Dr Mahmoud Mostafavi

LecturerDr Mahmoud Mostafavi

Department of Mechanical Engineering
Sir Frederick Mappin Building
Mappin Street
S1 3JD

Telephone: +44 (0) 114 222 7868
Fax: +44 (0) 114 222 7890

Email: m.mostafavi@sheffield.ac.uk


Mahmoud received his Ph.D. from the University of Bristol in 2009; the topic was plastic constraint (geometry) and multi-axiality effect on the fracture behaviour of metallic materials. He then joined the Materials Performance Centre at the University of Manchester as a research associate, where he studied the effects of stress-state in the fracture of graphite.

Following that he was appointed as a James Martin Fellow at the University of Oxford in 2011, where he worked on developing a method to study three-dimensional damage initiation. In 2012 he was awarded a Junior Research Fellowship at Linacre College, Oxford. He joined the department in 2013 as a lecturer. Mahmoud sits on the UK Forum for Engineering Structural Integrity council.

Research Areas

Mahmoud's research focus is two and three dimensional imaged-based fracture mechanics. This is particularly important for materials in the energy and aerospace sectors, where damage development limits lifetime. We need techniques that can study damage development in aggressive environments.

Digital image correlation is a suitable technique to study fracture behaviour of components with different degrees of plastic constraint, geometry, mode mixity, multi-axiality loading, etc. DIC, however, is limited to the surface of the material. Digital volume correlation, combined with three-dimensional imaging techniques (e.g. X-ray computed tomography) allows us to measure displacements, and hence deformation, within materials.

Experimental work is carried out using state-of-the-art tomography facilities, such as the Diamond Light Source, in collaboration with university partners that include Oxford, Manchester, Birmingham, Southampton and Bristol. The experimental results are then used to validate complex finite element models. The objective is to expand our knowledge on how damage will develop under real conditions of service, and to improve structural integrity assessments.

Journal articles