Andreas Krenz
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Andreas Krenz has a total of 22 co-authors. Here are the top co-authors by number of shared publications:
- Andreas Fischer
University of Bremen, Bremen Institute for Metrology, Automation and Quality Science (BIMAQ), Bremen, Germany
1 shared publication - Andreas W. Momber
Muehlhan Holding GmbH, Hamburg, Germany
1 shared publication - Axel S. Herrmann
Faculty of Production Engineering, University of Bremen, Bibliothekstraße 1, 28359 Bremen, Germany
1 shared publication - Bernd Mayer
Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, 28359 Bremen, Germany
1 shared publication - Björn Maack
FIBRE -Faserinstitut Bremen e.V Am Biologischen Garten 2 28359 Bremen Germany
1 shared publication - Catherine Lester
Fraunhofer Institute for Wind Energy Systems IWES, 27572 Bremerhaven, Germany
1 shared publication
Latest Publications
- Top Cited Papers
- 30 January 2026
- Published by Elsevier in Composites Part B: Engineering
- Vol. 315
A review of technical challenges and research gaps to address permeability controls in cryogenic composite hydrogen tanks
- 30 January 2026
- Published by Elsevier in Composites Part B: Engineering
- Vol. 315
Top Cited PapersA review of technical challenges and research gaps to address permeability controls in cryogenic composite hydrogen tanks
- Open Access
- 8 November 2022
- Published by MDPI AG in Applied Sciences
- Vol. 12 (22) , 11307
Investigation of the Causes of Premature Rain Erosion Evolution in Rotor Blade-like GFRP Structures by Means of CT, XRM, and Active Thermography
Premature rain erosion damage development at the leading edges of wind turbine rotor blades impair the efficiency of the turbines and should be detected as early as possible. To investigate the causes of premature erosion damage and the erosion evolution, test specimens similar to the leading edge of a rotor blade were modified with different initial defects, such as voids in the coating system, and impacted with waterdrops in a rain erosion test facility. Using CT and XRM with AI-based evaluation as non-destructive measurement methods showed that premature erosion arises from the initial material defects because they represent a weak point in the material composite. In addition, thermographic investigations were carried out. As it shows results similar to the two lab-based methods, active thermography has a promising potential for future in-situ monitoring of rotor blade leading edges.
- 8 November 2022
- Published by MDPI AG in Applied Sciences
- Vol. 12 (22) , 11307
Open AccessInvestigation of the Causes of Premature Rain Erosion Evolution in Rotor Blade-like GFRP Structures by Means of CT, XRM, and Active Thermography
Premature rain erosion damage development at the leading edges of wind turbine rotor blades impair the efficiency of the turbines and should be detected as early as possible. To investigate the causes of premature erosion damage and the erosion evolution, test specimens similar to the leading edge of a rotor blade were modified with different initial defects, such as voids in the coating system, and impacted with waterdrops in a rain erosion test facility. Using CT and XRM with AI-based evaluation as non-destructive measurement methods showed that premature erosion arises from the initial material defects because they represent a weak point in the material composite. In addition, thermographic investigations were carried out. As it shows results similar to the two lab-based methods, active thermography has a promising potential for future in-situ monitoring of rotor blade leading edges.
- 22 January 2022
- Published by Wiley in Materials and Corrosion
- Vol. 73 (6) , 897-902
The corrosion of carbon steel under delaminating repair coatings after long‐term marine splash zone exposure
Organic repair coatings are applied to repair areas of previously coated low‐carbon steel samples, and the samples are exposed to the splash zone in an offshore environment (Helgoland, North Sea) for 57 months. The volume loss of the steel underneath the delaminated coating is estimated with a three‐dimensional optical stripe line projection. The samples show a small variation in the degree of delamination (22%) only. The steel volume loss values, in contrast, range between 164 × 109 and 320 × 109 µm³, which is a variation of 196%. The degree of delamination of the scribed coatings does not mirror the corrosion of the steel underneath the delaminated sections. The coating with the widest degree of delamination exhibits the lowest steel volume loss due to corrosion. A good scribe performance of a coating is, therefore, no guarantee for a low corrosion loss nor for a low local corrosion depth in the steels to be protected.
- 22 January 2022
- Published by Wiley in Materials and Corrosion
- Vol. 73 (6) , 897-902
The corrosion of carbon steel under delaminating repair coatings after long‐term marine splash zone exposure
Organic repair coatings are applied to repair areas of previously coated low‐carbon steel samples, and the samples are exposed to the splash zone in an offshore environment (Helgoland, North Sea) for 57 months. The volume loss of the steel underneath the delaminated coating is estimated with a three‐dimensional optical stripe line projection. The samples show a small variation in the degree of delamination (22%) only. The steel volume loss values, in contrast, range between 164 × 109 and 320 × 109 µm³, which is a variation of 196%. The degree of delamination of the scribed coatings does not mirror the corrosion of the steel underneath the delaminated sections. The coating with the widest degree of delamination exhibits the lowest steel volume loss due to corrosion. A good scribe performance of a coating is, therefore, no guarantee for a low corrosion loss nor for a low local corrosion depth in the steels to be protected.