Local microstructure and stress distributions at the crack initiation site in a short fiber reinforced polyamide under fatigue loading

被引：30

作者：

Belmonte, Enrico ^{[1
,2
]}

De Monte, Matthias ^{[2
]}

Riedel, Thomas ^{[2
]}

Quaresimin, Marino ^{[1
]}

机构：

[1] Univ Padua, Dept Management & Engn, Stradella S Nicola 3, I-36100 Vicenza, Italy

[2] Robert Bosch GmbH, Corp Sect Res & Adv Engn, Plast Engn, Robert Bosch Campus 1, D-71272 Renningen, Germany

来源：

POLYMER TESTING | 2016年 / 54卷

关键词：

Short fiber reinforced composites; Damage mechanisms; Fatigue; Polyamide; X-ray computed tomography; GLASS-FIBER; POLYMER COMPOSITES; ORIENTATION DISTRIBUTION; DAMAGE MECHANISMS; BEHAVIOR; ANISOTROPY; TENSILE; RECONSTRUCTION; TEMPERATURE; STRENGTH;

D O I：

10.1016/j.polymertesting.2016.06.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This work aims to study the influence of the fiber distribution on the damage onset in a short glass fiber reinforced polyamide under fatigue loading. A fatigue test of a notched specimen was interrupted at crack initiation, then a small sample around the notch was machined from the specimen and analyzed by means of X-Ray Computed Tomography (X-Ray CT) for the quantitative description of the fiber distribution. The real microstructure was reconstructed and then simulated in the Finite Element Method (FEM) code ABAQUS. The analysis gives an insight into the local matrix stress distributions at the notch tip. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：250 / 259

页数：10

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