Evaluation of the Residual Strength of Structures Made of Composite Materials Based on a Conservative Distribution of Damage Parameters

被引：2

作者：

Fedulov, B. N. ^{[1
]}

Fedorenko, A. N. ^{[1
]}

Lomakin, E. V. ^{[2
]}

机构：

[1] Skolkovo Inst Sci & Technol, CDM2, Bolshoy Blvd 30,Bldg 1, Moscow 121205, Russia

[2] Lomonosov Moscow State Univ, GSP-1, Moscow 119991, Russia

来源：

XXI WINTER SCHOOL ON CONTINUOUS MEDIA MECHANICS | 2019年 / 581卷

基金：

俄罗斯基础研究基金会;

关键词：

FAILURE ANALYSIS; IMPACT TESTS; COMPRESSION; SIMULATION;

D O I：

10.1088/1757-899X/581/1/012023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The purpose of this study is to develop the method that conservatively estimates the residual strength of a composite structure with barely visible impact damage (BVID), without direct modelling of impact process. The basis of the research is in the conservative transformation of kinetic energy of impactor into damage of the material, which is associated with the system of microcracks in the matrix, fiber and interface. A special algorithm that distributes damage parameters in worst way for the composite structure provides conservative estimation of residual strength. Thus, bvid allowables can be set using fewer experiments.

引用

页数：6

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