A fatigue life estimative method based on dynamic mechanical and fatigue analyses

被引：3
|
作者：
Brocks, Thatiane [1 ]
Ornaghi Jr, Heitor Luiz [1 ]
Ornaghi, Felipe Gustavo [1 ]
Monticeli, Francisco Maciel [1 ]
Cornelis Voorwald, Herman Jacobus [1 ]
Hilario Cioffi, Maria Odila [1 ]
机构：
[1] Sao Paulo State Univ, UNESP, Sch Engn, Dept Mat & Technol,Fatigue & Aeronaut Mat Res Grp, Guaratingueta, Brazil
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2020年 / 138卷
基金：
巴西圣保罗研究基金会;
关键词：
Structural composites; Fatigue; Failure criterion; Modelling; INTERLAMINAR FRACTURE-TOUGHNESS; RANDOM-WALK APPROACH; THERMODYNAMIC PROPERTIES; DELAMINATION GROWTH; SUPERCOOLED MELTS; COMPOSITES; TEMPERATURE; RELAXATION; CREEP; MODEL;
D O I：
10.1016/j.ijfatigue.2020.105723
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this study, a model of fatigue life estimative based on dynamic mechanical analysis and fatigue tests is validated. Storage modulus is the viscoelastic parameter which better correlate with fatigue resistance. Accordingly, it was proposed a fatigue life estimative based on the extension of the storage modulus in function of time and its relation with the parameters of the equation which defines strength versus number of cycles (S-N) curve. A new correlation between viscoelastic properties and fatigue behavior was successfully applied allows creating a new S-N curve for the material without new mechanical tests requirement.
引用
收藏
页数：9
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