Dynamic mechanical response of polyetheretherketone (PEEK) exposed to cyclic loads in the high stress tensile regime

被引：17

作者：

Berer, M. ^{[1
]}

Tscharnuter, D. ^{[1
]}

Pinter, G. ^{[2
]}

机构：

[1] Polymer Competence Ctr Leoben GmbH, A-8700 Leoben, Austria

[2] Univ Leoben, Mat Sci & Testing Polymers, A-8700 Leoben, Austria

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2015年 / 80卷

关键词：

Polyetheretherketone; Fatigue; Dynamic modulus; Storage and loss modulus; Energy dissipation; FATIGUE; DAMAGE;

D O I：

10.1016/j.ijfatigue.2015.06.026

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Tensile fatigue tests of PEEK at high load levels were carried out and analyzed regarding the dynamic mechanic behavior of the material during the tests. The experiments were conducted in the high stress tensile regime of PEEK. After a short period of unsteady temperature increase distinct material changes were observed during the tests at medium and high load levels. The storage modulus increased continuously while the loss modulus, loss factor (tan (5) and the dissipation energy rate decreased continuously. It was concluded that the accumulation of residual stresses because of partially irreversible deformation causes this effect. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：397 / 405

页数：9

共 18 条

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