THERMAL-WAVE NONDESTRUCTIVE EVALUATION OF A CARBON-EPOXY COMPOSITE USING MIRAGE EFFECT

被引：28
|
作者：
INGLEHART, LJ [1 ]
LEPOUTRE, F [1 ]
CHARBONNIER, F [1 ]
机构：
[1] ECOLE SUPER PHYS & CHIM IND,OPT LAB,10 RUE VAUQUELIN,F-75231 PARIS 05,FRANCE
来源：
JOURNAL OF APPLIED PHYSICS | 1986年 / 59卷 / 01期
基金：
美国国家科学基金会;
关键词：
CARBON - EPOXY RESINS - Coatings - FIBERS; NONTEXTILE - Applications - THERMAL DIFFUSION - Measurements - THERMAL EFFECTS - Imaging Techniques;
D O I：
10.1063/1.336870
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report new results obtained for thermal-wave nondestructive evaluation applied to composite material using the mirage effect. We have thermally characterized a composite of woven carbon fibers and epoxy consisting of both opaque and transparent parts. We have measured the thermal diffusivity in the different regions of the composite. An anisotropy was found in the thermal diffusivity of the fibers and an effective diffusivity of the epoxy was calculated. From these experimental values we have been able to determine the thickness of the epoxy which coats, in many parts, the fibers. Subsurface cuts made perpendicular to the fibers were easily detected.
引用
收藏
页码：234 / 240
页数：7
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