基于能量等效假说的非钢筋混凝土开裂整体破坏模型

IF 1.8 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Rafael Nunes da Cunha, Camila de Sousa Vieira, David Leonardo Nascimento Figueiredo de Amorim
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引用次数: 0

摘要

本文基于能量等效假说,针对非钢筋混凝土裂缝提出了一种新的 LDM 框架公式。提出的模型被应用于四点弯曲试验下的梁和实际尺寸的水道隧道衬砌,并将数值结果与实验观察结果进行了比较。在分析的实例中,所提出的模型得出了准确的结果。可以看出,采用能量等效假设的 LDM 适用于非钢筋混凝土结构,得出的结果与实验结果一致。因此,可以认为在 LDM 框架下,能量等效假设可以扩展到分析不同荷载条件下不同材料的多个结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A lumped damage model for unreinforced concrete cracking based on the energy equivalence hypothesis

A lumped damage model for unreinforced concrete cracking based on the energy equivalence hypothesis

The present paper proposes a new formulation for the LDM framework based on the energy equivalence hypothesis for unreinforced concrete cracking. The proposed model was applied to a beam under a four-point bending test and a real-size waterway tunnel lining, where the numerical results were compared to experimental observations. Regarding the analysed examples, the proposed model presented accurate results. It was possible to observe that the LDM using the energy equivalence hypothesis applied to unreinforced concrete structures leads to results in agreement with experimental references. Therefore, it is possible to assume that the energy equivalence hypothesis can be extended to analyse several structures of different materials under different load conditions under the LDM framework.

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来源期刊
CiteScore
3.60
自引率
13.60%
发文量
536
审稿时长
4.8 months
期刊介绍: The Journal of the Brazilian Society of Mechanical Sciences and Engineering publishes manuscripts on research, development and design related to science and technology in Mechanical Engineering. It is an interdisciplinary journal with interfaces to other branches of Engineering, as well as with Physics and Applied Mathematics. The Journal accepts manuscripts in four different formats: Full Length Articles, Review Articles, Book Reviews and Letters to the Editor. Interfaces with other branches of engineering, along with physics, applied mathematics and more Presents manuscripts on research, development and design related to science and technology in mechanical engineering.
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