Micromechanics-based reliability analysis method for laminated composite structures

被引：10

作者：

Shi, Benke ^{[1
]}

Deng, Zhongmin ^{[1
]}

Tan, Lisha ^{[1
]}

Zhao, Yanlin ^{[1
]}

Zhang, Xinjie ^{[1
]}

机构：

[1] Beihang Univ, Sch Astronaut, Shahe Campus, Beijing, Peoples R China

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2021年 / 28卷 / 20期

基金：

中国国家自然科学基金;

关键词：

Micromechanics; delamination; uncertainty; multi-scale; composite structure; FIBER-REINFORCED COMPOSITE; DESIGN OPTIMIZATION; FAILURE; SIMULATION; PREDICTION; FRACTURE; STRESS; MATRIX; ENERGY;

D O I：

10.1080/15376494.2020.1717022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper proposes an improved reliability analysis method for composite structures. A new uncertainty model is introduced to quantify the uncertainty in the elastic properties and strength characteristics of the constituents. A multi-scale analysis procedure is developed to link scales in elastic properties, and solve the mechanical responses of all scales. A set of limit state functions are defined, corresponding to the failure modes of intralaminar constituents' failure and interlaminar delamination. First-order reliability method presents good convergence and accuracy of reliability estimation. Numerical cases are studied to demonstrate the validity and improvements of the proposed method.

引用

页码：2096 / 2113

页数：18

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