Scholarlink

<p>This study focused on three typical three-dimensional woven tubular composites (3DWTCs) with different weaving architectures, namely through orthogonal (TO), shallow cross-linked (SCL), and shallow-crossed curved joint (SCCJ), aiming to clarify their low-temperature compressive performance and failure mechanisms. Axial and lateral compressive tests were conducted over a temperature range of 20&#xa0;°C to -60&#xa0;°C. The results indicated that the compressive properties of all 3DWTCs were significantly improved with decreasing temperature: when the temperature decreased from 20&#xa0;°C to -60&#xa0;°C, the axial ultimate stress of TO increased by 71.89%, the compressive modulus of SCCJ rose by 94.17%, and the lateral energy absorption of SCL improved by 30.52%. Structurally, TO exhibited the best axial compressive performance, followed by SCL and SCCJ, while SCL outperformed the other two weaving architectures in lateral compression. Low temperatures induced a ductile-to-brittle transition in 3DWTCs, with TO showing concentrated crack distribution and SCCJ presenting dispersed microcracks; the main micro-damage mechanisms included matrix cracking, fiber/matrix interfacial cracking, fiber pull-out, and resin embrittlement. The findings provide valuable guidance for the structural optimization, performance design, and safety evaluation of low-temperature-resistant lightweight components in extreme engineering fields.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Systematic Investigation of the Low Temperature Compressive Properties and Damage Mechanisms of 3D Woven Tubular Composites with Diverse Weaving Architectures

  • 期刊论文

  • 发表日期：

    2026年5月9日

查看全文
  • Xin Sun,
  • Yiwei Ouyang,
  • Xiaoke Huang,
  • Xiaonan Wang,
  • Yiran Han,
  • Duyan Zhang,
  • Yang Liu,
  • Xiaozhou Gong

摘要

This study focused on three typical three-dimensional woven tubular composites (3DWTCs) with different weaving architectures, namely through orthogonal (TO), shallow cross-linked (SCL), and shallow-crossed curved joint (SCCJ), aiming to clarify their low-temperature compressive performance and failure mechanisms. Axial and lateral compressive tests were conducted over a temperature range of 20 °C to -60 °C. The results indicated that the compressive properties of all 3DWTCs were significantly improved with decreasing temperature: when the temperature decreased from 20 °C to -60 °C, the axial ultimate stress of TO increased by 71.89%, the compressive modulus of SCCJ rose by 94.17%, and the lateral energy absorption of SCL improved by 30.52%. Structurally, TO exhibited the best axial compressive performance, followed by SCL and SCCJ, while SCL outperformed the other two weaving architectures in lateral compression. Low temperatures induced a ductile-to-brittle transition in 3DWTCs, with TO showing concentrated crack distribution and SCCJ presenting dispersed microcracks; the main micro-damage mechanisms included matrix cracking, fiber/matrix interfacial cracking, fiber pull-out, and resin embrittlement. The findings provide valuable guidance for the structural optimization, performance design, and safety evaluation of low-temperature-resistant lightweight components in extreme engineering fields.