Abstract

The presentation will present a combine approach to advanced Structural Health Monitoring (SHM) and smart repair technologies with a probabilistic design philosophy, and hence to develop new maintenance concepts to reduce the direct operative costs without lowering the operational safety of a composite fuselage^1-7.

The main four parts of the presentation include:

• The design, manufacture and test of composite structures with dedicated SHM sensors giving reliable information on the health of the structure.
• The development of advanced technical capabilities for making the integration of sensors in modern composite structures practical and efficient so as to facilitate industrialization.
• The development of a methodology that comprises of advanced large scale modelling tools, validated by structural testing, which use/process the sensor signals to predict the residual strength of a damaged structure.
• The development and experimental validation of a probabilistic method that leads to reduction of maintenance costs during service life.

Figure 1: SHM Road Map¹.

Figure 2: Uncertainty quantification for SHM Damage Detection.

References

1. MH Aliabadi, ZS Khodaei. Structural Health Monitoring for Advanced Composite Structures Computational and Experimental Methods in Structures, World Scientific, 2018.
2. DG Bekas, Z Sharif-Khodaei, FMH Aliabadi. A smart multi-functional printed sensor for monitoring curing and damage of composite repair patch, Smart Materials and Structures 28 (8), 085029, 2019.
3. N Yue, MH Aliabadi. A scalable data-driven approach to temperature baseline reconstruction for guided wave structural health monitoring of anisotropic carbon-fibre-reinforced polymer structures Structural Health Monitoring 19 (5), 1487-1506, 2020.
4. N Yue, MH Aliabadi. Hierarchical approach for uncertainty quantification and reliability assessment of guided wave-based structural health monitoring, Structural Health Monitoring, 147592172094064, 2020.
5. Ilias N. Giannakeas, Fatemeh Mazaheritorei, Omar Bacarreza, Zahra Sharif Khodaei and Ferri M. H. Aliabadi. Probabilistic Residual Strength Assessment of Smart Composite Aircraft Panels using Guided Waves, Reliability Engineering & System Safety, 2023.
6. N Yue, Z Sharif Khodaei, MH Aliabadi. Damage detection in large composite stiffened panels based on a novel SHM building block philosophy, Smart Materials and Structures 30 (4), 045004, 2021.
7. IN Giannakeas, ZS Khodaei, MHF Aliabadi. Structural Health Monitoring Cost Estimation of a Piezosensorized Aircraft Fuselage, Sensors 22 (5), 1771, 2022.

Location: Building 19, Level 3, Hall 1-2.