Investigation of crack initiation with a three color digital holographic interferometer

被引：2

作者：

Karray, Mayssa ^{[1
,4
]}

Poilane, Christophe ^{[1
]}

Mounier, Denis ^{[3
]}

Gargoury, Mohamed ^{[4
]}

Picart, Pascal ^{[1
,2
]}

机构：

[1] Univ Maine, LUNAM Univ, LAUM, CNRS UMR 6613, Ave Olivier Messiaen, F-72085 Le Mans 9, France

[2] ENSIM, F-72085 Le Mans, France

[3] Univ Maine, LUNAM Univ, LPEC, CNRS UMR 6084, F-72085 Le Mans 9, France

[4] Unit Rech Phys Etat Solide, Fac Sci Sfax, Sfax, Tunisia

来源：

SPECKLE 2012: V INTERNATIONAL CONFERENCE ON SPECKLE METROLOGY | 2012年 / 8413卷

关键词：

Digital holography; Phase measurement; Displacement measurement; Composite materials; Shear strains; FRESNEL HOLOGRAMS; RECONSTRUCTION; SENSOR;

D O I：

10.1117/12.976047

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper proposes a three-color holographic interferometer devoted to the deformation analysis of a composite material submitted to a short beam shear test. The simultaneous recording of three laser wavelengths using a triple CCD sensor results in the evaluation of shear strains at the lateral surface of the sample. Such an evaluation provides a pertinent parameter to detect premature crack in the structure, long before it becomes visible on the real time stress/strain curve, or with a classical microscope.

引用

页数：6

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