Article
Engineering, Manufacturing
Mojtaba Aghamirzaie, Amir Najibi, Ahmad Ghasemi-Ghalebahman
Summary: This paper proposes and studies a new multi-layered origami pattern for crash tubes, which shows improved crashworthiness. The results indicate that adjusting the module number, angle, and outer layer height can effectively enhance the mechanical responses of the origami tube.
INTERNATIONAL JOURNAL OF CRASHWORTHINESS
(2023)
Article
Engineering, Civil
Ismail Ozen, Hasan Gedikli, Mustafa Aslan
Summary: This paper aims to investigate the energy absorbing and deformation behaviors of composite crash boxes with different geometries. Experimental and numerical studies demonstrate that composite crash boxes filled with cellular structures perform better in terms of energy absorption performance.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Nima Jafarzadeh-Aghdam, Kai-Uwe Schroeder
Summary: Axial crushing of square crash boxes is a complex phenomenon, with the unrepeatability of tests and simulations decreasing the reliability of research results.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Civil
Jiayue Zhai, Dingguo Zhang, Meng Li, Chengbo Cui, Jianguo Cai
Summary: This study investigated the energy-absorption characteristics of origami honeycombs in the out-of-plane crushing process. The results showed that origami honeycombs have a more stable folding process and predictable deformation mode. The theoretical model deduced using the super-folding method was found to be accurate, with an error between the theoretical and simulation results ranging from -8.55% to 6.50%.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Alireza Mortazavi Moghaddam, Atefeh Kheradpisheh, Masoud Asgari
Summary: The importance of the frontal vehicle structure and crash box in managing crash energy and ensuring vehicle safety is highlighted. The design process for a crash box is outlined, incorporating novel thin-walled structures and traditional crash scenarios to prove its effectiveness. The study concludes that utilizing corrugated conical thin-walled tubes in crash box design can provide a stable and efficient energy absorber for passenger cars.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2021)
Article
Engineering, Mechanical
Zhongyuan Wo, Julia M. Raneses, Evgueni T. Filipov
Summary: Energy absorption devices are important for mitigating damage from collisions and impact loads. This study presents a deployable design concept using origami tubes to absorb energy through crushing. The results show that the energy-absorbing performance of the deployed origami tubes is slightly better than conventional prismatic tubes. Furthermore, the geometric design of the tube can control the relationship between energy absorption and deployment, and the origami tubes have the potential for self-locking after deployment.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2022)
Article
Materials Science, Multidisciplinary
Yang Vincent Liu, Sanja Kutnjak Ivkovich, Jon Maskaly, Yongjae Nam, Richard R. Bennett, Skyler Morgan, Katherine Dunn
Summary: This study proposes a foldcore consisting of rigid triangular units. The peak stress, average stress, and densification strain of the suggested foldcore are analyzed numerically at different cutting heights and varied parameters n. The damage modes are also analyzed. Additionally, the effect of strain rate on the foldcore's structural response and energy absorption capacity is investigated. The findings show that the contraction stable state foldcore with a cutting height of 1/5 has the best energy absorption capacity, while increasing parameter n improves the energy absorption performance.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Manufacturing
J. -E. Chambe, C. Bouvet, O. Dorival, S. Rivallant, J. -F. Ferrero
Summary: The study aimed to investigate the energy absorption performance of composite tubes under the influence of dynamic effects, comparing their behavior in quasi-static and dynamic loading conditions. It was found that composites with 90-degree oriented fibers stabilized by woven plies exhibited better performance in dynamic loading compared to static loading.
INTERNATIONAL JOURNAL OF CRASHWORTHINESS
(2021)
Article
Engineering, Civil
Zhonggang Wang, Shaocheng Yao, Kai Liu, Kai Wei, Tianyu Gao, Minquan Zhao
Summary: This study proposes a design strategy of embedding kresling-origami into conventional honeycomb to improve its energy absorption capacity. The experiment results show that the proposed origami-embedded honeycomb has higher specific energy absorption and comparable energy absorption performance compared to conventional ones. The mechanism of the embedding design strategy is clarified through comparison analysis between experiments and simulations. This strategy provides a novel way to optimize the mechanical properties of honeycomb and may inspire new innovations of metamaterials.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Civil
Jiacheng Wu, Yong Zhang, Wenzhen Huang, Yuanqiang Tan, Liang Su
Summary: This paper investigates the crushing characteristic of a novel curved Miura-ori metamaterial (CMM) with glass fiber-reinforced polyamides under multi-directional crushing loads. The deformation mechanism, crushing stress and energy absorption capability of the CMM are explored. The progressive deformation mechanism of CMM-G is demonstrated, which exhibits high energy dissipation efficiency and load-bearing capability. The geometric configurations of CMM-G positively influence its crushing behavior, making it suitable for applications as energy absorbers or load-bearing devices.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Lalin Lam, Wensu Chen, Hong Hao, Zhejian Li
Summary: This study proposes a novel approach to enhance the crushing efficiency and energy-absorbing performance of origami metastructure by incorporating shear thickening fluid (STF). The numerical investigation using LS-DYNA shows that the proposed STF-filled origami metastructure can generate a higher and more steady crushing force without inducing a significantly high initial peak force. The filled height and viscosity of STF, as well as the origami folding angle, significantly affect the energy-absorbing efficiency and crushing performance of the structure.
