Parametric Characteristics Analysis of Three-Unit-Cell Model in 3D Seven-Directional Braided Composites

Xiyue Zhang¹, Feizhou Li^1,*, Zhihai Hu¹, Weiliang Zhang¹, Xindang He², Gexia Yuan¹, Yanwei Feng³, Yafeng Qi^4,5,*
1 Institute of Mechanical Engineering, Baoji University of Arts and Sciences, Baoji, China
2 Department of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an, China
3 College of Electron-Mechanics and Automobile Engineering, Tianshui Normal University, Tianshui, China
4 State Key Laboratory of Electromechanical Integrated Manufacturing of High-Performance Electronic Equipment, School of Electro-Mechanical Engineering, Xidian University, Xi’an, China
5 State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, China
* Corresponding Author: Feizhou Li. Email: email ; Yafeng Qi. Email: email

Computers, Materials & Continua https://doi.org/10.32604/cmc.2026.084077

Received 16 April 2026; Accepted 25 June 2026; Published online 20 July 2026

Abstract

Three-dimensional (3D) braided composites are widely used in aerospace and automotive industries due to their superior mechanical properties. However, traditional 3D four-directional or five-directional braided composites exhibit limitations in multi-axial load-bearing capacity and structural stability under complex stress conditions. To address these challenges, we propose a novel 3D seven-directional braided composite structure, which enhances mechanical performance in both axial and transverse directions by incorporating additional reinforcement yarns. This structure consists of braiding yarns, axial yarns, six-directional yarns and seven-directional yarns, forming a more uniform and stable interlacing network. Based on the positional relationships between yarns, a parametric three-unit-cell model (incorporating interior, surface, and corner unit-cells) was developed to analyze the effects of braiding parameters and angles on fiber volume fraction and unit-cell geometry. Especially, an automated modeling plugin was created to efficiently generate unit-cell models for further mechanical analysis. The proposed 3D seven-directional braided composite provides a new theoretical framework for designing advanced textile composites, expanding their potential for diverse engineering applications.

Keywords

3D seven-directional braided composites; braiding parameters; fiber volume fraction; three-unit-cell model

Downloads
- Full-Text PDF
Citation Tools
- BibTex
- EndNote
- RIS

165

View
26

Download
0

Like

All issues

Online First

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Parametric Characteristics Analysis of Three-Unit-Cell Model in 3D Seven-Directional Braided Composites

Abstract

Keywords

165

26

0

Further Information

Guidelines

Follow Us

Join Us

Contact Us

WhatsApp:

Share Link