Author
Hangil You
Bio: Hangil You is an academic researcher from Seoul National University. The author has contributed to research in topics: Camber (aerodynamics) & Mechanoluminescence. The author has an hindex of 4, co-authored 8 publications receiving 30 citations.
Papers
More filters
TL;DR: A new concept of a gripper pin structure is proposed for an aircraft morphing wing that can decouple in-plane stiffness from out-of- plane stiffness.
Abstract: In this paper, a new concept of a gripper pin structure is proposed for an aircraft morphing wing that can decouple in-plane stiffness from out-of-plane stiffness. There has been a pressing need fo...
13 citations
TL;DR: In this paper, a novel approach to enhance the mechanoluminescence (ML) sensitivity of composite made with epoxy resin and strontium aluminate co-doped with europium ions and dysprosium was presented.
Abstract: In this paper, we present a novel approach to enhance the mechanoluminescence (ML) sensitivity of composite made with epoxy resin and strontium aluminate co-doped with europium ions and dysprosium ...
13 citations
TL;DR: In this paper, design criteria are proposed for an aircraft morphing wing skin and conventional lattice structures are evaluated against the design criteria.
Abstract: In this paper, design criteria are proposed for an aircraft morphing wing skin and conventional lattice structures are evaluated against the design criteria. Although the structural deformation and...
10 citations
TL;DR: In this article, a stochastically coupled thermo-chemical and viscoelastic model was proposed and compared with the cure-induced residual stresses and distortions between various models.
Abstract: This paper proposes a stochastically coupled thermo-chemical and viscoelastic model and provides new insights from comparisons of the cure-induced residual stresses and distortions between various ...
8 citations
TL;DR: In this article, a series of novel algorithms for microstructure reconstruction based on constituent morphologies is proposed, which can generate statistically equivalent representative volume elements (RVE) from shape repository consisting of the actual particles from micro-computed tomography (CT) images.
7 citations
Cited by
More filters
TL;DR: In this article, a review of the additive manufacturing of structural materials is presented, including multi-material additive manufacturing (MMa-AM), multi-modulus AM (MMo-AM) and multi-scale AM (MSc-AM).
Abstract: Additive manufacturing (AM), also known as three-dimensional (3D) printing, has boomed over the last 30 years, and its use has accelerated during the last 5 years AM is a materials-oriented manufacturing technology, and printing resolution versus printing scalability/speed trade-off exists among various types of materials, including polymers, metals, ceramics, glasses, and composite materials Four-dimensional (4D) printing, together with versatile transformation systems, drives researchers to achieve and utilize high dimensional AM Multiple perspectives of the AM of structural materials have been raised and illustrated in this review, including multi-material AM (MMa-AM), multi-modulus AM (MMo-AM), multi-scale AM (MSc-AM), multi-system AM (MSy-AM), multi-dimensional AM (MD-AM), and multi-function AM (MF-AM) The rapid and tremendous development of AM materials and methods offers great potential for structural applications, such as in the aerospace field, the biomedical field, electronic devices, nuclear industry, flexible and wearable devices, soft sensors, actuators, and robotics, jewelry and art decorations, land transportation, underwater devices, and porous structures
194 citations
02 Aug 2020
TL;DR: The scope of this work is to provide a critical review on the expectations about the morphing wing technology against the current open issues and showstoppers.
Abstract: The scope of this work is to provide a critical review on the expectations about the morphing wing technology against the current open issues and showstoppers.In synergy to other emerging and promi...
40 citations
TL;DR: A systematic and comprehensive review of strontium-aluminate-based luminescent materials' mechanoluminescence phenomena, mechanisms, material synthesis techniques, and related applications is presented in this paper .
Abstract: Mechanoluminescence, a smart luminescence phenomenon in which light energy is directly produced by a mechanical force, has recently received significant attention because of its important applications in fields such as visible strain sensing and structural health monitoring. Up to present, hundreds of inorganic and organic mechanoluminescent smart materials have been discovered and studied. Among them, strontium‐aluminate‐based materials are an important class of inorganic mechanoluminescent materials for fundamental research and practical applications attributed to their extremely low force/pressure threshold of mechanoluminescence, efficient photoluminescence, persistent afterglow, and a relatively low synthesis cost. This paper presents a systematic and comprehensive review of strontium‐aluminate‐based luminescent materials’ mechanoluminescence phenomena, mechanisms, material synthesis techniques, and related applications. Besides of summarizing the early and the latest research on this material system, an outlook is provided on its environmental, energy issue and future applications in smart wearable devices, advanced energy‐saving lighting and displays.
21 citations
TL;DR: Performance comparison between the polymorphing wing and the baseline wing (non-Morphing) shows that chord morphing improves aerodynamic efficiency at low angles of attack while camber morphhing improves efficiency at high angles ofAttack.
20 citations