Analysis of Test Methods for Characterizing Skin/Stringer Debonding Failures in Reinforced Composite Panels

2009 ◽  
pp. 105-105-20 ◽  
Author(s):  
PJ Minguet ◽  
TK O'Brien
Keyword(s):  
Test Methods ◽  
Composite Panels ◽  
Reinforced Composite

Flexural Strength Analysis of Basalt Fiber Reinforced Composite Layup Structure

2016 ◽  
Vol 1133 ◽  
pp. 121-125
Author(s):  
Hanif Muqsit ◽  
Ali Nawaz Mengal ◽  
Saravanan Karupannan
Keyword(s):  
Flexural Strength ◽  
Optimum Design ◽  
Composite Structure ◽  
Basalt Fiber ◽  
Strength Analysis ◽  
Composite Panels ◽  
Fiber Reinforced ◽  
Flexural Test ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

In this study, the focus was on the optimum design of laminate stacking sequences (LSS) of basalt fiber reinforced composite (BFRP) structure. Eleven rectangular composite panels with different stacking sequences and fiber orientations were analyzed. A three-point flexural test according to ASTM D790 was carried out in ANSYS to simulate the basalt fiber reinforced composite layup flexural strength. From the results, it was found that the composite structure layup of [0/0/45/0/0]s has the highest strength among all samples.

Effects of Randomness on Band Gap Formation in Models of Fiber-Reinforced Composite Panels Having Quasirandom Fiber Arrangements

2007 ◽  
Vol 129 (5) ◽  
pp. 663-671 ◽  
Author(s):  
Liang-Wu Cai ◽  
Shashidhar Patil
Keyword(s):  
Band Gap ◽  
Large Scale ◽  
Dimensional Space ◽  
Base Line ◽  
Composite Panels ◽  
Fiber Reinforced ◽  
Gap Formation ◽  
Statistical Parameters ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

Large-scale deterministic simulations are performed in order to observe the band gap formation in composite models having quasirandom fiber arrangements. Unidirectional fiber-reinforced composite panels are modeled in two-dimensional space with quasirandom fiber arrangements that can be qualified as “essentially regular with slight randomness.” Different quasirandom fiber arrangements are computationally generated using the same control parameters. Statistical parameters are used to quantitatively describe the fiber arrangements. Subsequently, a series of arrangements is generated from each base line arrangement by scaling up the coordinates of fiber centers, while the fiber diameter remains unchanged in order to study the effects of fiber spacing. Simulation results are compared with the corresponding case of ideally regular fiber arrangement. The most interesting observation is that the slight randomness in the fiber arrangements enhances the band gap phenomenon by introducing a few secondary band gaps adjacent to the primary band gap.

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