应用固化前沿模型模拟胶凝微生物系统的愈合

MATEC Web of Conferences Pub Date : 2023-01-01 DOI:10.1051/matecconf/202337809001

A. Jefferson, B. Freeman

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引用次数: 0

摘要

本研究探讨了耦合有限元模型模拟胶凝样品中微生物诱导的碳酸钙沉淀(MICP)和相关愈合行为的能力。这个最近的耦合3D模型最初是为了模拟胶凝结构元件中自主愈合系统的行为而开发的。它采用内聚区本构模型来模拟三维连续单元内嵌入界面的损伤愈合行为。用质量平衡方程和达西定律模拟了流体的流动。愈合是通过一个广义的固化前模型来计算的，该模型模拟了裂缝内愈合材料的积累。本文的研究表明，固化前沿模型可以校准，以预测胶凝标本中MICP的愈合，具有良好的准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The application of a curing front model to simulate healing in a cementitious microbial system

This study investigates the ability of a coupled finite element model to simulate Microbially Induced Calcium Carbonate Precipitation (MICP) and associated healing behaviour in cementitious samples. This recent coupled 3D model was first developed for simulating the behaviour of autonomic healing systems in cementitious structural elements. It employs a cohesive zone constitutive model for simulating the damage-healing behaviour of an embedded interface within 3D continuum elements. Fluid flow is simulated using a mass balance equation and Darcy’s law. Healing is computed via a generalised curing front model that simulates the accumulation of healed material within a crack. The research reported in this article demonstrates that the curing front model can be calibrated to predict healing from MICP in cementitious specimens with good accuracy.

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来源期刊

MATEC Web of Conferences

自引率

0.00%

发文量

342

审稿时长

6 weeks

期刊介绍： MATEC Web of Conferences is an Open Access publication series dedicated to archiving conference proceedings dealing with all fundamental and applied research aspects related to Materials science, Engineering and Chemistry. All engineering disciplines are covered by the aims and scope of the journal: civil, naval, mechanical, chemical, and electrical engineering as well as nanotechnology and metrology. The journal concerns also all materials in regard to their physical-chemical characterization, implementation, resistance in their environment… Other subdisciples of chemistry, such as analytical chemistry, petrochemistry, organic chemistry…, and even pharmacology, are also welcome. MATEC Web of Conferences offers a wide range of services from the organization of the submission of conference proceedings to the worldwide dissemination of the conference papers. It provides an efficient archiving solution, ensuring maximum exposure and wide indexing of scientific conference proceedings. Proceedings are published under the scientific responsibility of the conference editors.