Youxuan Zhao

TL;DR: This study theoretically reveals that the low frequency S0 mode of Lamb waves can be used as the fundamental waves to quantitatively identify micro‐cracks in thin plates.

TL;DR: In this paper, a novel approach to control flexural waves in thin plates using metasurfaces constituted of an array of parallel arranged composite beams with their neutral planes the same as that of the host plate is presented.

TL;DR: In this article, the authors investigated the interfacial mechanical properties between GR functionalized with polymer molecular chains and a polyethylene (PE) matrix using molecular dynamics simulations and showed that grafting of short PE molecular chains on GR can significantly improve the interfacer shear strength and interfacial Mode-II fracture toughness in functionalized GR/PE nanocomposites.

TL;DR: It is shown that an A0‐mode wave can be generated by a pair of S0 and A0 mode waves only when mixing condition is satisfied, and mixing wave signals are capable of locating the damage zone.

TL;DR: In this paper, the authors proposed a novel method for locating and imaging contact delaminations in composite plates, using a network of PZT transducers and the nonlinear Lamb waves.