AN EXPERIMENTAL INVESTIGATION OF IOSIPESCU SPECIMEN FOR COMPOSITE-MATERIALS

被引：27

作者：

HO, H ^{[1
]}

TSAI, MY ^{[1
]}

MORTON, J ^{[1
]}

FARLEY, GL ^{[1
]}

机构：

[1] USA,AEROSTRUCT DIRECTORATE,NASA,LANGLEY RES CTR,HAMPTON,VA 23665

来源：

EXPERIMENTAL MECHANICS | 1991年 / 31卷 / 04期

关键词：

D O I：

10.1007/BF02325989

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A detailed experimental evaluation of the losipescu specimen tested in the modified Wyoming fixture is presented. Moire interferometry is employed to determine the deformation of unidirectional and cross-ply graphite-epoxy specimens. The results of the moire experiments are compared to those from the traditional strain-gage method. It is shown that the strain-gage readings from one surface of a specimen together with corresponding data from moire interferometry on the opposite face documented an extreme sensitivity of some fiber orientations to twisting. A localized hybrid analysis is introduced to perform efficient reduction of moire data, producing whole-field strain distributions in the specimen test sections.

引用

页码：328 / 336

页数：9

共 18 条

[1]

ABDALLAH MG, 1989, ASTM STP, V1003, P231

[2] CURRENT STATUS OF THE IOSIPESCU SHEAR TEST METHOD [J].

ADAMS, DF ;

WALRATH, DE .

JOURNAL OF COMPOSITE MATERIALS, 1987, 21 (06) :494-507

[3]

ADAMS DF, 1987, EXPT MECH, P113

[4] THEORETICAL AND EXPERIMENTAL EVALUATION OF THE IOSIPESCU SHEAR TEST [J].

BARNES, JA ;

KUMOSA, M ;

HULL, D .

COMPOSITES SCIENCE AND TECHNOLOGY, 1987, 28 (04) :251-268

[5]

CZARNEK R, 1990, STRUCTURAL TESTING S, V30, P195

[6]

CZARNEK R, 1984, THESIS VIRGINIA POLY

[7]

Guild J., 1956, INTERFERENCE SYSTEMS

[8]

HO H, 1991, P ICCM, V8

[9]

IOSIPESCU N, 1967, J MATER, V2, P537

[10]

KUMOSA M, 1987, 6TH P INT C COMP MAT, V3, P243

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