Article
Engineering, Civil
Yuntong Du, Thomas Keller, Changping Song, Zhenqian Xiao, Linzhi Wu, Jian Xiong
Summary: This study presents a methodology for designing cylindrical origami with different patterns and cross-sectional shapes, and proves the foldability and developability of curved-crease patterns. It explores the relationships between 2D crease lines in a sheet and 3D spatial origami structures, paving the way for applications in engineering such as energy absorption.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Mechanical
Sen Wang, Jinshan Wu, Peng Yan, Hailin Huang, Bing Li, Rongqiang Liu
Summary: This paper proposes a planar deployable circular structure (DCS) based on the Miura-ori pattern, as well as the design of system parameters and an optimization model for the deploy/fold ratio. Another method for designing curved-surface DCS is proposed that is based on the parallel projection principle. Suitable numerical design methods for obtaining the vertices of planar and curved-surface DCSs are summarized. The actuation methods for planar and curved-surface deployable structures are presented. The feasibility of the proposed design approach is verified through fabrication of physical prototypes and deployment experiments.
MECHANISM AND MACHINE THEORY
(2023)
Article
Engineering, Civil
Hemant Sharma, S. H. Upadhyay
Summary: This research focuses on the geometric analysis and quasistatic behavior of toroidal folding patterns based on the four-fold line origami concept. It presents a sequential design process and a generalized design algorithm for developing toroidal origami structures. Experimental setups and methodologies are developed to investigate the quasistatic behavior of single and multi-story toroidal patterns.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Yucai Hu, Yexin Zhou, Haiyi Liang
Summary: This article presents a method for constructing generalized Miura-ori patterns that can approximate three-dimensional parametric surfaces while preserving the properties of standard Miura-ori. By placing vertices on the target surfaces and performing constrained optimization, rigid folding from the flat state to the target state with a single degree-of-freedom is achieved.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2021)
Article
Engineering, Mechanical
Diana Bolanos, Collin Ynchausti, Nathan Brown, Hunter Pruett, Jared Hunter, Brooklyn Clark, Terri Bateman, Larry L. Howell, Spencer P. Magleby
Summary: The Miura-ori pattern has favorable qualities for designing deployable space arrays, but also poses challenges such as thickness-accommodation, nesting, grounding, and deployment. It is important to address and mitigate these challenges when designing Miura-ori systems.
MECHANISM AND MACHINE THEORY
(2022)
Article
Engineering, Mechanical
Hunter T. Pruett, Abdul-Sattar Kaddour, Stavros V. Georgakopoulos, Larry L. Howell, Spencer P. Magleby
Summary: Trends in the aerospace industry drive the need for smaller, cheaper, yet high-gain antennas. This study presents a thick, flat-foldable origami design, called volume-efficient Miura-ori (VEMO), for deployable reflectarray antennas. By maximizing the surface area while meeting volume and aspect ratio constraints, the VEMO design offers an efficient solution for antenna applications.
EXTREME MECHANICS LETTERS
(2022)
Article
Mechanics
Chenjie Zhao, Ming Li, Xin Zhou, Tianming Liu, Jian Xing, Yan Chen, Xiao Zhang
Summary: In this paper, a deployable structure for a planar antenna with one degree of freedom and a flat reflection surface is proposed based on a double-layer Miura-ori pattern. The antenna folding scheme with rectangular facets is proposed and a deployable antenna mechanism with a flat reflection surface is accomplished. A kinematic model is established to analyze the kinematic characteristics and prove the equivalence of motion before and after changing the hinges. A compatible back frame for the planar antenna mechanism is designed and fabricated.
MECHANICS RESEARCH COMMUNICATIONS
(2023)
Article
Mechanics
Haotian Feng, Guanjin Yan, Pavana Prabhakar
Summary: This paper explores the impact of directional material properties on the mechanical responses of origami structures, focusing on the Miura-Ori structures. By studying carbon fiber reinforced polymer (CFRP) composites and the geometric parameters of Miura-Ori, the paper demonstrates that CFRP composites can achieve higher stiffness and Poisson's ratio than isotropic materials. Regression analysis reveals the relationship between geometric parameters and mechanical responses, leading to the discovery of optimal Miura-Ori structures. The research provides valuable insights for designing and optimizing origami structures incorporating composite materials.
COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
Qian Zhang, Xinyu Wang, Daniel Sang-hoon Lee, Jianguo Cai, Zheng Ren, Jian Feng
Summary: The paper investigates the design and kinematic behavior of a novel origami canopy, demonstrating its design process and performance evaluation results. It proposes a calculated method to determine geometry parameters with different constraint conditions for different target configurations. The study opens a novel avenue for the design of curved shapes using Miura-ori in various fields.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
Betul Kahramanoglu, Nese Cakici Alp
Summary: The paper presents a design for a responsive facade model based on origami principles that aim to enhance visual comfort for building occupants. The model features kinetic elements that reduce solar heat gain while maintaining visual comfort. To evaluate visual comfort, the study used a simulation model that considers key daylight performance metrics. The results showed that the proposed origami-based responsive facade outperforms the base scenario in terms of daylight performance enhancement.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Mathematics
Dylan C. Webb, Elissa Reynolds, Denise M. Halverson, Larry L. Howell
Summary: This article introduces a new design for smooth sheet attachment that can unfold simultaneously with zipper-coupled tubes to cover the entire surface without additional actuation, and it is compatible with asymmetric zipper-coupled tubes.
Article
Materials Science, Multidisciplinary
Yixin Wang, Jingwen Guo, Yi Fang, Xin Zhang, Hongyu Yu
Summary: In this study, electrospinning and paper folding techniques were utilized to fabricate an ultralight sound absorption metamaterial based on Miura-ori tessellation structure. By optimizing the parameters of Miura-ori shape and designing a stacked structure, efficient sound absorption was achieved in a broad frequency range.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Tomi Kankkunen, Jarkko Niiranen, Jarmo Kouko, Miia Palmu, Kirsi Peltonen
Summary: Sandwich structures with Miura-ori cores have been studied in aerospace industry, but this study focuses on the mechanical performance of planar, self-supporting Miura-ori structures under compressive loads. By analyzing the effects of geometric parameters and material orthotropy, the study provides a basis for structural design.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Engineering, Mechanical
Xiangxin Dang, Lu Lu, Huiling Duan, Jianxiang Wang
Summary: This paper systematically investigates the deployment kinematics of axisymmetric Miura origami and provides comprehensive guidance for the design of axisymmetric deployable structures based on origami principles.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Mechanical
Xi Zhang, Xiaodong Huang, Guoxing Lu
Summary: In this study, a novel perforated Miura-ori phononic structure (PMPS) is introduced, and the tunability of complete or partial bandgaps in specific directions is investigated. The validity of the bandgaps is verified through simulation and experimental measurement of sound transmission loss in a three-dimensional printed Miura-ori panel. The results demonstrate extensive bandgap tunability of PMPS with different design parameters during deployments and folds. Additionally, potential applications of PMPS, such as programmable acoustic waveguides, are demonstrated. Lightweight PMPSs offer an attractive alternative for designing tunable, programmable, and reconfigurable acoustic structures, including sound waveguides, sound barriers, and broadband wave tailors.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Yufan Cao, Xiangyu Wang, Huijing Yuan, Huiling Duan, Zhili Sun, Hongyuan Li, Pengyu Lv
Summary: This paper proposes a new method based on window deformation to estimate the velocity profile of near-wall flows, and further improves accuracy and reduces computational cost through a multi-pixel ensemble correlation method. The methods are validated through synthetic particle images and experiments.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2023)
Article
Mechanics
Guo-Qing Chen, Hongyuan Li, Pengyu Lv, Huiling Duan
Summary: This paper introduces a phase interface compression term into the multiphase lattice Boltzmann flux solver, achieving excellent interface maintenance. The compression term only operates in the interface region and is solved as the flux. The validation of the model through simulation of various problems confirms its validity and reliability.
