Acoustic Emission in Wide Composite Specimens

Jonathan J. Scholey; Paul D. Wilcox; C.K. Lee; Michael I. Friswell; M.R. Wisnom

doi:10.4028/www.scientific.net/AMR.13-14.325

Paper Titles

Application of Acoustic Emission for Monitoring the HVOF Thermal Spraying Process
p.291

Acoustic Emission Monitoring during Solidification Processes
p.299

Dynamic Behavior of Two Types of Martensitic Transformations in Cu-Al-Ni Shape Memory Alloy Single Crystal by Acoustic Emission Method
p.305

Correlation between Acoustic Emission and Internal Friction in Materials
p.313

Acoustic Emission in Wide Composite Specimens
p.325

AE Monitoring of CFRP Structure during Autoclave Processing
p.333

Damage Mechanisms in Loaded Aramid Composites by Means of Embedded PVDF Acoustic Emission Sensors
p.337

Detection of the Broken Wires in the Cables’ Hidden Parts (Anchorings) by Acoustic Emission
p.345

Acoustic Emission Monitoring of Leaks in Pipes for Transport of Liquid and Gaseous Media: A Model Experiment
p.351

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 13-14Acoustic Emission in Wide Composite Specimens

Acoustic Emission in Wide Composite Specimens

Abstract:

Acoustic emission (AE) is an attractive technique for the structural health monitoring (SHM) of aerospace systems. To reach its full potential in this role a quantitative approach must be adopted to study damage mechanisms in composite materials. In this paper, some of the practical issues regarding acoustic emission testing in composites are addressed. A model describing Lamb wave propagation through plates is described and used to make phase velocity and attenuation measurements in both aluminium and carbon fibre reinforced plastic plates. Results are then implemented in the frequency domain to conduct an experimental study of normal incidence Lamb wave reflections. Comparisons are made with finite element analysis (FEA) models with good results.