Estimation of thermal stress intensity factor in a strip with various property gradations subjected to thermal shock

被引：3

作者：

Sadowski, T. ^{[1
]}

Pietras, D. ^{[1
]}

Ivanov, I. ^{[2
]}

机构：

[1] Lublin Univ Technol, Dept Solid Mech, Nadbystrzycka 40, Lublin, Poland

[2] Univ Ruse, Dept Engn Mech, Ruse, Bulgaria

来源：

PROCEEDINGS OF THE 14TH SYMPOSIUM ON EXPERIMENTAL STRESS ANALYSIS AND MATERIALS TESTING | 2014年 / 601卷

关键词：

Functionally graded material; thermal shock; stress intensity factor; fracture mechanics; FUNCTIONALLY GRADED MATERIALS; MATERIAL CERAMIC INTERFACE; FRACTURE PARAMETERS; KINKED CRACK; STATE;

D O I：

10.4028/www.scientific.net/KEM.601.71

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A numerical procedure for Thermal Stress Intensity Factor (TSIF) assessment of an edge crack in a strip made of Functionally Graded Material (FGM) subjected to thermal cooling process is elaborated. In order to perform it, user-defined subroutines in ABAQUS code are created. The analyzed ZrO2+Ti6AlV (zirconia + titanium alloy) material in the form of FGM could be applied as Thermal Barrier Coating (TBC) of cylinder liners as well as of aircraft jet engine blades and it is subjected to extremely quick temperature changes during the operation of the engine. Therefore, the estimation of the TSIF to determine fracture process in the ZrO2+Ti6AlV material is important for the structural element design, for their thermal protection, and for the safety of aircraft passengers.

引用

页码：71 / +

页数：3

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