behaviour in Modern Structural Steels (Sponsored by NSIRC, TWI and Lloyd's Register), Started in 2016
• Miss Satya Anandavijayan: Material Pre-straining Effects on Fatigue and Fracture Behaviour of Offshore Wind Monopile Structures (Sponsored by EPSRC), Started in 2016
• Mr Ali Hamedany: Residual Stress Effects on Structural Health Monitoring of Offshore Wind Monopiles (Sponsored by KCI-Netherlands), Started in 2017
The following PhD/EngD student(s) have successfully completed their studies under Dr Mehmanparast's supervision:
• Dr Ali Alturaihi: The Influence of Partial Peening on Fatigue Crack Growth, Completed in 2017
Clients
Science and Technology Facilities Council (STFC)
Engineering and Physical Sciences Research Council (EPSRC)
Carbon Trust
TWI
Lloyd's Register
Publications
Articles In Journals
- Mehmanparast A, Brennan F & Tavares I (2017) Fatigue crack growth rates for offshore wind monopile weldments in air and seawater: SLIC inter-laboratory test results, Materials and Design, 114 494-504.
- Moulas D, Shafiee M & Mehmanparast A (2017) Damage Analysis of Ship Collisions with Offshore Wind Turbine Foundations, Ocean Engineering, 143 149-162.
- Mehmanparast A & Davies C (2017) The influence of inelastic pre-straining on fracture toughness behaviour of Type 316H stainless steel, Engineering Fracture Mechanics, In Press.
- Adedipe O, Brennan F, Mehmanparast A, Kolios A & Tavares I (2017) Corrosion fatigue crack growth mechanisms in offshore monopile steel weldments, Fatigue and Fracture of Engineering Materials and Structures, 40 (11) 1868-1881.
- Al‐Turaihi A, Mehmanparast A & Brennan F (2017) The influence of partial surface shot peening on fatigue crack growth behaviour of a high‐strength ferritic steel, Fatigue and Fracture of Engineering Materials and Structures, In Press.
- Chahardehi A. & Mehmanparast A. (2016) Fatigue crack growth under remote and local compression–a state-of-the-art review, Frattura e Integrita Strutturale, 10 (35) 41-49.
- Mehmanparast A, Davies M C, Dean W D & Nikbin K (2016) Effects of plastic pre-straining level on the creep deformation, crack initiation and growth behaviour of 316H stainless steel, International Journal of Pressure Vessels and Piping, 141 (May) 1-10.
- Mehmanparast A, Davies CM & Nikbin K (2016) Creep-fatigue crack growth testing and analysis of pre-strained 316H stainless steel, Procedia Structural Integrity, 2 785-792.
- Jacob A & Mehmanparast A (2016) Sensitivity analysis of material microstructure effects on predicted crack paths using finite element simulations, Journal of Multiscale Modeling, 7 (2, article number 1650003).
- Quintero H & Mehmanparast A (2016) Prediction of creep crack initiation behaviour in 316H stainless steel using stress dependent creep ductility, International Journal of Solids and Structures, 97-98 (October) 101-115.
- Kim N-H, Kim Y-J, Dean DW, Davies CM, Nikbin K, Mehmanparast & A (2015) Elastic and Inelastic Responses of C(T) Specimens With Discontinuous Cracks, Journal of Pressure Vessel Technology, 137 (1).
- Mehmanparast A, Adedipe O, Brennan F & Chahardehi A (2015) Welding sequence effects on residual stress distribution in offshore wind monopile structures, Frattura e Integrita Strutturale, 10 (35) 125-131.
- Mehmanparast A, Davies CM, Dean DW & Nikbin KM (2014) Plastic pre-compression and creep damage effects on the fracture toughness behaviour of Type 316H stainless steel, Engineering Fracture Mechanics, 131 26-37.
- Mehmanparast A & Nikbin KM (2014) Numerical Prediction of the Long Term Creep Crack Growth Behaviour in Type 316H Stainless Steel, Key Engineering Materials, 577-578 153-156.
- Zhou H, Biglari F, Davies CM, Mehmanparast A & Nikbin KM (2014) Evaluation of fracture mechanics parameters for a range of weldment geometries with different mismatch ratios, Engineering Fracture Mechanics, 124-125 (July) 30-51.
- Mehmanparast A, Davies CM & Nikbin KM (2014) Quantification and Prediction of Residual Stresses in Creep Crack Growth Specimens, Materials Science Forum, 777 25-30.
- Mehmanparast A (2014) Prediction of creep crack growth behaviour in 316H stainless steel for a range of specimen geometries, International Journal of Pressure Vessels and Piping, 120-121 (Aug-Sept) 55-65.
- Mehmanparast A, Davies CM, Webster GA & Nikbin KM (2014) Creep crack growth rate predictions in 316H steel using stress dependent creep ductility, Materials at High Temperatures, 31 (1) 84-94.
- Mehmanparast A, Davies CM, Nikbin KM & Webster GA (2014) Creep crack growth predictions in 316H steel over a wide range of stresses and temperatures, International Journal of Pressure Vessels and Piping, 120-121 (Aug-Sept) 55-65.
- Zhou H, Mehmanparast A, Davies CM & Nikbin KM (2013) Evaluation of fracture mechanics parameters for bimaterial compact tension specimens, Materials Research Innovations, 17 (5) 318-322.
- Mehmanparast A, Davies CM, Dean DW & Nikbin K (2013) Material pre-conditioning effects on the creep behaviour of 316H stainless steel, International Journal of Pressure Vessels and Piping, 108-109 (Aug-Sept) 88-93.
