Fracture toughness (Mode I) characterization of SiO 2 nanoparticle filled basalt/epoxy filament wound composite ring with split-disk test method

2017 ◽  
Vol 119 ◽  
pp. 114-124 ◽  
Author(s):  
Mehmet Turan Demirci ◽  
Necmettin Tarakçıoğlu ◽  
Ahmet Avcı ◽  
Ahmet Akdemir ◽  
İbrahim Demirci
Author(s):  
P C Tse ◽  
S R Reid ◽  
S P Ng

Closed-form solutions from complementary strain energy are derived for the spring stiffnesses of mid-surface symmetric, filament-wound, composite circular rings under unidirectional loading. A three-dimensional finite element analysis (FEA) including the effects of transverse shear has also been applied to study the problem. Four > 45° and four > 75° E-glass/epoxy composite rings of odd numbers of covers were tested. Comparisons of the results obtained from the two methods with experimental data are made and the results are found to be in good agreement. The FEA prediction of stiffness is always higher than the theoretical result. The relationships between the spring stiffnesses and the winding angles and geometry of the filament-wound composite ring are considered and discussed.


2018 ◽  
Vol 206 ◽  
pp. 474-483 ◽  
Author(s):  
William Toh ◽  
Long Bin Tan ◽  
Kwong Ming Tse ◽  
Anthoni Giam ◽  
Karthikayen Raju ◽  
...  

1996 ◽  
Author(s):  
J. Wlodarski ◽  
Charles Pergantis ◽  
Thomas Mulkern ◽  
James Kleinmeyer

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