Article
Materials Science, Multidisciplinary
Dong-Hyeop Kim, Sang -Woo Kim
Summary: This study aims to predict the effective mechanical properties (EMPs) of a 2-D triaxially braided composite (TBC) using an analytical model and investigate the effects of various geometric parameters on them. The prediction method is verified using experimental and predicted results from other references, showing good agreement. The study shows that geometric parameters significantly impact the undulation path of a braider yarn and the volume content of each composite yarn, leading to notable effects on EMPs. The proposed prediction method is computationally efficient and can contribute to the design and improvement of composite structures.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Composites
Yinglong Cai, Zhenqiang Zhao, Ying Tie, Yong Cao, Jiangyi Chen, Wieslaw K. Binienda, Chao Zhang
Summary: The study investigates the size-dependent failure behavior of single-layer triaxially braided composites under transverse tension load. Experimental and numerical results show a transition in the failure mechanism from fiber bundle pull-out dominated to fiber bundle shear dominated as specimen width increases. Numerical simulation results reveal the correlation of free-edge effect with progressive failure behavior.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Mechanics
Qingyu Kang, Shiyi Jin, Wei Ye
Summary: This study investigates a two-level homogenization of the macroscopic stiffness of 2DTBC, focusing on the roles of local stiffness model and undulating average scheme. The effective elastic property of braid yarn is rigorously derived by an energy method, and predictions using a simple rule of mixture and stiffness undulating average scheme show the most consistent agreement with experimental results.
COMPOSITE STRUCTURES
(2022)
Article
Mechanics
M. Masoumi, H. Mansoori, T. Dastan, M. Sheikhzadeh
Summary: This study investigated the tensile properties of hybrid triaxially braided composites of carbon and basalt fibers, finding improved tensile moduli in the longitudinal direction. Attempts to predict the tensile behavior using finite element modeling showed that nonlinear behavior of hybrid composites could not be accurately captured.
COMPOSITE STRUCTURES
(2021)
Article
Mathematics, Applied
Dong-Hyeop Kim, Sang -Woo Kim
Summary: Herein, a method for predicting the process-induced distortion (PID) of a 2-D triaxially braided composite (TBC) structure at the macroscopic level is proposed. This method takes into account the viscoelastic characteristics and different geometric parameters of the 2-D TBC to quickly predict the PID. A finite element-based curing simulation is used to analyze the PID trend with curing time of an L-shaped TBC flange in detail. The effects of geometric parameters on the effective material properties (EMPs) and PID of the 2-D TBC are also investigated.
FINITE ELEMENTS IN ANALYSIS AND DESIGN
(2023)
Article
Engineering, Civil
Peng Liu, Yinglong Cai, Zhenqiang Zhao, Chao Zhang
Summary: An elastoplastic mechanical-thermal constitutive model was integrated into a mesoscale finite element model to analyze the temperature rise phenomenon and failure behavior of composites under impact loading conditions. The numerical predictions successfully reproduced the observed failure modes and accurately captured the temperature distribution. The study explored the main factors of temperature rise and found that the plastic work of the matrix and the fracture transformed energy of the fiber tow were the primary sources of temperature rise. The transverse specimen exhibited superior energy absorption capacity under high-energy impacts.
THIN-WALLED STRUCTURES
(2024)
Article
Materials Science, Composites
Gayatri Vineela Marrivada, Phaneendra Kiran Chaganti, Ravindran Sujith
Summary: This research focuses on studying the mechanical behavior of dry triaxially braided glass fiber sleeves and their composites through experimental and analytical methods. Different braided sleeves at angles of 30 degrees, 45 degrees, and 60 degrees were tested for tensile, flexural, short beam shear, and impact properties. A numerical model was developed to predict the elastic properties and mechanical strength values, with the 30 degrees specimens showing superior performance compared to the other angles.
JOURNAL OF COMPOSITE MATERIALS
(2021)
Article
Mechanics
Frieder Heieck, Christoph Kuon, Andrea Miene, Peter Middendorf, Axel S. Herrmann
Summary: This paper analyzes the tensile properties of 2D braid reinforced composites in relation to process-induced fiber architecture variations. Parametric study and image analysis are conducted to determine the effects of radial braiding parameters on the braid characteristics and mechanical properties. The results show strong correlations between measured fiber architectures and mechanical properties, suggesting the importance of detailed information about the fiber architecture for predicting the properties of 2D braided composites.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Mechanical
Zhenqiang Zhao, Peng Liu, Haoyuan Dang, Hailiang Nie, Zaoyang Guo, Chao Zhang, Yulong Li
Summary: The study investigated the effects of loading rate and loading direction on the compression failure behavior of a typical 0 degrees/+/- 60 degrees 2DTBC. It was found that both axial and transverse compression strength significantly increased under dynamic loading conditions, with different failure mechanisms observed for the two loading directions. Additionally, the influence of loading rate on the compressive failure behavior of the 2DTBC was systematically examined.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Mechanics
Peng Liu, Yinglong Cai, Chunlin Du, Yang Chen, Zhenqiang Zhao, Chao Zhang
Summary: An elastoplastic mechanical-thermal model is proposed and applied to simulate the temperature rise of braided composite materials. Experimental tests and infrared camera monitoring were conducted to validate the model, showing good agreement between predictions and results. The major source of temperature rise is found to be the dissipated energy of fiber bundle fracture.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Composites
Garrett W. Melenka, Ali Gholami
Summary: Braided composites contain interwoven fibers embedded in a matrix material, requiring advanced measurement methods for accurate characterization. Micro-computed tomography (mu CT) was used for high-resolution imaging of braided composites, allowing identification and measurement of individual fibers within yarns. Through Avizo and XFiber analysis, properties such as fiber orientation angles and diameter were obtained, providing a roadmap for accurate modeling of braided composite unit cell geometries.
COMPOSITES COMMUNICATIONS
(2021)
Article
Engineering, Mechanical
Xiaodong Liu, Xiaoxu Wang, Diantang Zhang, Kun Qian
Summary: The objective of this study is to analyze the effect of voids on damage evolution in 3D5D braided composites under fatigue loading. Micro-CT and novel image algorithms were used to capture the detailed sequence of events during void coalescence to cracking. Debonding dominates fatigue damage propagation and the voids located at the interface of yarns are found to be critical. The deflection of the crack front of the voids was quantified using automated algorithms.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Mathematics, Interdisciplinary Applications
Huixiao Bai, Gang Ding, Shusheng Jia, Jinguo Hao
Summary: The research demonstrates that carbon nanotube yarns can be embedded in 3D braided composites as strain sensors to effectively monitor the progressive damage accumulation process of the composite materials.
DISCRETE DYNAMICS IN NATURE AND SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Bo-Wen Chen, De-Wei Ni, Chun-Jing Liao, You-Lin Jiang, Jun Lu, Yu-Sheng Ding, Hong-Da Wang, Shao-Ming Dong
Summary: The study discussed and revealed the mechanisms of fibers degradation and matrix cracks formation in 2D-C-f/ZrB2-SiC composites fabricated by a joint processing of slurry infiltration and hot pressing. A potential solution to mitigate these issues was proposed based on the revealed microstructure evolution mechanisms.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Polymer Science
Cuiyu Li, Mengxiao Shi, Wenjin Xing, Jiajia Song, Jingting Shan, Lei Zhang, Changhong Feng
Summary: This study investigated the effects of CA/PGPA modification on the mechanical properties of aramid 3D braided composites, and further improved the mechanical properties of the composites by modifying them with aramid nanofiber/graphene nanoparticle (ANF/G).
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)