Interlaminar crack initiation and growth rate in a carbon-fibre epoxy composite under mode-I fatigue loading

2008 ◽  
Vol 68 (12) ◽  
pp. 2325-2331 ◽  
Author(s):  
A. Argüelles ◽  
J. Viña ◽  
A.F. Canteli ◽  
M.A. Castrillo ◽  
J. Bonhomme
Keyword(s):  
Growth Rate ◽  
Crack Initiation ◽  
Carbon Fibre ◽  
Epoxy Composite ◽  
Fatigue Loading ◽  
Mode I ◽  
Interlaminar Crack

Rate dependence of mode I fracture behaviour in carbon-fibre/epoxy composite laminates

1998 ◽  
Vol 58 (3-4) ◽  
pp. 591-602 ◽  
Author(s):  
Takayuki Kusaka ◽  
Masaki Hojo ◽  
Yiu-Wing Mai ◽  
Tomoaki Kurokawa ◽  
Taketoshi Nojima ◽  
...  
Keyword(s):  
Carbon Fibre ◽  
Composite Laminates ◽  
Fracture Behaviour ◽  
Epoxy Composite ◽  
Rate Dependence ◽  
Mode I ◽  
Mode I Fracture

Delamination Fatigue Properties of Z-Pinned Composites

2014 ◽  
Vol 891-892 ◽  
pp. 197-201
Author(s):  
Khomkrit Pingkarawat ◽  
Adrian P. Mouritz
Keyword(s):  
Growth Rate ◽  
Experimental Investigation ◽  
Carbon Fibre ◽  
Fatigue Resistance ◽  
Volume Content ◽  
Fatigue Properties ◽  
Mode I ◽  
Thickness Direction ◽  
Toughening Mechanisms ◽  
Delamination Growth

This paper presents an experimental investigation into the mode I interlaminar fatigue resistance of carbon fibre-epoxy laminate reinforced in the through-thickness direction with z-pins. The effects of the volume content, diameter and length of z-pins on the interlaminar toughness, fatigue resistance and crack bridging toughening mechanisms are determined. The delamination growth rate also slowed when the volume content or length of the z-pins was increased or the z-pin diameter was reduced.

scholarly journals Modification of Carbon Fibre/Epoxy Composites by Polyvinyl Alcohol (PVA) Based Electrospun Nanofibres

2016 ◽  
Vol 25 (3) ◽  
pp. 096369351602500 ◽  
Author(s):  
Bertan Beylergi̇l ◽  
Metin Tanoğlu ◽  
Engin Aktaş
Keyword(s):  
Fracture Toughness ◽  
Polyvinyl Alcohol ◽  
Carbon Fibre ◽  
Composite Laminates ◽  
Mechanical Performance ◽  
Epoxy Composite ◽  
Epoxy Composites ◽  
Mode I ◽  
Mode I Fracture Toughness ◽  
Electrospun Nanofibres

In this study, the effects of modifying interlaminar region of unidirectional carbon fibre/epoxy composites by the incorporation of electrospun polyvinyl alcohol (PVA) nanofibres were investigated. PVA nanofibres were directly deposited onto the carbon fabrics by electrospinning method to improve mechanical performance of those composites. The features of the electrospun nanofibres were characterized by microscopy techniques. The unidirectional carbon fibre/epoxy composite laminates with/without PVA nanofibre interlayers were manufactured by vacuum-infusion technique in a [0]4 configuration. Tensile, three-point bending, compression, Charpy-impact and Mode-I fracture toughness tests (Double Cantilever Beam (DCB)) were carried out in accordance with ASTM standards to evaluate mechanical performance of the composites. Scanning electron microscopy (SEM) observations were made on the specimens to evaluate microstructural features. It was observed that the carbon fabrics were successfully coated with a thin layer of PVA nanofibres by electrospinning technique. The results showed that PVA nanofibres improve the mechanical properties of unidirectional carbon/epoxy composite laminates when subjected to in-plane loading. On the other hand, PVA nanofibres slightly reduced the mode-I fracture toughness values although they led to more stable crack propagation.

Cryogenic delamination growth in woven glass/epoxy composite laminates under mixed-mode I/II fatigue loading

2011 ◽  
Vol 71 (5) ◽  
pp. 647-652 ◽  
Author(s):  
Yasuhide Shindo ◽  
Masaya Miura ◽  
Tomo Takeda ◽  
Nozomi Saito ◽  
Fumio Narita
Keyword(s):  
Composite Laminates ◽  
Mixed Mode ◽  
Epoxy Composite ◽  
Fatigue Loading ◽  
Mode I ◽  
Delamination Growth
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