ENGINEERING STRUCTURES
(2024)
Article
Mechanics
Mincen Wan, Dayong Hu, Hongbo Zhang, Benlou Pi, Xubin Ye
Summary: This study investigates the crashworthiness performance of four types of tubular lattice structures based on triply periodic minimal surfaces (TPMS-T) and finds that they outperform traditional tubes. The effects of relative density, density gradient, and hybrid design on crashworthiness are analyzed, and it is found that they can improve crashworthiness performance.
COMPOSITE STRUCTURES
(2024)
Article
Engineering, Civil
Yubo Hou, Yong Zhang, Xiaolei Yan, Xiongming Lai, Jiming Lin
Summary: This paper presents a new design method for the sandwich column, and validates the accuracy of this design method through experiments and numerical analysis. The study finds that the geometrical characteristics of the sandwich column have a significant impact on its crashworthiness. The results show that the sandwich column with specific design parameters has the greatest energy absorption capacity.
THIN-WALLED STRUCTURES
(2021)
Article
Mechanics
Holger Boehm, Jonas Richter, Jinbong Kim, Geunsu Joo, Hong-Kyu Jang, Mungyu Jeong, Andreas Hornig, Maik Gude
Summary: Thermoplastic composite materials were experimentally and numerically investigated for their suitability in energy absorbing lightweight structures. Various specimen configurations were examined, and a stable progressive crushing behavior with promising force-displacement responses was observed. The study also utilized a high-fidelity multi-layered solid modeling approach for numerical analysis on a structural scale to predict damage initiation and failure progression.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Xinrong Fu, Xiong Zhang, Zhixin Huang
Summary: This study investigates the energy absorption characteristics of Nylon and Al/Nylon hybrid tubes manufactured by 3D printing, finding that Nylon tubes alone are not suitable for energy absorption, while hybrid tubes can avoid adverse effects and show high efficiency. Theoretical expressions are derived to predict mean crushing forces of the hybrid tubes, with predictions matching well with experimental results.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Multidisciplinary
Peng Hao, Yu Wang, Zhangming Wu, Xuanxiu Liu, Bo Wang, Wei Huang
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2020)
Article
Materials Science, Multidisciplinary
Dachuan Liu, Peng Hao, Kunpeng Zhang, Kuo Tian, Bo Wang, Gang Li, Weixiu Xu
MATERIALS & DESIGN
(2020)
Article
Engineering, Mechanical
Jiayao Ma, Shixi Zang, Huijuan Feng, Yan Chen, Zhong You
Summary: This study introduces a theoretical model to characterize and predict the behavior of non-rigid-foldable square-twist origami patterns, revealing a bifurcated deformation path and verifying it through experiments. Additionally, it explores programming the mechanical properties of the structure by adjusting the geometrical parameters and material stiffness.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Engineering, Mechanical
Zhibo Song, Shizhao Ming, Tong Li, Kaifan Du, Caihua Zhou, Bo Wang
Summary: The study found that introducing a chamfer can enhance the energy absorption capacity of CFRP tubes with cutouts. In most cases, the chamfer can eliminate the negative effects of the cutouts, leading to improved energy absorption efficiency.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Biophysics
Xiaowen Yin, Xiaomin Hu, Tong Li, Jiayao Ma
Summary: The proposed graded ring stent shows potential in reducing the risk of in-stent restenosis by decreasing the peak stress exerted on curved arteries.
JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY
(2021)
Article
Engineering, Mechanical
Shuxin Wang, Xiaochen Yang, Yan Chen, Jiayao Ma
Summary: A new SBCM system composed of a thin-walled bellow coaxially placed with a balancer was proposed and its theoretical models were developed, verified through numerical simulation and experiment. The effect of geometric parameters on the behavior of the balancer was studied and a case study indicated that optimizing the geometry of the balancer could achieve nearly zero actuation force.
