Fatigue behavior enhancement of short fiber glass reinforced polyamide by adding phase change materials

被引：11

作者：

Casado, J. A. ^{[1
]}

Gutierrez-Solana, F. ^{[1
]}

Carrascal, I. ^{[1
]}

Diego, S. ^{[1
]}

Polanco, J. A. ^{[1
]}

Hernandez, D. ^{[2
]}

机构：

[1] Univ Cantabria, LADICIM, Mat Lab, ETS,Ing CCP, Avda Castros S-N, E-39005 Santander, Spain

[2] SCTI, Plaza Ciencia S-N,Ed Prof Jose Luis Garcia, Santander 39005, Spain

来源：

COMPOSITES PART B-ENGINEERING | 2016年 / 93卷

关键词：

Polymer-matrix composites (PMCs); Fatigue; Damage mechanics; Thermal analysis;

D O I：

10.1016/j.compositesb.2016.02.059

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High responsibility thermoplastic components subjected to dynamic forces show serious in-service thermal limitations. This paper shows that adding the adequate material with a phase-change, PCM, to a thermoplastic matrix component significantly increases its fatigue life. To do this, the fatigue resistance of short fibre-glass reinforced polyamide is analysed by means of monotonous fatigue tests on tensile specimens. Next, the design of the pieces of this material, used in high-speed rail fastenings, is optimised for fatigue efforts by means of accelerated single-piece tests. Finally, it is verified that the fatigue resistance of these pieces endowed with hydrated salt, Na2S2O3 center dot 5H(2)O, which acts as a PCM, increases by a surprising 400% with respect to the reference pieces without PCM. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：115 / 122

页数：8

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