Imperial College London

DrZahraSharif Khodaei

Faculty of EngineeringDepartment of Aeronautics

Reader in Structural Integrity
 
 
 
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Contact

 

+44 (0)20 7594 5116z.sharif-khodaei

 
 
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Location

 

329City and Guilds BuildingSouth Kensington Campus

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Summary

 

Materials in Action - AERO97068

Aims

The aims of this course are to outline the procedures necessary to select a material for a given purpose.

·         To define the purpose of the item chosen for design.

·         To specify the operating regime (loads, environment etc.) of the chosen item.

·         To calculate the stresses and strains caused by the operating regime.

·         To list the relevant properties (chemical, physical, mechanical etc.) of candidate materials.

·         To consider environmental factors during the material selection process

·         To teach methods for materials selection under conflicting requirements and penalty functions

·         To list possible selection criteria and choose the criterion most appropriate to the circumstances.

·         To consider the effect of shape when selecting a material

·         To evaluate the candidate materials against the selected criteria.

·         To use ideas and principles from other lecture courses as an essential part of selecting a material.

·         To teach advanced issues regarding polymer composites, including failure

·         To present an overview of new and emerging materials, including nanomaterials and multifunctionality.

·         To teach the mechanics of cellular solids and design with sandwich structures

·         To teach on structural health monitoring of aerospace materials

·         To introduce non-destructive evaluation techniques for aerospace materials

Role

Lecturer

Structures 2 - AERO50008

Aims

This module builds on Mechanics and Structures 1, and provides a basis for Structures 3. It introduces matrix methods in overall structural analysis (stiffness and flexibility methods), structural dynamics (equations of motion for multi degree-of-freedom problems using force equilibrium, Hamilton’s principle and Lagrange’s equation; free vibrations; periodic and transient loads; modal analysis; damping; continuum) and buckling (stability analysis; buckling of struts; critical buckling load; failure envelopes).

Role

Lecturer

Stress Analysis and Impact - AERO97020

Aims

To describe the types of damage that can occur in laminated composites as a result of transverse impact.  To distinguish between small and large mass impact responses. To estimate the peak impact forces and delamination damage thresholds, and the properties affecting these parameters.  To review the local and overall structural response mechanisms of composite laminates after impact loading.  To identify failure mechanisms in impact damaged composites and to model their response under tensile and compressive loading

To introduce a series of significant aspects in the stress analysis of laminated composite components: analysis of laminated beams, free edge stresses in laminates, effect of holes on the strength of laminates and the buckling of laminated plates.
 

Role

Lecturer

Materials in Action - AERO96010

Aims

The aims of this course are to outline the procedures necessary to select a material for a given purpose.

·         To define the purpose of the item chosen for design.

·         To specify the operating regime (loads, environment etc.) of the chosen item.

·         To calculate the stresses and strains caused by the operating regime.

·         To list the relevant properties (chemical, physical, mechanical etc.) of candidate materials.

·         To consider environmental factors during the material selection process

·         To teach methods for materials selection under conflicting requirements and penalty functions

·         To list possible selection criteria and choose the criterion most appropriate to the circumstances.

·         To consider the effect of shape when selecting a material

·         To evaluate the candidate materials against the selected criteria.

·         To use ideas and principles from other lecture courses as an essential part of selecting a material.

·         To teach advanced issues regarding polymer composites, including failure

·         To present an overview of new and emerging materials, including nanomaterials and multifunctionality.

·         To teach the mechanics of cellular solids and design with sandwich structures

·         To teach on structural health monitoring of aerospace materials

·         To introduce non-destructive evaluation techniques for aerospace materials

Role

Lecturer

Aircraft Structures - AERO96004

Aims

The structural principles developed in the second year are applied to thin-walled surface structures representative of parts of airframes.  These structures deform under transverse loads and are prone to instability under compressive or shear loading and the students will learn how to analyse the effect of such loads. Modern aircraft structures are frequently made of laminated composite materials and the course will give the basic theory for how to extend the theory of homogeneous plates to composite laminates.

Role

Lecturer

Composites 4 - AERO97049

Aims

Stress Analysis

To introduce a series of significant aspects in the stress analysis of laminated composite components: analysis of laminated beams, free edge stresses in laminates, effect of holes on the strength of laminates and the buckling of laminated plates.

Fracture

The lectures are designed to provide the students with a general background in fracture mechanics with particular reference to the concept of energy release. This basis is then used to examine the various standard test methods for delamination of composite laminates. Some discussion of the application of these data to design will be included. 

Fatigue
The overall aim of this course is to produce graduates with state of the art knowledge in the field of fatigue of composite materials and thus help them to gain employment where they will be able to utilise and apply the knowledge they have gained.  They should become adept in both practical and theoretical aspects of the subject and have the confidence to be able to use their knowledge for the good of themselves and their country.  

Environmental Effects

The overall aim of this course is to produce graduates with state of the art knowledge in the field of environmental behavior of composite materials and thus help them to gain employment where they will be able to utilise and apply the knowledge they have gained. They should become adept in both practical and theoretical aspects of the subject and have the confidence to be able to use their knowledge for the good of themselves and their country. 

Impact

To describe the types of damage that can occur in laminated composites as a result of transverse impact.  To distinguish between small and large mass impact responses. To estimate the peak impact forces and delamination damage thresholds, and the properties affecting these parameters.  To review the local and overall structural response mechanisms of composite laminates after impact loading.  To identify failure mechanisms in impact damaged composites and to model their response under tensile and compressive loading. 
 

Role

Lecturer