An open dataset on Lamb wave propagation in composite panels under variable temperature conditions

This open-access dataset is based on an experimental campaign conducted betweenJune 2024 and March 2025 in Nantes, France, at Université Gustave Eiffel, withinthe framework of the European doctoral network USES2. This dataset is associatedwith a related article that will be presented at the EWSHM 2026 conference. The experiment was performed on an undamaged composite panel placed inside aclimatic chamber with a temperature varying from 20°C to 70°C, while humiditywas kept constant throughout the entire test. The wave source, developed in-houseat Université Gustave Eiffel, is referred to as Ondulys. The data acquisition systemperforms an interrogation every 5 minutes. The dataset includes both an Excel file containing the climatic chamber activity(temperature and humidity measurements) and the full set of acquired signals ingeophysical (.sg2) format. Additionally, the MATLAB scripts used for dataprocessing are provided and described in the following section. The author remains available for any further information regarding this dataset.The related article will be referenced and linked as soon as it becomes available.