Yannick Bernhardt

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About

Yannick Bernhardt is pioneering a transformative approach to nondestructive testing through his innovative work on resonant air-coupled emission (RACE). His primary research focus lies in developing advanced acoustic methods for defect detection and imaging in composite materials, with a particular emphasis on harnessing airborne sound waves for diagnostic purposes. Bernhardt’s major contribution is the introduction of a fundamentally new mode of acoustic emission—distinct from traditional contact-based methods—that leverages local damage resonance. In his highly cited 2021 paper, "Resonant Airborne Acoustic Emission for Nondestructive Testing and Defect Imaging in Composites" (13 citations), he demonstrates how standing wave vibrations within defects generate detectable acoustic waves in ambient air, enabling non-contact imaging. His foundational 2020 work, "Listening for Airborne Sound of Damage: A New Mode of Diagnostic Imaging" (8 citations), established the theoretical and practical framework for RACE, showing that resonant vibrations in damaged areas can be used to create diagnostic images without physical contact with the structure. This breakthrough has significant implications for aerospace, automotive, and infrastructure sectors, where early, non-invasive damage detection is critical. Bernhardt’s research represents a paradigm shift in acoustic emission testing, offering a safer, more accessible, and highly sensitive method for structural health monitoring.