Data set on ultrasonic guided waves in a composite overwrapped pressure vessel under variable operational conditions for the Open Guided Waves Platform
Jan Heimann, Daniel Lozano, H. El Moutaouakil, Octavio A. Márquez Reyes, Enes Savli, David Pöhlig, Jochen Moll, Peter Kraemer, Andreas Schütze, Jens Prager
Structural Health Monitoring (SHM) using ultrasonic-guided waves (UGWs) enables continuous monitoring of components with complex geometries and provides detailed information about their structural integrity and overall condition. Due to their intricated characteristics, UGWs are highly sensitive to material properties as well as environmental and operational factors such as temperature and pre-stress. To advance the development and validation of UGW-based SHM evaluation techniques, benchmark data sets are therefore essential for enabling transparent comparison of emerging algorithms. With the growing relevance of composite overwrapped pressure vessels (COPVs) in various industries, this work introduces a comprehensive open-access dataset of UGW measurements on a COPV, to be published on the Open Guided Waves platform. The COPV was placed in a high-pressure hydraulic system, and it was exposed to varying temperature and pressure levels to simulate realistic environmental and operational conditions. UGWs were excited and recorded using a distributed network of piezoelectric transducers attached to the surface of the specimen. Tests were repeated by introducing artificial and real damages on the vessel to evaluate their effect under similar conditions. The paper provides a brief overview of the experimental methodology, key results demonstrating the dataset’s scope and a short section on technical validation, including machine learning-based damage detection, and localisation.