The application of optical fiber sensors in advanced fiber reinforced composites. Part 3: Strain, temperature and health monitoring

  • T. Liu
  • G. F. Fernando
Part of the Optoelectronics, Imaging and Sensing Series book series (OISS, volume 3)


The virtues of advanced fiber-reinforced composites (AFRCs) were highlighted in the previous chapters. A major concern with the use of AFRCs is the detection of damage within these materials. AFRCs can sustain significant internal damage before the nature of the damage is visible on the surface. In general, this is because it is the surface which is opposite to the impact surface, i.e. the tensile face which sustains the bulk of the damage. With reference to aerospace structures, impact damage can be induced by bird-strikes, damage from debris and accidental impacts from tools being dropped on the structure. In the case of fatigue damage, the design criteria which are used for these materials ensure that the operating loads are well below those required to initiate damage. However, an issue to note is that aerospace structures may be under a state of dynamic stress when the impact event takes place. There is sufficient evidence now to suggest that the damage mechanics when a composite is impacted under load are different, and the degree of damage is more significant, when compared with conventional impact testing [1]. It is also worth bearing in mind that expensive sensor systems may not be a prudent investment if the sensor is damaged when it receives the first impact.


Acoustic Emission Health Monitoring Damage Detection Impact Damage Strain Sensor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • T. Liu
  • G. F. Fernando

There are no affiliations available

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