Strength equation of composite materials and fractal dimension of cracks

被引：6

作者：

Gusev, Boris ^{[1
]}

Grishina, Anna ^{[2
]}

Korolev, Evgenij ^{[3
]}

Ayzenshtadt, Arkadij ^{[4
]}

机构：

[1] Russian Acad Engn, 9-4 Gazetnyj Alleyway, Moscow, Russia

[2] Moscow State Univ Civil Engn, 26 Yaroslayskoe Highway, Moscow, Russia

[3] St Petersburg State Univ Architecture & Civil Eng, 4 Vtoraya Krasnoarmejskaya St, St Petersburg, Russia

[4] Northern Arctic Fed Univ, 17 Severnaya Dvina Emb, Arkhangelsk, Russia

来源：

ENERGY REPORTS | 2021年 / 7卷

关键词：

Strength; Fractal dimension; Cracks; Percolation theory; Structural transition; PV modules; Building integration photovoltaics; SYSTEMS;

D O I：

10.1016/j.egyr.2021.07.096

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The paper presents the derivation of a strength equation of composite materials that can be represented in the form of polydisperse systems. The theoretical analysis shows that the process of composite material structure formation is anti-persistent. A structural transition was revealed at a volume defect concentration of 0.65, which leads to a sharp decrease in the relative material strength. The dependence for calculating the crack system fractal dimension based on the experimental dependences of the material strength and porosity is justified. (C) 2021 The Author(s). Published by Elsevier Ltd.

引用

页码：569 / 578

页数：10

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