MECHANISM AND MACHINE THEORY
(2021)
Article
Materials Science, Multidisciplinary
Jiayao Ma, Huaping Dai, Sibo Chai, Yan Chen
Summary: Research on origami and kirigami inspired foldcores has gained popularity due to their open channel configuration and diverse design parameters to meet customized requirements. A new kirigami-inspired pyramid foldcore showed significant improvement in compressive and shear performance compared to traditional honeycomb structures, indicating great promise in high-performance sandwich structure design.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Jiayao Ma, Sibo Chai, Yan Chen
Summary: Thin-walled structures have been widely used as energy absorption devices due to their lightweight, high energy dissipating capability through large deformation, and low cost. This paper reviews the geometric design, deformation mode and mechanism, and energy absorption of patterned structures in the form of tubes, foldcores, and metamaterials. The main achievements and limitations of existing works are summarized, and suggestions for future research challenges are provided.
MECHANICS OF MATERIALS
(2022)
Article
Engineering, Mechanical
Jiayao Ma, Xiaoyi Jiang, Yan Chen
Summary: This paper proposes an innovative 3D modular bistable meta-structure based on two different types of mechanisms with partially compatible motion ranges, allowing for fine-tuning of stiffness transition by adjusting geometric parameters and hinge stiffness to achieve a stable state for the meta-structure.
EXTREME MECHANICS LETTERS
(2022)
Article
Engineering, Mechanical
Fufu Yang, Miao Zhang, Jiayao Ma, Zhong You, Ying Yu, Yan Chen, Glaucio H. Paulino
Summary: Resch patterns are tessellation origami patterns consisting of more than one type of polygons. They are generally rigid foldable but have a large number of degrees of freedom. In order to achieve one-DOF forms of triangular Resch pattern units, the thick-panel technique is employed to replace spherical linkages with spatial linkages. The compatibility among all the vertices is studied by kinematic analysis, and two design schemes are obtained to form a one-DOF origami structure.
MECHANISM AND MACHINE THEORY
(2022)
Article
Multidisciplinary Sciences
Xiao Zhang, Jiayao Ma, Mengyue Li, Zhong You, Xiaoyan Wang, Yu Luo, Kaixue Ma, Yan Chen
Summary: Multistability plays a crucial role in advanced engineering applications, but current designs mostly rely on combinations of bistable unit cells in 2D/3D, lacking a universal multistable unit cell. This study introduces a tristable kirigami cuboid that integrates elastic sheets and switchable hinge axes to create elastic joints effective in specific motion ranges. The energy barriers between stable states can be programmed through geometric design parameters and material properties of the elastic joints. By using the tristable cuboids as unit cells, a family of metastructures with multiple stable states can be constructed. This versatile multistability and structural diversity enable the development of multifunctional materials and devices, as demonstrated in the design of a frequency reconfigurable antenna.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Multidisciplinary
Jinrui Yu, Jiayao Ma
Summary: This research focuses on the design of a shear morphing wing skin that can expand the shear morphing capability of aircraft wings. By using an angled module that utilizes the tensile stress generated during shear, the skin can withstand large shear deformation without wrinkling. Experimental results showed a 53% larger deformation range compared to existing designs. Parametric analysis and a theoretical model were also conducted to understand the wrinkle prevention mechanism and estimate the critical wrinkling angle of the skin.
APPLIED SCIENCES-BASEL
(2022)
Article
Multidisciplinary Sciences
Lei Fu, Weiqiang Zhao, Jiayao Ma, Mingyua Yang, Xinmen Liu, Lei Zhang, Yan Chen
Summary: A range of soft robotic systems have been developed recently, which utilize soft materials and respond to environmental stimuli. This research presents a design that achieves fast self-rolling locomotion with programmable trajectories under constant-humidity conditions, without the need for external modulation. By using a humidity-sensitive agarose film, this robot, called the Hydrollbot, harnesses energy from evaporation to propel itself. The optimized Hydrollbot is capable of carrying a payload up to 100% of its own weight. This robot's ability to self-propel with programmable trajectories under constant conditions offers practical advantages in applications such as sensors, medical robots, and actuation.
