Pulse-echo NDT of adhesively bonded joints in automotive assemblies

Титов, С. А.; Maev, Roman Gr.; Bogachenkov, A. N.

doi:10.1016/j.ultras.2008.07.001

Cited by 51 publications

(22 citation statements)

References 15 publications

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“…This fact shows the significant potential that this method has for its implementation in remote industrial applications or portable devices of small size with low computational and energy capabilities. [9] Square difference between a reference signal and the measured signal O(n²) [8] Square difference between a reference signal and the measured signal O(n²) [5] Division between the measured signal and an echo reference signal O(n²) [13,14] Exponential curve fitting to the reverberations of the received signal O(C n ) [19] Least square regression O(n ) [27] Multiplication of the magnitudes of the FFT of two received signals O(n²) [28] Least square regression O(n ) [21] Division between the measured signal and a reference signal O(n²)…”

Section: Discussionmentioning

confidence: 99%

“…In [8], [9] is used a reference signal and through comparisons and subtractions over the received signal, it can be estimated the effect of the acoustic impedance or the acoustic impedance itself, in order to recognize the presence of adhesive between metal sheets. These reference signals are taken from metal sheets without adhesive or with a thick sheet of adhesive.…”

Section: A Methods For the Measurement Of The Acoustic Impedance Or mentioning

confidence: 99%

“…One significant application is the determination of the condition of aluminum or steel sheets bonded by adhesive [5], [6], [7], [8], [9], [10], [11]. In the energy sector, some methods for the ultrasonic inspection of pipelines are based on the acoustic impedance [12], [13], [14].…”

Section: Introductionmentioning

confidence: 99%

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Peniel method for the automation of the ultrasonic monitoring based on the acoustic impedance

España¹,

Builes²,

Bedoya³

2013

2013 IEEE 8th Conference on Industrial Electronics and Applications (ICIEA)

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The industrial processes continuously require of better technologies which let to improve the effectiveness, efficiency and quality of their actions. One method to achieve this is based on the monitoring of the obtained sample or the industrial process itself. In this article is addressed the monitoring and the inspection of industrial products and processes through ultrasonic systems which analyze the behavior of the acoustic impedance. Some of the more important applications are in sectors such as energy, chemicals, aerospace, automobile, food, construction, among others. Although, the wide potential of this technique has been limited by the computational requirements of the algorithms associated with it, requiring of significant computing systems or devices, which is an obstacle for their implementation in small sensor systems. In this work is illustrated a novel signal processing method called Peniel, which has low computing requirements and has a significant circuital simplicity. This method was successfully implemented in a microcontroller of low computational capabilities.

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Section: Discussionmentioning

confidence: 99%

Section: A Methods For the Measurement Of The Acoustic Impedance Or mentioning

confidence: 99%

See 1 more Smart Citation

Peniel method for the automation of the ultrasonic monitoring based on the acoustic impedance

España¹,

Builes²,

Bedoya³

2013

2013 IEEE 8th Conference on Industrial Electronics and Applications (ICIEA)

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“…With the rapid development of fiber-reinforced polymer (FRP) composites industry, the adhesive bonding technique has been increasingly used in the field of composites, such as wind power, 1-3 civil engineering, 4-6 automotive, [7][8][9] and aircraft industries. [10][11][12][13] Compared to traditional mechanical connections (rivet, screw, etc.…”

Section: Introductionmentioning

confidence: 99%

Acoustic emission behaviors and damage mechanisms of adhesively bonded single-lap composite joints with adhesive defects

Zhou

Liu

et al. 2014

Journal of Reinforced Plastics and Composites

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Acoustic emission (AE) technology is widely applied for monitoring the damage of materials and structures. In this work, tensile tests were carried out to investigate the shear properties of adhesively bonded single-lap composite joints with adhesive defects. AE technology was used to evaluate the damage progress in real time. Besides, linear AE source location was also performed to study the damage initiation and propagation. Results show that the shear strength of adhesively bonded single-lap composite joints reduces as a result of the defects in the adhesive layers. Adhesion failure is found to be the dominant failure mode and most of the damage initiates and propagates at the edge of the adhesive layers and aggregates around the defects in the adhesive layer. Furthermore, the AE relative energy, amplitude distribution, cumulative hits and duration time are related to the damage process. The linear AE source location results are in consistent with the initiation and propagation of shear damage. For the adhesive joints with defects, AE signals with the amplitude from 60 to 80 dB increase at the evolution stage. It is suggested that the dynamic characteristics of AE signals can be effectively used to describe the damage mechanisms of adhesive bonded structure for composites.

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“…For the testing of even adhesive bondings ultrasonic systems, such as single probes and phased array systems, are commonly discussed in the literature [15][16][17]. These handheld systems are not sufficient for industrial inline applications.…”

mentioning

confidence: 99%

An automated non-destructive testing system for seam bondings in automotive serial production

Klausing

Heuer

2017

Appl Adhes Sci

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Pulse-echo NDT of adhesively bonded joints in automotive assemblies

Cited by 51 publications

References 15 publications

Peniel method for the automation of the ultrasonic monitoring based on the acoustic impedance

Peniel method for the automation of the ultrasonic monitoring based on the acoustic impedance

Acoustic emission behaviors and damage mechanisms of adhesively bonded single-lap composite joints with adhesive defects

An automated non-destructive testing system for seam bondings in automotive serial production

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