scholarly journals Experimental characterization and numerical modeling of damage at the mesoscopic scale of woven polymer matrix composites under quasi-static tensile loading

2015 ◽  
Vol 119 ◽  
pp. 1-11 ◽  
Author(s):  
A. Doitrand ◽  
C. Fagiano ◽  
V. Chiaruttini ◽  
F.H. Leroy ◽  
A. Mavel ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Tensile Loading ◽  
Matrix Composites ◽  
Experimental Characterization ◽  
Mesoscopic Scale ◽  
Static Tensile Loading ◽  
Static Tensile

Fiber Breakage In Polymer-Matrix Composites During Static And Fatigue Loading, Observed By Electrical Resistance Measurement

1997 ◽  
Vol 503 ◽  
Author(s):  
Xiaojun Wang ◽  
D. D. L. Chung
Keyword(s):  
Electrical Resistance ◽  
Fatigue Testing ◽  
Polymer Matrix Composites ◽  
Fatigue Loading ◽  
Fiber Direction ◽  
Matrix Composites ◽  
Fiber Breakage ◽  
Static Tensile Loading ◽  
Static Tensile ◽  
Epoxy Matrix Composite

ABSTRACTBy measuring the electrical resistance of a continuous unidirectional carbon fiber epoxy-matrix composite along the fiber direction during loading in this direction, fiber breakage was progressively monitored in real time. Fiber breakage occurred in spurts involving 1000 fibers or more. It started at about half of the failure strain during static tensile loading and at about half of the fatigue life during tensiontension fatigue testing. Immediately before static failure, 35% of the fibers were broken. Immediately before fatigue failure, 18% of the fibers were broken. The fiber breakage was accompanied by decrease in modulus.

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