The effect of defects in tubes: Part 1. Mode I delamination resistance

1994 ◽  
Vol 1 (5) ◽  
pp. 333-349 ◽  
Author(s):  
P. Davies ◽  
F. Rannou
Keyword(s):  
Mode I ◽  
Delamination Resistance ◽  
Mode I Delamination

A Study on the Fracture Characteristics of Plasma-Treated Graphite/Epoxy Laminated Composites

2006 ◽  
Vol 321-323 ◽  
pp. 869-872 ◽  
Author(s):  
M.H. Kim ◽  
Kyong Yop Rhee ◽  
Young Nam Paik ◽  
S.H. Ryu
Keyword(s):  
Contact Angle ◽  
Double Cantilever Beam ◽  
Treatment Time ◽  
Laminated Composites ◽  
Mode I ◽  
Fracture Characteristics ◽  
Delamination Fracture ◽  
Delamination Resistance ◽  
Fracture Tests ◽  
Mode I Delamination

For a present study, the surfaces of graphite/epoxy prepregs were modified using plasma treatment to improve the delamination resistance behavior of graphite/epoxy laminated composites. The optimal treatment time was determined by measuring the change of contact angle with treatment time. Unidirectional DCB (double cantilever beam) specimens were used in the mode I delamination fracture tests. The delamination resistance curve of regular (untreated) specimen was compared with that of plasma-treated specimen in order to determine the effect of prepreg treatment on the resistance behavior. It was found that contact angle was changed from ~64° to ~47° depending on the treatment time. The contact angle was a minimum for a 30 min treatment time. It was also found that delamination resistance behavior of graphite/epoxy composites was improved about 20%.

A study of mode I delamination resistance of a thermoplastic composite

1992 ◽  
Vol 45 (2) ◽  
pp. 173-179 ◽  
Author(s):  
Jiang Zhou ◽  
Tianbai He ◽  
Binyao Li ◽  
Weilian Liu ◽  
Tianlu Chen
Keyword(s):  
Thermoplastic Composite ◽  
Mode I ◽  
Delamination Resistance ◽  
Mode I Delamination
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