Simplified equations for determining double-k fracture parameters of concrete for compact tension test

Q2 Materials Science

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI:10.5267/j.esm.2021.10.002

R. K. Choubey, Shailendra Kumar

引用次数: 8

Abstract

Polynomial equations in non-dimensional form for various fracture parameters of double-K fracture model for compact tension specimen have been derived and presented in this paper. These equations can be used for computing different double-K fracture parameters of concrete for known material properties and specimen size having relative size of initial crack length of 0.3 without involving much complexity in numerical computations. Values of peak load and corresponding crack opening displacement as necessary to compute the double-K fracture parameters of concrete have been derived from the established fictitious crack model in the present study. A simplified equation in non-dimensional form between peak load and critical crack opening displacement as obtained from a fictitious crack model has also been presented.

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确定混凝土紧拉试验双k断裂参数的简化方程

本文推导并给出了紧致拉伸试样双k断裂模型各断裂参数的无量纲多项式方程。这些方程可用于计算初始裂缝长度相对尺寸为0.3的已知材料性能和试件尺寸的混凝土的不同双k断裂参数，而不涉及太多的数值计算复杂性。本文从已建立的虚拟裂缝模型中导出了计算混凝土双k断裂参数所需的峰值荷载和相应的裂缝张开位移值。本文还提出了基于虚拟裂纹模型的峰值荷载与临界裂纹张开位移之间的无量纲简化方程。

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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来源期刊

Engineering Solid Mechanics Materials Science-Metals and Alloys

CiteScore

3.00

自引率

0.00%

发文量

期刊介绍： Engineering Solid Mechanics (ESM) is an online international journal for publishing high quality peer reviewed papers in the field of theoretical and applied solid mechanics. The primary focus is to exchange ideas about investigating behavior and properties of engineering materials (such as metals, composites, ceramics, polymers, FGMs, rocks and concretes, asphalt mixtures, bio and nano materials) and their mechanical characterization (including strength and deformation behavior, fatigue and fracture, stress measurements, etc.) through experimental, theoretical and numerical research studies. Researchers and practitioners (from deferent areas such as mechanical and manufacturing, aerospace, railway, bio-mechanics, civil and mining, materials and metallurgy, oil, gas and petroleum industries, pipeline, marine and offshore sectors) are encouraged to submit their original, unpublished contributions.