Volume 18, Number 4 (International Journal of Engineering 2007)                   IJIEPR 2007, 18(4): 47-57 | Back to browse issues page


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Shishehsaz M. The Effect of Matrix Bond Failure on Stress Distribution in Short and Long Fibers of a Hybrid Composite Lamina . IJIEPR. 2007; 18 (4) :47-57
URL: http://ijiepr.iust.ac.ir/article-1-29-en.html

, Shishesaz@yahoo.com
Abstract:   (6561 Views)

Abstract : The effect of a bond failure and its extent is studied on stress concentration in long fibers as well as stress distribution in short fibers and their surrounding matrix bays. The material is assumed to be a finite width hybrid composite lamina which is subjected to a tensile load of magnitude "P" at infinity. The surrounding matrix is assumed to take only shear (shear-lag theory). The bay adjacent to the first intact filament is allowed to experience a bond failure of size 2d . This failure is due to excessive shear load in the matrix which exceeds the fiber-matrix bond strength. The matrix at this zone may or may not experience yielding. The short fibers are simulated by assuming two successive breaks along each filament. The effect of bond failure length on short fiber load bearing capability, as well as stress concentration in the first intact filament is fully investigated. The effect of hybridization, in presence of bond failure is also examined on short fiber load bearing behavior.

  

Full-Text [PDF 333 kb]   (1021 Downloads)    
Type of Study: Research | Subject: Material Managment
Received: 2009/04/20

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