[Oral Presentation]海洋潮区环境下氯离子在混凝土中超扩散的空间分形裂缝模型

Organized By

Hohai University

Monash University

Co-organized by

Southeast University

Jiangxi University of Science and Technology

Northeast University

DUT-BSU Scientific Research and Innovation Center

Suzhou University of Science and Technology

State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment

Sponsoring agency

KELI SDEM Software (Dalian) Co., Ltd.

Sugon Smart Computing Information Technology Co., Ltd.

Beijing Paratera Technology Co., Ltd.

Simpop Information Technology Co., Ltd.

Important Dates

Conference Announcement

December 2023, release First Round Announcement
Abstract Submission Deadline
March 31^th, 2024
Paper Submission Deadline
April 30^th, 2024
Registration
From January 1^st, 2024
Conference Schedule
May 31^st (Friday), 2024 On-Site Registration
June 1^st to 3^rd, 2024 Conference

海洋潮区环境下氯离子在混凝土中超扩散的空间分形裂缝模型

ID：254 Submission ID：271 View Protection：ATTENDEE Updated Time：2024-04-30 10:39:44 Hits：404 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

Session：[No Session] » [No Session Block]

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Abstract

本文建立了氯离子在裂缝混凝土结构中超扩散的空间分形导数模型。为了验证该模型，拟合了海洋潮区环境下，氯离子在裂缝混凝土试件中的超扩散真实实验数据，与传统的整数阶导数扩散模型相比，空间分形模型具有更好的拟合实验数据的能力，为表征氯离子在不同裂缝宽度下的混凝土中超扩散的复杂过程提供了一种有效的方法。通过进一步量化裂纹宽度、扩散系数和空间尺度因子之间的关系，发现空间尺度因子会随着裂缝宽度的增加而减小，扩散系数则会随之幂律增长，这些规律使我们在预测裂缝钢筋混凝土结构与模型参数的联系上具有明显优势。这些结果也对混凝土耐久性的理解和对实际工程应用的影响产生重要意义。

Keywords

氯离子扩散，空间分形，反常扩散，裂缝混凝土

Speaker

严晟杰

河海大学

Submission Author

严晟杰河海大学

梁英杰河海大学

Sponsored By

Hohai University

Panel of Computational Mechanics on Granular Materials, Working Party of Computational Mechanics, Chinese Society of Theoretical and Applied Mechanics

Jiangsu Society of Theoretical and Applied Mechanics