Inhomogeneous toughening of carbon fiber/epoxy composite using electrospun polysulfone nanofibrous membranes by in situ phase separation

2008 ◽  
Vol 68 (3-4) ◽  
pp. 987-994 ◽  
Author(s):  
Gang Li ◽  
Peng Li ◽  
Chen Zhang ◽  
Yunhua Yu ◽  
Haiyang Liu ◽  
...  
Keyword(s):  
Phase Separation ◽  
Carbon Fiber ◽  
Epoxy Composite ◽  
Nanofibrous Membranes ◽  
Carbon Fiber Epoxy

DAMAGE EVOLUTION IN NON-CRIMP FABRIC CARBON FIBER/EPOXY MULTI-DIRECTIONAL LAMINATES UNDER QUASI-STATIC TENSION

2021 ◽  
Author(s):  
AADITYA SURATKAR ◽  
JOHN MONTESANO ◽  
JEFFREY WOOD
Keyword(s):  
Carbon Fiber ◽  
Damage Evolution ◽  
Epoxy Composite ◽  
Static Tension ◽  
Transfer Molding ◽  
Rtm Process ◽  
Static Tensile ◽  
Composite Microstructure ◽  
Carbon Fiber Epoxy

An experimental study was performed to characterize the evolution of damage in a unidirectional Non-Crimp Fabric (NCF) carbon fiber/snap-cure epoxy composite under in-plane quasi-static tensile loads. The NCF composites were manufactured using a High Pressure-Resin Transfer Molding (HP-RTM) process and comprised a fast-curing epoxy resin and heavy tow unidirectional carbon fiber NCF layers. Laminates with stacking sequences [0/±45/90] and [±45/0 ] were subjected to axial and transverse quasi-static tensile loads and an in-situ Edge replication (ER) technique was used to capture the damage evolution at predefined intervals. An imprint of the composite microstructure, as observed on the edges of a test coupon, was created on a cellulose acetate replicating tape, which was then observed under the microscope. The onset and progression of ply cracks and delamination, which were the two major damage modes present, were quantified and correlated with the stress-strain curves and changes in stiffness. The influence of stacking sequence and ply thickness are also captured.

Direct observation of micro delamination in graphene oxide incorporated carbon fiber/epoxy composite via in-situ tensile test

2019 ◽  
Vol 177 ◽  
pp. 57-65 ◽  
Author(s):  
Nitai Chandra Adak ◽  
Suman Chhetri ◽  
Satvik Sabarad ◽  
Himadri Roy ◽  
Naresh Chandra Murmu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Fiber ◽  
Tensile Test ◽  
Direct Observation ◽  
Epoxy Composite ◽  
Carbon Fiber Epoxy

scholarly journals Improving flexural and dielectric properties of carbon fiber epoxy composite laminates reinforced with carbon nanotubes interlayer using electrospray deposition

2020 ◽  
Vol 9 (1) ◽  
pp. 1170-1182
Author(s):  
Muhammad Razlan Zakaria ◽  
Hazizan Md Akil ◽  
Mohd Firdaus Omar ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Aslina Anjang Ab Rahman ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Properties ◽  
Carbon Fiber ◽  
Composite Laminates ◽  
Epoxy Composite ◽  
Flexural Modulus ◽  
X Ray Diffraction ◽  
Electrospray Deposition ◽  
Ft Ir ◽  
Carbon Fiber Epoxy

AbstractThe electrospray deposition method was used to deposit carbon nanotubes (CNT) onto the surfaces of woven carbon fiber (CF) to produce woven hybrid carbon fiber–carbon nanotubes (CF–CNT). Extreme high-resolution field emission scanning electron microscopy (XHR-FESEM), X-ray diffraction (XRD), Raman spectroscopy and Fourier transform infrared spectroscopy (FT-IR) were used to analyze the woven hybrid CF–CNT. The results demonstrated that CNT was successfully and homogenously distributed on the woven CF surface. Woven hybrid CF–CNT epoxy composite laminates were then prepared and compared with woven CF epoxy composite laminates in terms of their flexural and dielectric properties. The results indicated that the flexural strength, flexural modulus and dielectric constant of the woven hybrid CF–CNT epoxy composite laminates were improved up to 19, 27 and 25%, respectively, compared with the woven CF epoxy composite laminates.

Observing progressive damage in carbon fiber epoxy laminate composites via 3D in-situ X-ray tomography

2021 ◽  
pp. 107626
Author(s):  
Alejandra M. Ortiz-Morales ◽  
Imad Hanhan ◽  
Jose Javier Solano ◽  
Michael D. Sangid
Keyword(s):  
Carbon Fiber ◽  
Progressive Damage ◽  
Laminate Composites ◽  
X Ray ◽  
Carbon Fiber Epoxy

Structural Health Monitoring for Carbon Fiber/Carbon Nanotube (CNT)/Epoxy Composite Sensor

2006 ◽  
Vol 321-323 ◽  
pp. 290-293 ◽  
Author(s):  
Sang Il Lee ◽  
Dong Jin Yoon
Keyword(s):  
Electrical Resistivity ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Epoxy Composite ◽  
Structural Safety ◽  
Structural Health ◽  
Nanotube Composites ◽  
Carbon Fiber Epoxy

Structural health monitoring for carbon nanotube (CNT)/carbon fiber/epoxy composite was verified by the measurement of electrical resistivity. This study has focused on the preparation of carbon nanotube composite sensors and their application for structural health monitoring. The change of the electrical resistance was measured by a digital multimeter under tensile loads. Although a carbon fiber was broken, the electrical connection was still kept by distributed CNT particles in the model composites. As the number of carbon fiber breakages increased, electrical resistivity was stepwise increased. The CNT composites were well responded with fiber damages during the electro-micromechnical test. Carbon nanotube composites can be useful sensors for structural health monitoring to diagnose a structural safety and to prevent a collapse.

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