Determining the Depth of Occurrence of Defects in Multilayer PCM Structures by Acoustic Methods Based on the Mechanical Impedance Value

Chertishchev, V. Yu.; Бойчук, А С; Dikov, I.A.; Yakovleva, Svetlana; Generalov, A. S.

doi:10.1134/s1061830918080041

Cited by 3 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Na [ 23 ] used EMI technology to permanently connect the PZT transducer to the host structure for monitoring, and used EMI technology to create a field no-reference NDT method for detecting composite structure debonding. Chertishchev [ 24 ] demonstrated that the depth of defects in honeycomb structure can be effectively distinguished by the magnitude of mechanical impedance and the characteristic indication of cell walls on the C-scan of the entire object surface. However, the sensitivity of the impedance method decreases sharply with increasing skin stiffness or peel size.…”

Section: Introductionmentioning

confidence: 99%

Damage Imaging Identification of Honeycomb Sandwich Structures Based on Lamb Waves

Zhang

et al. 2023

Materials

View full text Add to dashboard Cite

In the field of structural health monitoring, Lamb Wave has become one of the most widely used inspection tools due to its advantages of wide detection range and high sensitivity. In this paper, a new damage detection method for honeycomb sandwich structures based on frequency spectrum and Lamb Wave Tomography is proposed. By means of simulation and experiment, a certain number of sensors were placed on the honeycomb sandwich plate to stimulate and receive the signals in both undamaged and damaged cases. By Lamb Wave Tomography, the differences of signals before and after damage were compared, and the damage indexes were calculated. Furthermore, the probability of each sensor path containing damage was analyzed, and the damage image was finally realized. The technology does not require analysis of the complex multimode propagation properties of Lamb Wave, nor does it require understanding and modeling of the properties of materials or structures. In both simulation and experiment, the localization errors of the damage conform to the detection requirements, thus verifying that the method has certain feasibility in damage detection.

show abstract

Section: Introductionmentioning

confidence: 99%

Damage Imaging Identification of Honeycomb Sandwich Structures Based on Lamb Waves

Zhang

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

A novel nondestructive testing method for honeycomb structure using acoustic band gap

Yuan

Liu

Han

et al. 2023

Mechanical Systems and Signal Processing

View full text Add to dashboard Cite

Experience of Using Acoustic Flaw Detectors Id-91m and Ad-60k in Assessing the Quality of Multilayer Structures

Uzkikh¹,

Iskhuzhin²,

Atavin³

2020

View full text Add to dashboard Cite

The article considers the experience of using acoustic flaw detectors ID-91M and AD-60K for non-destructive control of the continuity of filling gaps with Vixint-K18 sealant, quality control of composite material based on organoplastics and construction of boroaluminium composite materials. The analysis of publications on the issue under consideration is performed. A list of publications from 15 sources is presented. An analysis of the continuity of filling gaps with a sealant was carried out with the construction of diagrams of the distribution of signal amplitudes across the scanning zones. The measurement results are presented in the figures in the form of a color scheme by selected amplitude scale. The effect on the results of changes in the edge effect is shown, insufficient locality of the sensors used is noted. For structures made of composite materials based on organoplastics and boroaluminum material, dependences of signal amplitudes on the depth of imitators of defects of various sizes are constructed. A static analysis of the measurement results from each of the defect simulators is performed. Good reproducibility of the acoustic signal for specific simulators is shown. The dependences of the signal amplitudes on the layer thickness to the defect simulator are constructed for two different transducers (RSP-60 and SP-60). It is proposed that the SP-60 transducer with less sensitivity but with a monotonic characteristic will be used for a rough estimation of measurement results, and the RSP-60 transducer, with a higher sensitivity but with non-monotonic characteristic, will be used to refine the results. Studies have shown the effectiveness of using acoustic flaw detectors ID-91M and AD-60K with non-destructive testing of the quality of manufacturing a number of structures from multilayer composite materials. Based on the results of the studies, the optimal settings for flaw detectors for various types of controlled parts were selected, a non-destructive testing method for structures by the acoustic method was developed and certified, and metrological parameters of the method were evaluated.

show abstract

Determining the Depth of Occurrence of Defects in Multilayer PCM Structures by Acoustic Methods Based on the Mechanical Impedance Value

Cited by 3 publications

References 1 publication

Damage Imaging Identification of Honeycomb Sandwich Structures Based on Lamb Waves

Damage Imaging Identification of Honeycomb Sandwich Structures Based on Lamb Waves

A novel nondestructive testing method for honeycomb structure using acoustic band gap

Experience of Using Acoustic Flaw Detectors Id-91m and Ad-60k in Assessing the Quality of Multilayer Structures

Contact Info

Product

Resources

About