Mechanical Integrity of Energy Systems  
High Temperature Integrity
Elektromechanische Werkstoffsysteme

Mechanical Integrity of Energy Systems

The development of efficient and reliable energy systems requires an understanding of the mechanical behaviour of materials.  Mechanical models are essential to optimize design, to understand and predict failure of mechanical parts, and to thus ensure the integrity and reliability of mechanical components. Classical, but for many applications still unresolved questions reside in the definition of equations that describe the non-linear, time and history dependent force-deformation behaviour of materials (constitutive modelling, continuum mechanics) as well as the service history dependent deterioration of materials (damage mechanics), and in the development of analytical and numerical models of the response of complex systems involving adaptive materials and structures. We investigate these phenomena for applications of existing and new high temperature materials, vibration damping, inspection and health monitoring in energy technologies and transportation


High Temperature Integrity

The High Temperature Integrity group (HTIG) was formed in 2006 to develop and provide state-of-the art high temperature mechanical design, assessment and remining life solutions underpinned by fundamental scientific research. Expertise is founded on over 40 years combined experience of the power generation industry, with the scope of this scientific and technological knowledge base now extended to energy, transportation and other sectors, with a focus on:

  • Specialist analysis and modelling of high temperature material property data and
  • Defect-free and defect assessment of high temperature components and structures

Underpinned by the results of:
- Advanced high temperature testing, and
- Material structure and high temperature damage
  condition assessment

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Electro-mechanical Materials Systems

Active Materials, such as piezoelectric, dielectric elastomers and others, allow for the exchange of power between mechanical and the electrical energy domain. By virtue of this property, the mechanical response of structures to applied loads can be adapted to different operational conditions, to improve the mechanical integrity of energy systems.

We are interested in the direct electrostatic coupling in variable stiffness and variable damping multi-layer structures (EBLs) as well as in dielectric elastomer actuators (DEAs).

We use the piezoelectric effect in PZT ceramics to develop composite structures with integrated vibration damping capabilities.

Our activities span from understanding the interaction between solid matter and electrostatic fields to quantifying the effect of different damping mechanisms on the dynamic behavior of structures.

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Contact Details

Head of Laboratory: Prof. Dr. Edoardo Mazza
Deputy Head of Laboratory: Dr. Stuart Holdsworth
Secretary: Beate Fonfé
Fax: +41 58 765 11 22

 

 

 

 

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