Article
Materials Science, Characterization & Testing
Li Sun, Minghai Wei, Jie Zhu
Summary: The impregnation of STF can effectively enhance the impact resistance performance of the three FRP types, with different effects and mechanisms observed. The STF significantly improves the mechanical performance of CFRP, while it changes the mechanical mechanism of GFRP.
Article
Mechanics
Mohammad Rauf Sheikhi, Selim Gurgen
Summary: This study enhances the energy absorption performance of multi-layer composites by introducing shear thickening fluid (STF), which results in increased energy absorption capacity and rates, as well as reduced impact forces. The specific structure Config12 is shown to be the most effective design, distributing impact energy throughout the entire structure during impact.
COMPOSITE STRUCTURES
(2022)
Review
Mechanics
Qianyu Zhang, Zhigang Qin, Ruosi Yan, Sainan Wei, Wei Zhang, Suling Lu, Lixia Jia
Summary: Shear thickening liquid combined with high-performance fiber can be made into a flexible and lightweight liquid protection device with intelligent mechanical response and energy absorption mechanism, realizing liquid-solid transformation. This composite material has a ballistic-resistant mechanism and properties, and various factors affecting ballistic impact property are discussed for better understanding of the reaction mechanism of materials. Different characterization methods of ballistic properties are considered for the research, development, and application of flexible and intelligent ballistic materials with high responsiveness.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Mechanical
Lalin Lam, Wensu Chen, Hong Hao, Zhejian Li, Ngoc San Ha, Thong M. Pham
Summary: This study proposes a novel Bio-Inspired Energy-Absorbing Device (BIEAD) that utilizes the shear thickening characteristics of a shear thickening fluid (STF). The device mimics the viscoelastic material found in the suture interfaces of headbutting animals and woodpecker beaks to achieve recoverable energy absorption. Unlike conventional structures, the proposed device dissipates impact energy through viscous dissipation and internal friction of the STF. It shows good energy absorption capacity and can slowly recover after impact.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
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)
Review
Polymer Science
Matheus Pereira Ribeiro, Pedro Henrique Poubel Mendonca da Silveira, Fabio de Oliveira Braga, Sergio Neves Monteiro
Summary: With the increasing destructive power of firearms, the need for enhanced ballistic armors is continuous. The research on utilizing non-Newtonian colloidal shear thickening fluid for treating ballistic panels has gained momentum in recent years, showing promising results under ballistic impact.
Article
Materials Science, Composites
Qianyu Zhang, Zixuan Liu, Zhigang Qin, Ruosi Yan, Lixia Jia
Summary: This study successfully prepared STF/UHMWPE flexible composites with significantly higher impact resistance compared to pure UHMWPE fabric, exhibiting high energy absorption capability in impact tests. The composites with different parameters showed minor fractures during impact testing, with the main energy absorption mechanisms being fabric deformation and friction between the impact head and nanoparticles.
COMPOSITES COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Junli Hao, Jie Ding, Gregory C. Rutledge
Summary: To enhance the impact resistance of protective clothing, this study replaced traditional woven microfiber fabrics with nonwoven mats of electrospun ultrafine fibers (UFFs) and incorporated shear-thickening fluids (STFs). The use of UFFs improved STF retention and shape stability due to their high specific surface area, small pore size, and large capillary force. The UFF-STF composite showed excellent performance with high breakthrough pressure and improved STF retention compared to composites based on conventional microfiber fabrics. The mechanical properties of the composite were affected by the rate of deformation, STF viscosity, and UFF morphology.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Vikram Rathee, Joia Miller, Daniel L. Blair, Jeffrey S. Urbach
Summary: We directly measured the stress at the boundary of a shear-thickening cornstarch suspension and found persistent regions of high local stress propagating in the flow direction. The structure of these propagating fronts was determined, including the profile of boundary stress and the nonaffine velocity of particles. We also measured the relative flow between the particle phase and the suspending fluid and found it to be highly localized to the fronts and changing direction across the front. These fronts are composed of a localized region of high dilatant pressure and low particle concentration.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Materials Science, Multidisciplinary
Danyang Li, Rui Wang, Fuwang Guan, Yujing Zhu, Feifei You
Summary: This study investigates the influence of distribution and quantity of shear thickening fluid (STF) on the stab resistance performance and weight of STF/Kevlar (SK) fabrics. The tests show that uniform distribution of SiO2 nanoparticles in Kevlar fabrics significantly improves stab resistance force and weight gain. Additionally, the added STF has minimal impact on fabric flexibility, and the high inter-yarn friction of SK fabric enhances yarns' resistance to relative motion, maximizing the impact energy dissipation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Construction & Building Technology
Joo Ha Lee, Doo-Yeol Yoo
Summary: This study aims to design a high-performance fiber-reinforced cementitious composite (HPFRCC) material for reinforcing masonry walls and assess its impact on in-plane shear performance. The study found that HPFRCC significantly enhances the shear strength and energy dissipation capacity of masonry walls.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Polymer Science
Chun Wei, Xiaofei Hao, Chaoying Mao, Fachun Zhong, Zhongping Liu
Summary: Silicone rubber (SylSR) matrix composites with shear thickening fluid (STF) microcapsules (SylSR/STF) were fabricated and their mechanical behaviors were characterized. The addition of STF enhanced the impact resistance capacity of the composites and the effect was influenced by the strength of the SR matrix. This study provides a new method for packaging STF and improving the impact resistance behavior of SR, and has implications for the design of STF-related protective materials and structures.
