在自我愈合的混凝土中预测裂愈合的全周期预测,使用概括的多项式混沌扩展
Changhao Fu1, Weijie Xu2, Qiwei Zhan3
1School of Civil Engineering, Southeast University, Nanjing, China.
Communications engineering
|February 10, 2026
概括
自愈的混凝土可以自我愈合.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 计算力学 计算力学 计算力学
背景情况:
- 自愈混凝土的裂愈合能力对于结构耐用性至关重要,特别是在恶劣的环境中.
- 裂愈合的速度直接影响混凝土结构的使用寿命.
研究的目的:
- 开发一种定量建模和预测方法,用于评估自愈合混凝土中裂横截面修复率.
- 为预测使用寿命和优化维修策略建立可靠的框架.
主要方法:
- 利用多项式混沌扩展 (PCE) 来建模和预测裂愈合.
- 开发了一种第一阶段的PCE替代模型,以捕捉时间愈合进化.
- 采用缩小维度和提升订单,以在有限的数据中提高准确性.
- 为任意分布制定了一个通用的PCE框架,以扩大适用性.
主要成果:
- 通过识别影响治愈行为的关键因素,建立了一个基础数据库.
- 描述了从早期变化到非线性和的治愈时间演变.
- 通过推断测试验证了模型在所有愈合阶段的强度和可靠性.
结论:
- 开发的基于PCE的方法为自愈混凝土提供了可靠的定量框架.
- 这种方法可以准确地预测工程实践中的使用寿命和优化维修策略.
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