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模拟和优化工程混凝土复合材料的抗冲击性能与多壁碳纳米管使用响应表面方法

Naraindas Bheel¹, Bashar S Mohammed², Ean Lee Woen³

¹Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Tronoh, Perak, 32610, Malaysia. naraindas04@gmail.com.

Scientific reports

|October 15, 2024

概括

这项研究提高了工程水泥复合材料 (ECC) 的抗冲击性能,使用多壁碳纳米管 (MWCNTs) 和PVA纤维. 响应表面方法优化混合物,在关键基础设施应用中提供卓越的性能.

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.
纳米技术纳米技术

背景情况:

工程水泥复合材料 (ECC) 为结构应用提供了出色的拉伸柔性和裂纹控制.
多壁碳纳米管 (MWCNTs) 可以进一步提高ECC的机械性能.
关于MWCNT增强的ECC的抗冲击性能存在一个知识差距.

研究的目的:

评估,优化和预测MWCNTs-ECC的抗冲击能力.
确保MWCNTs-ECC在关键基础设施中的安全和广泛使用.
应用响应表面方法 (RSM) 来优化ECC混合物.

主要方法:

使用了13种ECC混合物,含有不同度的PVA纤维和MWCNT.
计算的第一次 (E1) 和最后 (E2) 冲击能量.
应用响应表面方法 (RSM) 用于分析和预测.

主要成果:

MWCNTs-ECC的抗冲击能力随着PVA纤维和MWCNTs度的增加而增加.
在28天内,用1%的PVA纤维和0.065%的MWCNTs实现了最佳的E1和E2值.
为E1和E2开发了高R2值 (99.30%和99.07%) 的验证预测模型.

结论:

响应表面方法有效优化了MWCNTs-ECC的抗冲击能力.
理想的0.066%MWCNTs和1%PVA纤维的混合物产生了100%的可取性.
建议使用0.066%的MWCNTs与1.0-1.50%的PVA纤维,以获得最佳的建筑业效果.

关键词:

在ECC ECC中,我们可以看到.冲击阻力冲击阻力冲击阻力在 MWCNTs 中.这是一种PVA纤维.在RSM建模和优化过程中,

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