Non-Destructive Inspection of Impact Damage in Composite Aircraft Panels by Ultrasonic Guided Waves and Statistical Processing

Structural Health Monitoring (SHM) of Carbon Fiber Reinforced Polymers (CFRP) has become, recently, in a promising methodology for the field of Non-Destructive Inspection (NDI), specially based on Ultrasonic Guided Waves (UGW), particularly Lamb waves using Piezoelectric Transducers (PZT). However, the Environmental and Operational Conditions (EOC) perform an important role on the physical characteristics of the waves, mainly the temperature. Some of these effects are phase shifting, amplitude changes and time of flight (ToF) variations. In this paper, a compensation method for evaluating and compensating the effects of the temperature is carried out, performing a data-driven methodology to calculate the features from a dataset of typical temperature values obtained from a thermoset matrix pristine plate, with a transducer network attached. In addition, the methodology is tested on the same sample after an impact damage is carried out on it, using RAPID (Reconstruction Algorithm for Probabilistic Inspection of Damage) and its geometrical variant (RAPID-G) to calculate the location of the damage.

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Modeling of Ultrasonic Guided Waves in Hybrid Composite Structures for Non-destructive Testing Purposes using the Global-Local Method

AIAA Scitech 2021 Forum ◽

10.2514/6.2021-1082 ◽

2021 ◽

Author(s):

Steffen Tai ◽

Ajit Mal ◽

Jacob Rome ◽

Vinay K. Goyal

Keyword(s):

Hybrid Composite ◽

Composite Structures ◽

Guided Waves ◽

Ultrasonic Guided Waves ◽

Non Destructive Testing ◽

Destructive Testing ◽

Local Method ◽

Non Destructive

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Simulation of the Propagation Behaviors of Ultrasonic Guided Waves to Detect the Impact Damage in a CFRP Skin-Stringer Structure

The Proceedings of Mechanical Engineering Congress Japan ◽

10.1299/jsmemecj.2019.j40138p ◽

2019 ◽

Vol 2019 (0) ◽

pp. J40138P

Author(s):

Mengyi LIU ◽

Peiwen DENG ◽

Osamu SAITO ◽

Yoji OKABE ◽

Hideki SOEJIMA

Keyword(s):

Guided Waves ◽

Impact Damage ◽

Ultrasonic Guided Waves ◽

The Impact

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Non-Destructive Test of the Steel Bar by Using Piezoceramics Sheets

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.718-720.692 ◽

2013 ◽

Vol 718-720 ◽

pp. 692-697 ◽

Cited By ~ 2

Author(s):

Zhu Peng Zheng ◽

Ying Lei ◽

Xue Peng Cui ◽

Song Yu

Keyword(s):

Guided Waves ◽

Piezoelectric Ceramics ◽

Ultrasonic Guided Waves ◽

Destructive Test ◽

Steel Bar ◽

Non Destructive

Piezoelectric ceramics sheets are used to excite and receive ultrasonic guided waves in a steel bar. The multi-modes and disperse characteristics of guided waves within that are investigated theoretically and experimentally. The results show that ultrasonic guided waves can be generated and received by piezoelectric ceramics sheets which can be used to measure the length of the steel bar and detect the defection in it.

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Monitoring and Imaging of Bolted Steel Plate Joints Using Ultrasonic Guided Waves

Journal of Nondestructive Evaluation Diagnostics and Prognostics of Engineering Systems ◽

10.1115/1.4047191 ◽

2020 ◽

Vol 4 (1) ◽

Author(s):

Jay Kumar Shah ◽

Abhijit Mukherjee

Keyword(s):

Piezoelectric Ceramic ◽

Guided Waves ◽

Steel Plate ◽

Steel Structures ◽

Ultrasonic Waves ◽

Bolted Joints ◽

Ultrasonic Guided Waves ◽

Automated Method ◽

Non Destructive ◽

Joint Integrity

Abstract Steel structures with bolted joints are easily dismantled and repurposed. However, maintaining joint integrity is a challenge. This paper reports a non-destructive methodology to monitor steel bolted joints. Piezoelectric ceramic patches have been surface bonded in the joint for transmission and reception of guided ultrasonic waves. Both single and multiple bolted joints have been investigated. It has been demonstrated that the variation in acoustic impedance due at the bolt interface can be discerned and calibrated with bolt torque level. The recorded reflections from interfaces are used as inputs for a newly developed imaging algorithm. The proposed method has the potential to be a reference-free and fully automated method.

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Study on Ultrasonic Guided Waves in Fluid-Filled Pipes Surrounded by Water

Volume 2: Integrity Management; Poster Session; Student Paper Competition ◽

10.1115/ipc2006-10493 ◽

2006 ◽

Cited By ~ 1

Author(s):

Shijiu Jin ◽

Liying Sun ◽

Guichun Liu ◽

Yibo Li ◽

Hong Zhang

Keyword(s):

Guided Waves ◽

Guided Wave ◽

Ultrasonic Waves ◽

Ultrasonic Guided Waves ◽

Fluid Loading ◽

Inspection Method ◽

Ultrasonic Guided Wave ◽

Oil Company ◽

Non Destructive ◽

Good Agreement

A new non-destructive pipe inspection method, ultrasonic guided wave method as well as the comparison between ultrasonics and guided waves is introduced. An investigation of the guided ultrasonic waves traveling along pipes with fluid loading on the inside and outside of the pipe is described. The effect of inner and outer media has been researched by considering a steel pipe with air and water inside and outside the experimental pipe. Site experiment was carried out on a heating pipe in the resident area of Bohai Oil Company, China. A typical cylindrical guided wave, longitudinal guided wave was used to examine pipes with artificial defects and its propagation characteristics along the pipe were studied. Good agreement has been obtained between the experiments and predictions for pipes with different loading on the pipe.

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