IMMPETUS is the acronym for "Institute for Microstructural and Mechanical Process Engineering: The University of Sheffield"

Our Mission Statement

To be the centre of excellence integrating and developing the three disciplins of mechanical, control and metallurgical engineering to produce world leading knowledge and through proccess models for thermomechanical processing of metals.


To integrate metallurgical, mechanical and thermal considerations in developing soundly based models for process planning and control to achieve target microstructures and product properties within increasingly fine tolerances and greater efficiency.



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  • To be an international centre of expertise, bringing academics and industrialists together to work on multidisciplinary projects.
  • To carry out high quality academic research on generic aspects of the overall research programme.
  • To interact with industry to ensure that projects are prioritised with a logical progression towards the overall aim, with early implementation of advances in understanding and methodology.
  • To collaborate with other research groups with expertise in the field to promote the effective use of resources to advance the research.
  • To train postgraduate and postdoctoral researchers in techniques appropriate to the processing of materials.
  • To provide advice on matters pertaining to the thermomechanical processing of materials to industry and government agencies.
  • To establish internal state variable models for microstructural and flow stress evolution, which can be implemented in FEM, codes for predicting local deformation conditions.
  • To investigate the influence of varying and transient deformation conditions, including strain path changes, on flow stress, deformed microstructures and recrystallisation behaviour and to incorporate the findings in the state variable model.
  • To develop a state variable model for friction and heat transfer across the interface between workpiece and tool.
  • To use the physical models as a basis to inform an intelligent analysis system for routine data collected from industrial process sensors in order to tune the model for composition and prior processing variables.
  • To encourage the use of the techniques developed for thermomechanical processing of metals for other materials systems.
  • To provide a range of seminars, short courses and publications for disseminating the understanding, knowledge and techniques developed in IMMPETUS.
In Focus

Systematic Ductile Damage Parameter Identification Using 3D CAFE Model

Micromechanical modelling of damage and fracture makes it possible to assess the integrity of structure not only in small scale yielding conditions but also in conditions where large scale plasticity exists..........

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