3D printing‐enabled nanoparticle alignment: a review of mechanisms and applications

W Xu, S Jambhulkar, D Ravichandran, Y Zhu… - Small, 2021 - Wiley Online Library
Abstract 3D printing (additive manufacturing (AM)) has enormous potential for rapid tooling
and mass production due to its design flexibility and significant reduction of the timeline from …

Instabilities of thin films on a compliant substrate: Direct numerical simulations from surface wrinkling to global buckling

S Nikravesh, D Ryu, YL Shen - Scientific reports, 2020 - nature.com
For structures consisting of a thin film bonded to a compliant substrate, wrinkling of the thin
film is commonly observed as a result of mechanical instability. Although this surface …

Dynamic multifunctional devices enabled by ultrathin metal nanocoatings with optical/photothermal and morphological versatility

S Zeng, Z Yang, Z Hou, C Park… - Proceedings of the …, 2022 - National Acad Sciences
Inspired by the intriguing adaptivity of natural life, such as squids and flowers, we propose a
series of dynamic and responsive multifunctional devices based on multiscale structural …

Controlling and visualizing fracture of 2D crystals by wrinkling

S Feng, W Wang, S Wang, X Cui, Y Yang, F Xu… - Journal of the …, 2023 - Elsevier
Abstract Shaping two-dimensional (2D) crystals with well-defined edges along specific
directions remains technically challenging due to the intrinsic lattice discreteness and …

[HTML][HTML] Wrinkle, fold, and ridge patterns of thin films attached to a compliant substrate: Direct numerical simulations involving plastic yielding

S Nikravesh, YL Shen - Thin-Walled Structures, 2024 - Elsevier
Surface wrinkling is a frequently observed form of deformation instability when a thin film
bonded to a compliant substrate is under in-plane compression. In this study, a recently …

From surface microrelief to big wrinkles in skin: A mechanical in-silico model

P Chavoshnejad, S More, MJ Razavi - Extreme Mechanics Letters, 2020 - Elsevier
A major concern associated with skin, the largest organ of our body, is how to prevent it from
wrinkling and aging. Understanding the mechanics of skin wrinkling can provide useful …

Surface Wrinkling versus Global Buckling Instabilities in Thin Film‐Substrate Systems under Biaxial Loading: Direct 3D Numerical Simulations

S Nikravesh, D Ryu, YL Shen - Advanced Theory and …, 2022 - Wiley Online Library
When a thin film bonded to a compliant substrate is subject to in‐plane compressive loading,
wrinkles on the thin film may form as a consequence of deformation instability. The …

Plasticity-mediated deformation instabilities in thin film-compliant substrate systems: direct three-dimensional simulations

S Nikravesh, YL Shen - Journal of Materials Science, 2024 - Springer
Surface wrinkles driven by mechanical instability commonly form in thin-film structures
attached to a compliant substrate. In this study, a recently developed computational …

Instability driven surface patterns: Insights from direct three-dimensional finite element simulations

S Nikravesh, D Ryu, YL Shen - Extreme Mechanics Letters, 2020 - Elsevier
Surface patterns driven by mechanical instability commonly form in thin-film structures with a
compliant substrate. In this study a practical three-dimensional (3D) finite element modeling …

Evolution of thin-film wrinkle patterns on a soft substrate: direct simulations and the effects of the deformation history

S Nikravesh, YL Shen - Nanomaterials, 2022 - mdpi.com
Surface wrinkling instability in thin films attached to a compliant substrate is a well-
recognized form of deformation under mechanical loading. The influence of the loading …