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Fiber pushout test - A three-dimensional finite element computational simulationA fiber pushthrough process was computationally simulated using three-dimensional finite element method. The interface material is replaced by an anisotropic material with greatly reduced shear modulus in order to simulate the fiber pushthrough process using a linear analysis. Such a procedure is easily implemented and is computational very effective. It can be used to predict fiber pushthrough load for a composite system at any temperature. The average interface shear strength obtained from pushthrough load can easily be separated into its two components: one that comes from frictioal stresses and the other that comes from chemical adhesion between fiber and the matrix and mechanical interlocking that develops due to shrinkage of the composite because of phase change during the processing. Step-by-step procedures are described to perform the computational simulation, to establish bounds on interfacial bond strength and to interpret interfacial bond quality.
Document ID
19910048473
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mital, Subodh K.
(NASA Lewis Research Center Cleveland, OH, United States)
Chamis, Christos C.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Journal of Composites Technology and Research
Volume: 13
ISSN: 0885-6804
Subject Category
Structural Mechanics
Accession Number
91A33096
Distribution Limits
Public
Copyright
Other

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