Article
Materials Science, Multidisciplinary
Kailun Huang, Jiayao Ma, Xiang Zhou, Hai Wang
Summary: This article presents a systematic study on the mechanical properties of 3D-printed metallic origami cellular metamaterials (OCMs) based on various origami configurations. The OCM specimens were fabricated using metallic 3D printing method, and compression tests were carried out to obtain their mechanical responses. The relationship between key design parameters and mechanical performance was revealed. Finite element modeling and parametric studies were conducted to further analyze the compressive behaviors of different OCM models. This work provides a practical guide for the design and fabrication of 3D-printed metallic OCMs.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Civil
Shixi Zang, Jiayao Ma, Zhong You, Yan Chen
Summary: This study investigated the tensile behavior of a non-rigid square-twist origami structure and established a relationship between its deformation and energy, force, and stiffness curves. An empirical model was developed to predict and tune the mechanical properties of the structure based on its parameters.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Rosaria Del Toro, Maria Laura De Bellis, Marcello Vasta, Andrea Bacigalupo
Summary: This article presents a multifield asymptotic homogenization scheme for analyzing Bloch wave propagation in non-standard thermoelastic periodic materials. The proposed method derives microscale field equations, solves recursive differential problems within the unit cell, establishes a down-scaling relation, and obtains average field equations. The effectiveness of this approach is validated by comparing dispersion curves with those from the Floquet-Bloch theory.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Yue Bao, Zhengcheng Yao, Yue Zhang, Xueman Hu, Xiandong Liu, Yingchun Shan, Tian He
Summary: This paper proposes a novel triple-gradient phononic acoustic black hole (ABH) beam that strategically manipulates multiple gradients to enhance its performance. The study reveals that the ABH effect is not solely brought about by the thickness gradient, but also extends to the power-law gradients in density and modulus. The synergistic development of three different gradient effects leads to more pronounced and broader bandgaps in PCs.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Matthias Ryser, Jason Steffen, Bekim Berisha, Markus Bambach
Summary: This study investigates the feasibility of replacing complex experiments with multiple simpler ones to determine the anisotropic yielding behavior of sheet metal. The results show that parameter identifiability and accuracy can be achieved by combining multiple specimen geometries and orientations, enhancing the understanding of the yield behavior.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Wenjun Li, Pengfei Zhang, Siyong Yang, Shenling Cai, Kai Feng
Summary: This study presents a novel two-dimensional non-contact platform based on Near-field Acoustic Levitation (NFAL), which can realize both one-dimensional and two-dimensional transportation. Numerical and experimental results prove the feasibility and ease of this method.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Shuo Liu, Lu Che, Guodong Fang, Jun Liang
Summary: This study presents a novel lamina conjugated bond-based peridynamic (BB-PD) model that overcomes the limitations of material properties and is applicable to composite laminates with different stacking sequences. The accuracy and applicability of the model are validated through simulations of elastic deformation and progressive damage behavior, providing an explanation of the damage modes and failure mechanisms of laminated composite materials subjected to uniaxial loading.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Omar El-Khatib, S. Kumar, Wesley J. Cantwell, Andreas Schiffer
Summary: Sandwich-structured honeycombs (SSHCs) are hierarchical structures with enhanced mass-specific properties. A model capable of predicting the elastic properties of hexagonal SSHCs is presented, showing superior in-plane elastic and shear moduli compared to traditional honeycombs, while the out-of-plane shear moduli are reduced.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Zhi-Jian Li, Hong-Liang Dai, Yuan Yao, Jing-Ling Liu
Summary: This paper proposes a process-performance prediction model for estimating the yield strength and ultimate tensile strength of metallic parts fabricated by powder bed fusion additive manufacturing. The effect of main process variables on the mechanical performance of printed metallic parts is analyzed and the results can serve as a guideline for improvement. The accuracy of the proposed model is validated by comparison with literature.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Saman A. Bapir, Kawa M. A. Manmi, Rostam K. Saeed, Abdolrahman Dadvand
Summary: This study numerically investigates the behavior of an ultrasonically driven gas bubble between two parallel rigid circular walls with a cylindrical micro-indentation in one wall. The primary objective is to determine the conditions that facilitate the removal of particulate contamination from the indentation using the bubble jet. The study found that the bubble jet can effectively remove contamination from the indentation for certain ranges of indentation diameter, but becomes less effective for larger indentation diameters.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
E. Polyzos, E. Vereroudakis, S. Malefaki, D. Vlassopoulos, D. Van Hemelrijck, L. Pyl
Summary: This research investigates the elastic and damage characteristics of individual composite beads used in 3D printed composites. A new analytical probabilistic progressive damage model (PPDM) is introduced to capture the elastic and damage attributes of these beads. Experimental results show strong agreement with the model in terms of elastic behavior and ultimate strength and strain.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
