Damage of Semicrystalline Polyamide 6 Assessed by 3D X-Ray Tomography: From Microstructural Evolution to Constitutive Modeling

被引：44

作者：

Laiarinandrasana, L. ^{[1
]}

Morgeneyer, T. F. ^{[1
]}

Proudhon, H. ^{[1
]}

Regrain, C. ^{[1
]}

机构：

[1] CNRS, Ctr Mat, MINES Paristech, UMR 7633, F-91003 Evry, France

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2010年 / 48卷 / 13期

关键词：

creep; damage zone; fracture; mechanical properties; modeling; necking; polyamides; porosity; semicrystalline polymers; tensile tests; voids; X-ray tomography; POLYVINYLIDENE FLUORIDE; DEFORMATION; CAVITATION; SCATTERING; POLYMERS; GROWTH; METALS;

D O I：

10.1002/polb.22043

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this study an attempt is made to link the damage and microstructural evolution of semicrystalline polymers, in particular polyamide 6, to the macroscopic material behavior during tensile and creep tests. Tensile specimens, removed before failure were seen to have undergone striction. They were examined using synchrotron radiation tomography. These samples showed elongated axisymmetric columns of voids separated by thin ligaments of material. These observations were confirmed and refined through a cryofractography experiment of a different tensile sample, stopped before failure. An attempt was made to obtain quantitative data about void volume fraction and morphology through image analysis. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 1516-1525, 2010

引用

页码：1516 / 1525

页数：10

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