Nondestructive evaluation of aircraft composites using transmissive terahertz time domain spectroscopy

被引：276

作者：

Stoik, Christopher D. ^{[1
]}

Bohn, Matthew J. ^{[1
]}

Blackshire, James L. ^{[2
]}

机构：

[1] USAF, Inst Technol, Wright Patterson AFB, OH 45433 USA

[2] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 21期

关键词：

D O I：

10.1364/OE.16.017039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Terahertz time domain spectroscopy (TDS) was assessed as a nondestructive evaluation technique for aircraft composites. Damage to glass fiber was studied including voids, delaminations, mechanical damage, and heat damage. Measurement of the material properties on samples with localized heat damage showed that burning did not change the refractive index or absorption coefficient noticeably; however, material blistering was detected. Voids were located by TDS transmissive imaging using amplitude and phase techniques. The depth of delaminations was measured via the timing of Fabry-Perot reflections after the main pulse. Evidence of bending stress damage and simulated hidden cracks was also detected with terahertz imaging. (C) 2008 Optical Society of America

引用

页码：17039 / 17051

页数：13

共 25 条

[1]

[Anonymous], 2003, SENSING TERAHERTZ RA

[2]

ASPNES DE, 1985, HDB OPTICAL CONSTANT

[3] Conductivity of ZnO nanowires, nanoparticles, and thin films using time-resolved terahertz spectroscopy [J].

Baxter, Jason B. ;

Schmuttenmaer, Charles A. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (50) :25229-25239

[4] Calculation of various physics constants in heterogenous substances I Dielectricity constants and conductivity of mixed bodies from isotropic substances [J].

Bruggeman, DAG .

ANNALEN DER PHYSIK, 1935, 24 (07) :636-664

[5] Imaging with terahertz radiation [J].

Chan, Wai Lam ;

Deibel, Jason ;

Mittleman, Daniel M. .

REPORTS ON PROGRESS IN PHYSICS, 2007, 70 (08) :1325-1379

[6] Terahertz propagation in non-homogeneous strongly scattering media [J].

Chau, KJ ;

Mujumdar, S ;

Elezzabi, AY .

TERAHERTZ AND GIGAHERTZ ELECTRONICS AND PHOTONICS IV, 2005, 5727 :177-185

[7]

COONEY A, 2006, P SOC PHOTO-OPT INS, P1

[8] Propagation of terahertz radiation through random structures: An alternative theoretical approach and experimental validation [J].

Fletcher, J. R. ;

Swift, G. P. ;

Dai, De Chang ;

Levitt, J. A. ;

Chamberlain, J. M. .

JOURNAL OF APPLIED PHYSICS, 2007, 101 (01)

[9]

Kerker M., 1969, SCATTERING LIGHT OTH

[10] Scattering by a dense layer of infinite cylinders at normal incidence [J].

Lee, Siu-Chun .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2008, 25 (05) :1022-1029

← 1 2 3 →