5 papers
Thermal diffusivity measurement based on evaporative cryocooling excitation: Theory and experiments
Pengfei Zhu, Hai Zhang, Stefano Sfarra +4
Photo-thermal methods for measuring thermal diffusivity inherently pose an ill-posed inverse problem, affected by factors such as sample thickness, heating or cooling time, and exc…
Real-Time Super-Resolution Imaging System Based on Zero-Shot Learning for Infrared Non-Destructive Testing
Pengfei Zhu, Ziang Wei, Ahmad Osman +4
Infrared thermography (IRT) and photothermal coherence tomography (PCT) exhibit potential in non-destructive testing and biomedical fields. However, the inevitable heat diffusion s…
Thermal diffusivity characterization of impacted composites using evaporative cryocooling excitation and inverse physics-informed neural networks
Pengfei Zhu, Hai Zhang, Stefano Sfarra +5
The thermal diffusivity measurement of impacted composites using pulsed methods presents an ill-posed inverse problem influenced by multiple factors such as sample thickness, cooli…
A novel IR-SRGAN assisted super-resolution evaluation of photothermal coherence tomography for impact damage in toughened thermoplastic CFRP laminates under room temperature and low temperature
Pengfei Zhu, Hai Zhang, Stefano Sfarra +4
Evaluating impact-induced damage in composite materials under varying temperature conditions is essential for ensuring structural integrity and reliable performance in aerospace, p…
Making neural networks understand internal heat transfer using Fourier-transformed thermal diffusion wave fields
Pengfei Zhu, Hai Zhang, Clemente Ibarra-Castanedo +2
Heat propagation is governed by phonon interactions and mathematically described by partial differential equations (PDEs), which link thermal transport to the intrinsic properties…