Ralph Abrahams

Assoc Professor

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Personal profile


A/Prof Ibrahim is in the department of Mechanical and Aerospace Engineering. His main research interests include: fracture and fatigue of aircraft structures, applying nano coatings and advanced techniques to improve fracture and fatigue properties of 7075 aluminium alloys and the structural integrity of aircraft structures. Improving fatigue properties of aluminium and magnesium alloys using friction-stir processing and thermo-mechanical techniques.

Whilst employed as a research associate at the UNSW, A/Prof Ibrahim completed his PhD in Fracture Mechanics in 1990 from the same university. He spent the next two years at UNSW and Melbourne University as a Postdoctoral Research Fellow (1990-1992).

A/Prof Ibrahim's uninterrupted 22 year track record is evident from his academic distinctions, awards and recognition of research work through 220 top international journal publications in the areas of improving material properties (fatigue and Fracture) of CNTs, light alloys and steels using thermo-mechanical techniques, fracture mechanics, and structural integrity properties. At prestigious research institutions (Melbourne, UNSW and Monash) his research activities have always been directly relevant to industrial applications and in this time A/Prof Ibrahim has been the Head of Research for eight years in the Department of Mechanical and Aerospace Engineering, Monash University. Over the past five years he has published 43 journal papers (34 of 43 journal papers are in high impact factor journals). He has attracted several ARC Discovery, Linkage and LIEF grants (cash commitment ~ $4.5m).

A/Prof Ibrahim currently spends 60% of his time on research and the supervision of PhD students and 40% on undergraduate teaching. Other large industry-sponsored projects include grants from US Air Force, the VIC Govt's ETIS Grant, and grants from major alumina. His professional distinctions include: membership of the Review Board of prestigious international conferences (e.g International Congress of Fracture (ICF11), International conference of International institute of welding (IIW), and International Congress on Mechanical behaviour of materials. Furthermore he has been regularly invited to present keynote lectures at several international conferences.

A/Prof Ibrahim has also established an advanced material testing laboratory with dedicated facilities (a nano scale tensile testing rig) for evaluating material characteristics, interfacial fracture toughness and delimitation of carbon nano tubes and servo-hydraulic testing machines for fatigue and fracture toughness testing of nano materials and nano coating systems. Other world class facilities to which he has access to include; The Monash Centre for Electron Microscopy (SEM and TEM) and AFM and High performance Computing (VPAC and NCI) for high fidelity numerical modelling of processes and structures. This is in addition to his access to a dedicated fatigue testing laboratory with servo-hydraulic test machines. In summary, these available resources give him a significant advantage in the field of avant-garde research.

Publications: Over 220 Refereed Journals; 170 Refereed Conference Proceedings

Patents: (1): Nano scale tensile testing and stress corrosion Cracking Test Rigs

Postgraduate supervision: 20PhD and 5 M.Eng students have completed their thesis under his supervision and he is currently supervising 7 PhD students in the areas of friction stir processing of magnesium alloys, interfacial fracture toughness evaluation of nano coatings, and fatigue and fracture of aircraft structures.

A/Prof Ibrahim's publications have been published in world-class journals such as Engineering Fracture Mechanics, the International Journal of Fracture, Metallurgical and Materials; A; Physical Metallurgy and Materials Science, Corrosion Science, the Electrochemical Society, and Materials Science and Engineering A.

A/Prof Ibrahim has won a number of awards, including the Monash Engendering Research Award, and has been invited to give seminars at research institutions in Australia, Singapore, Japan and UK.


  • Fracture Mechanics
  • FEM
  • Nano
  • Coatings
  • Fatigue
  • Aluminium
  • Magnesium Alloys
  • Friction-Stir Process

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Research Output 1997 2018

Effects of preheating and carbon dilution on material characteristics of laser-cladded hypereutectoid rail steels

Lai, Q., Abrahams, R., Yan, W., Qiu, C., Mutton, P., Paradowska, A., Fang, X., Soodi, M. & Wu, X. 17 Jan 2018 In : Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing. 712, p. 548-563 16 p.

Research output: Contribution to journalArticleResearchpeer-review

Investigation of a novel functionally graded material for the repair of premium hypereutectoid rails using laser cladding technology

Lai, Q., Abrahams, R., Yan, W., Qiu, C., Mutton, P., Paradowska, A. & Soodi, M. 1 Dec 2017 In : Composites Part B: Engineering. 130, p. 174-191 18 p.

Research output: Contribution to journalArticleResearchpeer-review

Detailed thermal and material flow analyses of friction stir forming using a three-dimensional particle based model

Fagan, T., Lemiale, V., Nairn, J., Ahuja, Y., Ibrahim, R. & Estrin, Y. 1 May 2016 In : Journal of Materials Processing Technology. 231, p. 422-430 9 p.

Research output: Contribution to journalArticleResearchpeer-review

Fatigue life behaviour of TiAlN and TiAlN/CrN coated notched P20 steel specimens

Bin Rahmat, M. A., Ibrahim, R. N., Oskouei, R. H. & Bushroa Binti, A. R. Jan 2016 In : Fatigue and Fracture of Engineering Materials and Structures. 39, 1, p. 57 - 67 11 p.

Research output: Contribution to journalArticleResearchpeer-review