基于微尺度数值模拟和响应表面方法的CFRP轴向压力强度的增强估计
Honoka Yoshida1, Huachao Deng2, Jun Koyanagi2
1Graduate School of Science, Tokyo University of Science, 6-3-1, Niijuku Katsushika-ku, Tokyo 125-8585, Japan.
Materials (Basel, Switzerland)
|January 26, 2024
概括
一种新的响应表面方法 (RSM) 有效地预测了碳纤维增强塑料 (CFRP) 的压力强度. 这种方法显著降低了与用于材料属性分析的传统模拟相关的计算成本.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 计算力学 计算力学 计算力学
背景情况:
- 压力强度是碳纤维增强塑料 (CFRP) 的一个关键性质.
- 准确预测压力强度对于结构应用是必不可少的.
- 涉及剪切测试和数值模拟的传统方法是计算密集且耗时的.
研究的目的:
- 开发一种新且计算效率高的方法来预测CFRP的轴向压力强度.
- 利用响应表面方法 (RSM) 克服传统模拟方法的局限性.
- 建立基于微尺度断裂模型的剪切特性可靠的预测方程.
主要方法:
- 开发一个微结结模型来预测单向纤维复合材料的压力强度.
- 对CFRP进行微尺度剪切模拟,使用不同的纤维和树脂特性.
- 响应表面方法 (RSM) 的应用,以基于模拟数据开发基于剪切性能的预测方程.
主要成果:
- 开发的响应表面方法 (RSM) 在预测压力强度方面实现了超过94%的确定系数.
- 该研究证实了基于RSM的CFRP压力强度预测方法的可靠性和有效性.
- 确定并排列了影响压力强度的关键材料特性:纤维含量,树脂产量后的弹性模量,产量应力和初始弹性模量.
结论:
- 响应表面方法 (RSM) 为预测CFRP压力强度提供了一个计算效率高的替代方案.
- 已建立的预测方程为材料属性分析提供了可靠的工具,不需要进行广泛的模拟.
- 了解材料性能的影响对于优化纤维增强复合材料的压力强度至关重要.
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