- Mehmanparast A, Davies CM, Dean DW & Nikbin KM (2013) The influence of pre-compression on the creep deformation and failure behaviour of Type 316H stainless steel, Engineering Fracture Mechanics, 110 52-67.
- Mehmanparast A, Biglari F, Davies CM & Nikbin KM (2012) An investigation of irregular crack path effects on fracture mechanics parameters using a grain microstructure meshing technique, Journal of Multiscale Modeling, 4 (1).
- Mehmanparast A, Davies CM & Nikbin KM (2011) Evaluation of the testing and analysis methods in ASTM E2760-10 creep-fatigue crack growth testing standard for a range of steels, Journal of ASTM International, 8 (10).
Conference Papers
- Mehmanparast A & Nikbin K (2015)
The importance of micro-crack evolution under oxidation/creep conditions in component failure life predictions
. In: 18th International Symposium on Ceramics in Medicine, 2005, Kyoto, 5-8 December 2005. - Yatomi M, Mehmanparast A, Maleki S & Nikbin KM (2014) The weld depth and angle acuity effects on the crack growth behaviour of P91 feature test specimens. In: ASME 2014 Pressure Vessels and Piping Conference, Anaheim, 20 July 2014.
- Kim NH, Kim YJ, Davies CM, Mehmanparast A & Nikbin KM (2013) The effect of discontinuous crack in creep crack growth tests. In: ASME 2013 Pressure Vessels and Piping Conference (PVP 2013), Paris, 14-18 July 2013.
- Maleki S, Mehmanparast A & Nikbin KM (2013) Creep crack growth prediction of very long term P91 steel using extrapolated short-term uniaxial creep data. In: ASME 2013 Pressure Vessels and Piping Conference (PVP 2013), Paris, 14-18 July 2013.
- Mehmanparast A, Davies CM, Dean DW & Nikbin KM (2013) The influence of inelastic damage on tensile deformation and creep crack growth behaviour of type 316H stainless steel. In: ASME 2013 Pressure Vessels and Piping Conference (PVP 2013), Paris, 14-18 July 2013.
- Mehmanparast A, Maleki S, Yatomi M & Nikbin KM (2013) Specimen geometry and size effects on the creep crack growth behaviour of P91 weldments. In: ASME 2013 Pressure Vessels and Piping Conference (PVP 2013), Paris, 14-18 July 2013.
- Mehmanparast AN, Davies CM, Wimpory RC & Nikbin KM (2012)
Quantification of residual stresses induced by prior loading at high temperatures
. In: ASME 2011 Pressure Vessels and Piping Conference (PVP 2011), Baltimore, MA, 17-21 July 2011. - Mehmanparast A, Davies CM, Dean DW & Nikbin KM (2012)
Specimen Orientation and Constraint Effects on the Creep Crack Growth Behaviour of 316H Stainless Steel
. In: ASME 2012 Pressure Vessels and Piping Conference (PVP 2012), Toronto, Ontario, 15-19 July 2012. - Nezhad HY, O'Dowd NP, Davies CM, Mehmanparast AN & Nikbin KM (2012) Influence of Prior Deformation on Creep Crack Growth Behaviour of 316H Austenitic Steels. In: ASME 2012 Pressure Vessels and Piping Conference (PVP 2012), Toronto, Ontario, 15-19 July 2012.
- Davies CM, Dean DW & Mehmanparast A (2012)
TDFAD analysis of creep crack initiation in pre-strained and as-received type 316h stainless steel
. In: ASME 2012 Pressure Vessels and Piping Conference (PVP 2012), Toronto, Ontario, 15-19 July 2012. - Yazdani Nezhad H, O'Dowd NP, Davies CM, Mehmanparast AN & Nikbin KM (2012) Influence of prior deformation on creep crack growth behaviour of 316H austenitic steels. In: ASME 2012 Pressure Vessels and Piping Conference (PVP 2012), Toronto, 15 July 2012.
- Mehmanparast AN, Davies CM, Ardakani M & Nikbin KM (2011) A Microstructural Study of Compressive Plastic Pre-Strain Effects on Creep Damage Behaviour of Type 316H Stainless Steel. In: ASME 2011 Pressure Vessels and Piping Conference (PVP 2011), Baltimore, MA, 17-21 July 2011.
- Davies CM, Dean DW, Mehmanparast AN & Nikbin KM (2010) Compressive Pre-Strain Effects on the Creep and Crack Growth Behaviour of 316H Stainless Steel. In: ASME 2010 Pressure Vessels and Piping Conference (PVP 2010), Bellevue, WA, 18-22 July 2010.
- Mehmanparast AN, Davies CM & Nikbin KM (2010)
Validation of the k and j parameters in a compact tension specimen containing intergranular and straight crack paths
. In: ASME 2010 Pressure Vessels and Piping Conference (PVP 2010), Bellevue, WA, 18-22 July 2010. - Davies CM, Dean DW, Mehmanparast AN & Nikbin KM (2009)
The Influence of Creep-Fatigue Interaction on High Temperature Crack Growth in 316 Steel Weldments
. In: ASME 2009 Pressure Vessels and Piping Conference (PVP 2009), Prague, 26-30 July 2009.
Books
- Davies CM & Mehmanparast A (2013) Creep crack growth modelling in 316H stainless steel. In: Advanced materials modelling for structures. Holm Altenbach, Serge Kruch (ed.), Springer Berlin Heidelberg, p. 109-120.
