Fracture control over thermal-mechanical creep and fatigue crack growth in near-alpha titanium alloy

被引：12
作者：
Tang, K. K. [1 ]
机构：
[1] E China Univ Sci & Technol, Sch Mech & Power Engn, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China
来源：
ENGINEERING FRACTURE MECHANICS | 2013年 / 110卷
基金：
中国博士后科学基金;
关键词：
Multiscale; Thermal; Creep and fatigue; Crack growth; Micro/macro; PROPAGATION; BEHAVIOR; MODEL;
D O I：
10.1016/j.engfracmech.2013.08.012
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A multiscale fatigue crack growth model is proposed to analyze the thermal-mechanical effects in materials under the non-additive effects of creep and cyclic loading. On the basis of the design criterion for aircrafts, the thermal-mechanical creep and fracture crack growth of a near-alpha titanium alloy TA12 are investigated. Influences of temperature profiles and perturbation number eta are also discussed. This fracture control approach offers a reference in the life design of airplanes. The objective of this research is to provide an inverse approach on health monitoring of crack growth in fracture control from the perspective of multiscaling. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：300 / 313
页数：14
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