Article
Engineering, Mechanical
Wenqing Zhu, Junjie Liu, Xiaoding Wei
Summary: This study delves into the effects of microscale constituent dimensions and properties on the impact performance of macroscopic fiber-reinforced laminates. A numerical algorithm incorporating the dynamic shear-lag model is developed, revealing a linear relationship between dimensionless viscosity and impulse duration for optimal energy dissipation. A new multiscale model is established to consider the contribution of the matrix to energy absorption, successfully capturing the impact of matrix properties on the ballistic limits of aramid fiber and carbon fiber composites.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Review
Materials Science, Composites
Zixuan Liu, Sainan Wei, Xiangmian Li, Lixia Jia, Haitao Li, Lili Jia, Ruosi Yan
Summary: This article investigates the application of shear thickening gel (STG) as a substrate for flexible protective materials. STG exhibits superior dimensional stability and does not leak or delaminate when used for a long time. STG/high-performance fiber flexible composites have a high-energy absorption capacity for multi-velocity impact. The article reveals the shear thickening mechanism of STG and provides a theoretical foundation for the performance analysis of STG composites.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Tao Hai, Fahad Mohammed Alhomayani, Kamal Sharma
Summary: A series of shear thickening fluids (STFs) based on dispersed fumed silica in virgin polyethylene glycol (V/PEG) and modified PEGs by malonic acid (M/PEG) and tartaric acid (T/PEG) were prepared. The modification of PEG to a higher chain length of medium molecules significantly improved STF peak viscosity and reduced the critical shear rate. The treated fabrics with V/STF, M/STF, and T/STF showed remarkable improvement in high-velocity impact resistance compared to the neat fabric targets.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Textiles
Selim Gurgen, Abhijit Majumdar
FIBERS AND POLYMERS
(2019)
Article
Mechanics
Selim Gurgen, Tolunay Yildiz
COMPOSITE STRUCTURES
(2020)
Article
Engineering, Civil
Selim Gurgen
THIN-WALLED STRUCTURES
(2020)
Article
Engineering, Civil
Selim Gurgen
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2020)
Article
Engineering, Multidisciplinary
Selim Gurgen, Mehmet Alper Sofuoglu
COMPOSITES PART B-ENGINEERING
(2020)
Article
Engineering, Manufacturing
Selim Gurgen, Mehmet Alper Sofuoglu
JOURNAL OF MANUFACTURING PROCESSES
(2020)
Article
Engineering, Civil
Selim Gurgen, Ricardo J. Alves de Sousa
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2020)
Article
Materials Science, Composites
Selim Gurgen, Fabio A. O. Fernandes, Ricardo J. Alves de Sousa, Melih Cemal Kushan
Summary: This study investigated the enhancement of impact resistance of cork composites using shear thickening fluid (STF), showing potential in reducing the maximum impact force and improving impact performance. Rheological measurements and SEM observations were conducted on the developed STF, which was then applied to multi-layered composite structures for low-energy impact testing. Results demonstrated promising outcomes, with a maximum reduction of 36% in impact force for some designs, indicating the effectiveness of STF in enhancing the impact performance of cork composites.
APPLIED COMPOSITE MATERIALS
(2021)
Article
Mechanics
Selim Gurgen, Mehmet Alper Sofuoglu
Summary: This study successfully improved the vibration attenuation behavior of multi-layer cork structures by using smart materials, enhancing their damping performance. The rheological properties of smart materials were also thoroughly investigated in the study.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Civil
Selim Gurgen, Mehmet Alper Sofuoglu
Summary: Polymer matrix composites have become widely used engineering materials due to developments in polymers and advanced fillers. However, machining operations on these materials can affect their engineering properties, and ceramic reinforced polymer composites exhibit different machinability properties compared to fiber-reinforced composites. Regression analyses were performed to investigate the relationships between the process parameters in this study.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2021)
Article
Mechanics
Mohammad Rauf Sheikhi, Selim Gurgen
Summary: This study enhances the energy absorption performance of multi-layer composites by introducing shear thickening fluid (STF), which results in increased energy absorption capacity and rates, as well as reduced impact forces. The specific structure Config12 is shown to be the most effective design, distributing impact energy throughout the entire structure during impact.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Mechanical
Mohammad Rauf Sheikhi, Behrang Shamsadinlo, Ozgur Unver, Selim Gurgen
Summary: When including hyperelastic materials in finite element analysis models, researchers often lack sufficient data. The data from tension or compression stress-strain testing can be utilized to analyze and determine material constants, leading to the selection of optimal material models and combinations.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Mohammad Rauf Sheikhi, Selim Gurgen, Onder Altuntas
Summary: Lightweight structures with high energy absorption capacity are in high demand for energy absorption applications in various engineering fields. This study conducted experimental investigation on multi-layer composites made of cork and warp-knitted spacer fabrics for anti-impact applications, measuring energy absorption and specific energy absorption capacities for each specimen. Furthermore, the study also calculated the Life Cycle Assessment of the designed composites to evaluate their eco-friendly properties.
Article
Polymer Science
Selim Gurgen, Abdullah Sert, Melih Cemal Kushan
Summary: The wear behavior of SiC/UHMWPE composites is significantly affected by elevated temperatures, showing adhesive and abrasive effects, leading to accelerated material loss in frictional systems.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Engineering, Mechanical
Selim Gurgen, Mehmet Alper Sofuoglu, Melih Cemal Kushan
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2020)