Article
Chemistry, Physical
Shengyuan Peng, Yihan Wang, Xin Yi, Yifan Zhang, Ying Liu, Yangyang Cheng, Huiling Duan, Qing Huang, Jianming Xue
Summary: In this study, Cr2AlC single crystal samples were irradiated and their mechanical properties were measured. The results showed that new slip traces were activated after irradiation, and both the yield strength and Young's modulus decreased gradually with increasing irradiation doses, indicating a significant radiation softening effect. This softening effect may be the result of irradiation-induced vacancies, supported by DFT calculations. These findings suggest that MAX phases like Cr2AlC have excellent irradiation tolerance regarding mechanical properties and are promising candidate materials for advanced nuclear systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Jingyu Zhang, Shurong Ding, Huiling Duan
Summary: In this study, a cluster dynamics model is proposed to predict the irradiation deformation of hexagonal materials. The model describes the evolutions of point defects and defect clusters with the diffusion anisotropy of self-interstitial atoms. Nucleation and growth models for vacancy, interstitial, and vacancy dislocation loops are developed. Experimental data of irradiated Zr single crystals show good agreement with the simulated growth strains.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wenbin Liu, Yangyang Cheng, Haonan Sui, Jiaqi Fu, Huiling Duan
Summary: Intergranular fatigue crack nucleation has been found to frequently occur at high angle grain boundaries (HAGBs) but rarely at low angle GBs (LAGBs) during persistent slip band (PSB)-GB interactions. However, the understanding of the role of GB misorientation angles in GB fatigue cracking is limited. In this study, a theoretical framework based on the competition between dislocation transmission and GB cracking is established to investigate this phenomenon. The results show that HAGBs usually have higher resistance to dislocation transmissions, leading to more significant dislocation pile-up and stress concentration, which facilitates GB crack nucleation. The study also emphasizes the importance of GB fatigue damage accumulation and its association with PSB extrusion growth in promoting GB crack nucleation.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2023)
Article
Mechanics
Baorui Xu, Hongyuan Li, Xiaochao Liu, Yaolei Xiang, Pengyu Lv, Xiangkui Tan, Yaomin Zhao, Chao Sun, Huiling Duan
Summary: Investigating the effect of micro-grooves on drag reduction in Taylor-Couette flow, it was found that the micro-grooves reduce the torque and hence drag in wave vortex flow and modulated wavy vortices flow. However, in turbulent Taylor vortices flow, drag reduction diminishes and eventually turns into drag increase with increasing Reynolds number. Particle image velocimetry measurements revealed that the weakening of large-scale Taylor vortices leads to drag reduction, while roughness effect results in drag increase.
Article
Multidisciplinary Sciences
Feng Zhao, Wenbin Liu, Haonan Sui, Jiaqi Fu, Yangyang Cheng, Jingyu Zhang, Huiling Duan
Summary: In this work, a transformation kinetics model considering the effect of irradiation hardening, shear band evolution and the role of irradiation-induced voids is developed, and a crystal plasticity framework incorporating the newly developed model is established. The framework is capable of capturing the accelerated evolution of martensite volume fraction and simulating two post-irradiation phenomena observed in experiments. This study is one of the first attempts at theoretically modeling the deformation-induced martensitic transformation in irradiated materials, and has the potential to benefit the application of irradiation in tailoring the martensitic transformation behavior.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2023)
Article
Chemistry, Physical
Hao Wang, Jingyu Zhang, Huashan Shang, Aixue Sha, Yangyang Cheng, Huiling Duan
Summary: In this study, room-temperature pre-tension experiments and subsequent creep tests were conducted on powder metallurgy Ni-based superalloy FGH96. It was found that increasing amounts of pre-strain led to progressive increases in steady-state creep rate and creep stain. The morphology and distribution of γ' precipitates were not significantly affected by pre-strain, but the dislocation density continuously increased with increasing pre-strains. The increase in the density of mobile dislocations introduced by pre-strain was the main reason for the increase in creep rate. The proposed creep model showed good agreement with experimental data and captured the pre-strain effect.
