图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
国际多尺度计算工程期刊
影响因子: 1.016 5年影响因子: 1.194 SJR: 0.452 SNIP: 0.68 CiteScore™: 1.18

ISSN 打印: 1543-1649
ISSN 在线: 1940-4352

国际多尺度计算工程期刊

DOI: 10.1615/IntJMultCompEng.v2.i1.70
13 pages

Construction of the Fiber-Matrix Interfacial Failure Envelope in a Polymer Matrix Composite

G. P. Tandon
University of Dayton Research Institute, 300 College Park, Dayton, OH 45469-0168, USA
Ran Y. Kim
University of Dayton Research Institute, 300 College Park, Dayton, OH 45469-0168, USA
Vernon T. Bechel
Air Force Research Laboratory, Wright-Patterson AFB, OH 45433, USA

ABSTRACT

Previous research efforts have used the single-fiber cruciform test to measure the tensile normal strength of a fiber/matrix interface while eliminating the influence of free-edge stresses that are present in transverse testing of conventional straight-sided specimens. In this work, the cruciform specimen was modified to characterize the fiber/matrix interface strength under combined transverse and shear loading. Initiation and growth of interface debonds were detected optically by observation of variations in the intensity of light reflected from the surface of the fiber during loading. Test data reduction was accomplished with a 3-D finite element model of the angled cruciform sample. Using the measured value of applied stress at debond initiation, and the calculated stress concentration factors at the fiber/matrix interface, a mixed-mode failure envelope was constructed in the normal-shear stress space, and a quadratic failure criteria was proposed. Finally, a brief discussion has been included of how this interfacial strength data may be used in ysis to predict bulk characteristics of a composite laminate.


Articles with similar content:

Effects of Sample Geometry on the Uniaxial Tensile Stress State at the Nanoscale
International Journal for Multiscale Computational Engineering, Vol.7, 2009, issue 3
J.-Y. Kim, A. Jennings, Steffen Brinckmann, J. R. Greer
EFFECT OF THE NANOPARTICLES WITH VARIOUS STRUCTURES AND MORPHOLOGIES ON THE THERMO-MECHANICAL PROPERTIES OF EPOXY-BASED CARBON FIBER-REINFORCED PLASTICS
Nanoscience and Technology: An International Journal, Vol.4, 2013, issue 1
V. E. Yudin, E. S. Molchanov, Kamila Kydralieva, E. M. Ivankova , V. Yu. Elokhovsky, G. V. Vaganov
MICRO-MACRO RELATIONSHIPS FROM DISCRETE ELEMENT SIMULATIONS OF SINTERING
International Journal for Multiscale Computational Engineering, Vol.15, 2017, issue 4
Marcin Chmielewski, Szymon Nosewicz, Jerzy Rojek
A NUMERICAL EVALUATION OF A NOVEL METHOD OF USING HEAT TRANSFER MEASUREMENTS TO DETERMINE LOCAL WALL SHEAR STRESS
International Heat Transfer Conference 9, Vol.3, 1990, issue
Patrick H. Oosthuizen, W. E. Carscallen, F. Arthur
PREDICTION OF THE SINTERING PROCESS FOR CERAMIC AND METAL POWDERS
International Heat Transfer Conference 8, Vol.6, 1986, issue
B. Dorri, F. W. Staub