Proceedings of the First International Conference on Combinatorial and Optimization, ICCAP 2021, December 7-8 2021, Chennai, India

Research Article

Acoustic Emission Studies on Composite Eliptic Spring Elements

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  • @INPROCEEDINGS{10.4108/eai.7-12-2021.2314501,
        author={Subramanian  M and Niresh  J},
        title={Acoustic Emission Studies on Composite Eliptic Spring Elements},
        proceedings={Proceedings of the First International Conference on Combinatorial and Optimization, ICCAP 2021, December 7-8 2021, Chennai, India},
        publisher={EAI},
        proceedings_a={ICCAP},
        year={2021},
        month={12},
        keywords={ae udr wrm},
        doi={10.4108/eai.7-12-2021.2314501}
    }
    
  • Subramanian M
    Niresh J
    Year: 2021
    Acoustic Emission Studies on Composite Eliptic Spring Elements
    ICCAP
    EAI
    DOI: 10.4108/eai.7-12-2021.2314501
Subramanian M1,*, Niresh J1
  • 1: PSG College of Technology
*Contact email: sriisubbumani@gmail.com

Abstract

Composite Elliptic spring elements were subjected to AE studies. The AE studies clearly indicate the nature of fatigue damage growth. The spring elements started emitting acoustic waves from the very beginning of the fatigue tests. The analysis of characteristic curves of AE signal showed a burst type emission during the initial stages of fatigue. The AE signal parameters of UDR/WRM laminate type-1 spring elements reach their peak at around 27,000cycles. During this period continuous type of AE signals were observed. This continuous type signals could consist of numerous infinite burst type emission and these kinds of signals are different from the burst type signals recorded during the early part of the fatigue life. Once the peak is crossed some continuous and some burst type emission have been observed.