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碳纤维增强聚合物复合材料 (Towpreg) 在各种温度条件下的机械行为

Yoonduck Seo^1,2, Jiming Sun¹, Amit Dixit³

¹Department of Mechanical Engineering, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul 04763, Republic of Korea.

|December 31, 2025

概括

碳纤维增强聚合物复合材料 (Towpreg) 在广泛的温度范围内表现出压容器的卓越机械性能. 这些先进的材料保持一致的抗拉强度和疲劳性能,这对于不断扩大的经济至关重要.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
化学工程是化学工程的重要组成部分.

背景情况:

碳纤维增强聚合物复合材料 (Towpreg) 对先进的储存容器至关重要.
在服务温度 (-40,25,85°C) 中保持一致的机械性能对于认证至关重要.
传统方法在温度变化方面面临挑战.

研究的目的:

为了评估用于气压力容器的Towpreg材料的热力学稳定性.
开发和验证本地化热控制系统进行测试.
在代表性使用温度下评估拉力和疲劳性能.

主要方法:

制造的Towpreg复合板. 复合板的生产.
开发局部化热控制系统 (HY-迷你加热器和HY-冷却器).
在-40°C,25°C和85°C的温度控制拉伸和疲劳测试.

主要成果:

拉力强度: 2973.3 MPa (RT),2767.3 MPa (HT,~7%的下降),2907.7 MPa (LT,~2%的下降). 拉力强度: 2973.3 MPa (RT),2767.3 MPa (HT,~7%的下降),2907.7 MPa (LT,~2%的下降). 拉力强度: 2973.3 MPa (RT),2767.3 MPa (HT,~7%的下降),2907.7 MPa (LT,~2%的下降).
对于疲劳而言,的斜率 (m):11.97 (RT),9.98 (HT),10.6 (LT).
疲劳截图 (log b) 保持不变 (~3.7).

结论:

拖复合材料在水箱应用中具有出色的热力学稳定性.
本地化热控制方法有效地解决了测试工件.
材料在指定的温度范围内满足性能要求.

关键词:

贝斯金方程贝斯金方程焦勒森效应焦勒森效应 SN 曲线的曲线是拖拉机拖拉机拖拉机在干燥上线上线.疲劳生活疲劳生活疲劳极限的疲劳极限是什么气压力容器的压力容器局部化热控制局部化热控制机械行为机械行为静态强度的静态强度是什么热力学稳定性热力学稳定性

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