Application of Different X-ray Techniques to Improve In-Service Carbon Fiber Reinforced Rope Inspection

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Application of Different X-ray Techniques to Improve In-Service Carbon Fiber Reinforced Rope Inspection. / Schumacher, David; Antin, Kim-Niklas; Zscherpel, Uwe; Vilaça, Pedro.

In: Journal of Nondestructive Evaluation, Vol. 36, No. 4, 62, 01.12.2017.

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@article{62ab8c278aba426d82527f261e171f28,
title = "Application of Different X-ray Techniques to Improve In-Service Carbon Fiber Reinforced Rope Inspection",
abstract = "Carbon fiber reinforced polymer ropes are gaining in significance in the fields of civil engineering and hoisting applications. Thus, methods of non-destructive testing (NDT) need to be developed and evaluated with respect to new challenges and types of defects. Particularly important is the development of in-service testing solutions which allow the integration in global online monitoring systems. Conventional methods like electrical resistivity or strain measurements using optical fibers are already in use. This study investigates the possibility of using various X-ray techniques to increase the reliability and significance of NDT and their applicability to in-service testing. Conventional film radiography is the most common technique; however, even after image enhancement of the digitized film, this technique lacks contrast sensitivity and dynamic range compared to digital detector array (DDA) radiography. The DDA radiography is a highly sensitive method; yet, the limitation is that it delivers 2D images of 3D objects. By the use of co-planar translational laminography the detectability of planar defects is superior to 2D methods due to multiple projection angles. Apart from this, it can be used on-site due to a rather simple setup and robust equipment. In this work two photon counting detectors (PCD) with different sensor materials (Si and CdTe) were used. The results show that the resolution and defect recognition is lower in case of DDA radiography and laminography using PCDs compared to high-resolution computed tomography. However, the DDA radiography and laminography are sensitive enough to both fiber breakage and delaminations and can be significantly advantageous in terms of measurement time and adaptability for on-site monitoring.",
keywords = "Carbon fiber reinforced polymer, Co-planar translational laminography, Computed tomography, Digital radiography, Photon counting detectors, Rope, X-ray imaging",
author = "David Schumacher and Kim-Niklas Antin and Uwe Zscherpel and Pedro Vila{\cc}a",
year = "2017",
month = "12",
day = "1",
doi = "10.1007/s10921-017-0441-5",
language = "English",
volume = "36",
journal = "Journal of Nondestructive Evaluation",
issn = "0195-9298",
publisher = "Springer New York",
number = "4",

}

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TY - JOUR

T1 - Application of Different X-ray Techniques to Improve In-Service Carbon Fiber Reinforced Rope Inspection

AU - Schumacher, David

AU - Antin, Kim-Niklas

AU - Zscherpel, Uwe

AU - Vilaça, Pedro

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Carbon fiber reinforced polymer ropes are gaining in significance in the fields of civil engineering and hoisting applications. Thus, methods of non-destructive testing (NDT) need to be developed and evaluated with respect to new challenges and types of defects. Particularly important is the development of in-service testing solutions which allow the integration in global online monitoring systems. Conventional methods like electrical resistivity or strain measurements using optical fibers are already in use. This study investigates the possibility of using various X-ray techniques to increase the reliability and significance of NDT and their applicability to in-service testing. Conventional film radiography is the most common technique; however, even after image enhancement of the digitized film, this technique lacks contrast sensitivity and dynamic range compared to digital detector array (DDA) radiography. The DDA radiography is a highly sensitive method; yet, the limitation is that it delivers 2D images of 3D objects. By the use of co-planar translational laminography the detectability of planar defects is superior to 2D methods due to multiple projection angles. Apart from this, it can be used on-site due to a rather simple setup and robust equipment. In this work two photon counting detectors (PCD) with different sensor materials (Si and CdTe) were used. The results show that the resolution and defect recognition is lower in case of DDA radiography and laminography using PCDs compared to high-resolution computed tomography. However, the DDA radiography and laminography are sensitive enough to both fiber breakage and delaminations and can be significantly advantageous in terms of measurement time and adaptability for on-site monitoring.

AB - Carbon fiber reinforced polymer ropes are gaining in significance in the fields of civil engineering and hoisting applications. Thus, methods of non-destructive testing (NDT) need to be developed and evaluated with respect to new challenges and types of defects. Particularly important is the development of in-service testing solutions which allow the integration in global online monitoring systems. Conventional methods like electrical resistivity or strain measurements using optical fibers are already in use. This study investigates the possibility of using various X-ray techniques to increase the reliability and significance of NDT and their applicability to in-service testing. Conventional film radiography is the most common technique; however, even after image enhancement of the digitized film, this technique lacks contrast sensitivity and dynamic range compared to digital detector array (DDA) radiography. The DDA radiography is a highly sensitive method; yet, the limitation is that it delivers 2D images of 3D objects. By the use of co-planar translational laminography the detectability of planar defects is superior to 2D methods due to multiple projection angles. Apart from this, it can be used on-site due to a rather simple setup and robust equipment. In this work two photon counting detectors (PCD) with different sensor materials (Si and CdTe) were used. The results show that the resolution and defect recognition is lower in case of DDA radiography and laminography using PCDs compared to high-resolution computed tomography. However, the DDA radiography and laminography are sensitive enough to both fiber breakage and delaminations and can be significantly advantageous in terms of measurement time and adaptability for on-site monitoring.

KW - Carbon fiber reinforced polymer

KW - Co-planar translational laminography

KW - Computed tomography

KW - Digital radiography

KW - Photon counting detectors

KW - Rope

KW - X-ray imaging

UR - http://www.scopus.com/inward/record.url?scp=85028337460&partnerID=8YFLogxK

U2 - 10.1007/s10921-017-0441-5

DO - 10.1007/s10921-017-0441-5

M3 - Article

VL - 36

JO - Journal of Nondestructive Evaluation

JF - Journal of Nondestructive Evaluation

SN - 0195-9298

IS - 4

M1 - 62

ER -

ID: 15812036