The Theory of Critical Distances to perform the static assessment of 3D-printed concrete weakened by manufacturing defects and cracks
The Theory of Critical Distances to perform the static assessment of 3D-printed concrete weakened by manufacturing defects and cracks
复制标题
临界距离理论对因制造缺陷和裂缝而弱化的 3D 打印混凝土进行静态评估
DOI：
10.1016/j.prostr.2022.12.041
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Alanazi N
中科院分区：
文献类型：
--
作者：
Alanazi N
临界距离理论将多种方法组合在一起，假设在承受静态载荷的裂纹/缺口材料中，一旦与长度相关的临界有效应力超过材料抗拉强度，就会发生断裂。临界距离理论所使用的特征长度是一种材料性质，可以直接从极限拉伸强度和平面应变断裂韧性估算。在本研究中，基于大量的定制实验结果，证明了临界距离理论在量化3D打印混凝土中受到模式I静态载荷的裂缝和制造缺陷的有害影响方面也是成功的。
The Theory of Critical Distances groups together a number of approaches postulating that, in cracked/notched materials subjected to static loading, breakage takes place as soon as a critical length-dependent effective stress exceeds the material tensile strength. The characteristic length used by the Theory of Critical Distances is a material property that can directly be estimated from the ultimate tensile strength and the plane strain fracture toughness. In the present investigation, based on a large number of bespoke experimental results, it is demonstrated that the Theory of Critical Distances is successful also in quantifying the detrimental effect of cracks and manufacturing defects in 3D-printed concrete subjected to Mode I static loading.
影响因子：
11.4
作者：
Ma, Guowei;Buswell, Richard;Jones, Scott Z.
通讯作者：
Jones, Scott Z.
用于评估裂缝/制造缺陷对 3D 打印混凝土静态强度影响的临界距离理论
影响因子：
5.4
作者：
Alanazi N
通讯作者：
Alanazi N
影响因子：
3.8
作者：
Le, T. T.;Austin, S. A.;Thorpe, T.
通讯作者：
Thorpe, T.