Article
Physics, Fluids & Plasmas
Songsong Ji, Hongyuan Li, Zengzhi Du, Pengyu Lv, Huiling Duan
Summary: In this study, a theoretical framework is established to solve the interfacial coupled flow problem on a microstructured surface with slip boundary. By finding integral relation between the slip velocity and the slip velocity gradient, we solve the slip problem under the low-Reynolds-number limit. It is found that a small viscosity ratio, large fluid interfacial fraction, or large depth-to-width ratio of a groove can result in a large vorticity flux in the groove, leading to a large slip length. Therefore, we propose a method to enhance the slippage by introducing a jet flow in the grooves, which is verified by our theory. This study provides a new method for theoretically solving the coupled flow problem and can be extended to cases of high-speed flow.
PHYSICAL REVIEW FLUIDS
(2023)
Article
Materials Science, Multidisciplinary
Wenbin Liu, Feng Zhao, Long Yu, Yangyang Cheng, Huiling Duan
Summary: A constitutive framework involving microplasticity and macroplasticity was established to model the elastic-plastic transition of metallic materials. The significant role of microplasticity in cyclic softening behavior, especially in the irradiated case, was demonstrated. This framework provides a quantitative understanding of microplasticity in crystalline materials and has the potential to inform predictions of material damage and lifetime.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2023)
Article
Engineering, Marine
Kai Lv, Yongze Liu, Chenxi You, Yong Zou, Zeqi Shi, Pengyu Lv, Huiling Duan, Hongyuan Li
Summary: Due to the increasing demands in marine resource exploitation and marine defense security deployment, a cross-domain vehicle (CDV) with both high-speed mode as unmanned surface vehicles (USVs) and diving mode as autonomous underwater vehicles (AUVs) is proposed. The CDV utilizes well-tailored hydrofoils to reduce drag, allowing for high-speed cruising on the water surface. Numerical investigations and prototype tests demonstrate the technical feasibility of the CDV, with a maximum drag reduction of 43% and improved longitudinal stability through the elaborate design of the hydrofoils. Flow field analysis reveals the mechanisms behind drag reduction, including inhibition of wave-making and reduction of the wetted surface area.
Article
Mechanics
Guo-Qing Chen, Zengzhi Du, Hongyuan Li, Pengyu Lv, Huiling Duan
Summary: This paper numerically studies the effect of microstructures on flow separation and drag reduction. It is found that microstructures can reduce the motion amplitude of shed vortices, thereby suppressing flow separation and reducing drag. Both the planar and curved microstructures have excellent drag reduction performance.
Article
Multidisciplinary Sciences
Liujun Wu, Jiaqi Fu, Haonan Sui, Xiaoying Wang, Bowen Tao, Pengyu Lv, Mohan Chen, Zifeng Yuan, Huiling Duan
Summary: This study presents a method based on physics-informed neural networks (PINNs) to build yield criteria for porous single crystals. By embedding the associated flow rule into the training process, the resulting yield functions achieve higher accuracy and avoid the improper appearance of grooves in feed-forward neural networks. This framework exhibits excellent portability.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Yanxiang Liang, Luobin Wang, Aibo Luo, Qiang Wan, Huiling Duan
Summary: This study investigates the microstructure evolution and mechanical response of CLAM steel under high energy helium ion irradiation. The results show that radiation causes chromium segregation and promotes the growth of M23C6 precipitates. The irradiation-induced defects strengthen the strength of the steel.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Jiaqi Fu, Wenbin Liu, Haonan Sui, Yangyang Cheng, Huiling Duan
Summary: In this paper, the authors combine the geometrical perturbation method and irradiation-dependent constitutive relationship to simulate the occurrence of necking instability in metallic materials. They reveal the competition between extrinsic geometrical imperfections and intrinsic microstructure evolution on the necking process. The effects of irradiation on necking instability and the formation of Luders band are also investigated.
ACTA MECHANICA SINICA
(2023)
