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Evaluating the Integrity of High-Density Polyethylene Storage Tanks
https://orcid.org/0000-0002-0529-5026
https://orcid.org/0000-0002-0320-4418
https://orcid.org/0000-0003-1281-9825
https://orcid.org/0000-0001-6699-2020
Failure of high-density polyethylene (HDPE) aboveground storage tanks (ASTs) causes numerous environmental, ecological, and economic problems. Therefore, it is necessary to routinely inspect the integrity of ASTs to identify the potential defects and act before a catastrophic failure happens. This study investigated the feasibility of using infrared thermography (IRT) for routine HDPE AST inspections and how weathering impacts the properties of HDPE. Moreover, the factors affecting the IRT’s accuracy for defect detection were researched, and it was attempted to determine the minimum levels of defect detection for each weather circumstance. This study investigated the potential areas for tank failure for close inspection. Results showed that IRT is efficient in detecting shallow defects within the outer half of the wall. The smallest detectable defect size was 2.8 mm, which varied in different measurements depending on the interaction of sample geometry, initial thermal gradient, and defect location.
Evaluating the Integrity of High-Density Polyethylene Storage Tanks
https://orcid.org/0000-0002-0529-5026
https://orcid.org/0000-0002-0320-4418
https://orcid.org/0000-0003-1281-9825
https://orcid.org/0000-0001-6699-2020
Failure of high-density polyethylene (HDPE) aboveground storage tanks (ASTs) causes numerous environmental, ecological, and economic problems. Therefore, it is necessary to routinely inspect the integrity of ASTs to identify the potential defects and act before a catastrophic failure happens. This study investigated the feasibility of using infrared thermography (IRT) for routine HDPE AST inspections and how weathering impacts the properties of HDPE. Moreover, the factors affecting the IRT’s accuracy for defect detection were researched, and it was attempted to determine the minimum levels of defect detection for each weather circumstance. This study investigated the potential areas for tank failure for close inspection. Results showed that IRT is efficient in detecting shallow defects within the outer half of the wall. The smallest detectable defect size was 2.8 mm, which varied in different measurements depending on the interaction of sample geometry, initial thermal gradient, and defect location.
Evaluating the Integrity of High-Density Polyethylene Storage Tanks
https://orcid.org/0000-0002-0529-5026
https://orcid.org/0000-0002-0320-4418
https://orcid.org/0000-0003-1281-9825
https://orcid.org/0000-0001-6699-2020
Failure of high-density polyethylene (HDPE) aboveground storage tanks (ASTs) causes numerous environmental, ecological, and economic problems. Therefore, it is necessary to routinely inspect the integrity of ASTs to identify the potential defects and act before a catastrophic failure happens. This study investigated the feasibility of using infrared thermography (IRT) for routine HDPE AST inspections and how weathering impacts the properties of HDPE. Moreover, the factors affecting the IRT’s accuracy for defect detection were researched, and it was attempted to determine the minimum levels of defect detection for each weather circumstance. This study investigated the potential areas for tank failure for close inspection. Results showed that IRT is efficient in detecting shallow defects within the outer half of the wall. The smallest detectable defect size was 2.8 mm, which varied in different measurements depending on the interaction of sample geometry, initial thermal gradient, and defect location.
Evaluating the Integrity of High-Density Polyethylene Storage Tanks
J. Mater. Civ. Eng.
Behravan, Amir (author) / Tran, Thien Q. (author) / Hernandez, Alan (author) / deJong, Matthew M. (author) / Brand, Alexander S. (author)
2023-05-01
Article (Journal)
Electronic Resource
English
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