Finite Element Analysis of the Competition Between Crack Deflection and Penetration of Fiber-Reinforced Composites Using Virtual Crack Closure Technique

Liu, Pengfei; Yang, Yiguo

doi:10.1007/s10443-013-9375-y

Cited by 17 publications

(8 citation statements)

References 17 publications

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“…In addition, electrochemistry was also developed to measure DFO concentration in serum and urine [29]. In previous studies, EDTA or nitriloacetic acid must be added into mobile phase to prevent from unexpected iron complexes [14,15,30,31]. CE is a suitable instrument for detection of DFO and DFR due to the plastic constituted components and platinum electrode.…”

Section: Resultsmentioning

confidence: 99%

Therapeutic deferoxamine and deferiprone monitoring in β‐thalassemia patients’ plasma by field‐amplified sample injection and sweeping in capillary electrophoresis

et al. 2016

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One CE method was established for detecting deferoxamine (DFO) and deferiprone (DFR) in plasma. For β-thalassemia patients, DFO and DFR are major medicines to treat the iron overload caused by blood transfusion. Field-amplified sample injection combined with sweeping was used for sensitivity enhancement in CE. This method was performed on an uncoated fused-silica capillary. After liquid-liquid extraction, the plasma samples were electrokinetically injected into capillary at +10 kV for 180 s. The phosphate buffer (100 mM) containing 50 mM triethanolamine was used as the BGE (pH 6.6). Separation buffer was phosphate buffer (100 mM, pH 3.0) containing 150 mM SDS. This method showed good linearity (r ≥ 0.9960). Precision and accuracy were evaluated by the results of RSD and relative error of intrabatch and interbatch analyses, and all of the absolute values were less than 6.12%. The LODs (S/N = 3) were 200 ng/mL for DFO, and 25 ng/mL for DFR. The LOQ (S/N = 10) of DFO and DFR were 600 and 75 ng/mL, respectively. This method was applied for clinical applications of five β-thalassemia patients.

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Section: Resultsmentioning

confidence: 99%

Therapeutic deferoxamine and deferiprone monitoring in β‐thalassemia patients’ plasma by field‐amplified sample injection and sweeping in capillary electrophoresis

et al. 2016

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“…It can be seen that the wettability of the matrix by carbon fibers is further improved. Generally speaking, chemical interaction between fibers and matrix has a strong influence on the interfacial properties, which can lead to strengthening of the interactions and diminishing the flaws and cracks in the carbon fibers/epoxy interphase and result in mechanical enhancement of composite . When carbon fibers are treated with sizing agent containing GO, there is a possible increasing trend in the chemical interaction of the interface.…”

Section: Resultsmentioning

confidence: 99%

“…For the strong interface, the fibers and matrix fracture together, and the crack cannot easily deflect along the interface and stress impacts the fiber instead of releasing at the interface [31]. As for CF-G1 composite (Fig.…”

Section: Mechanical Properties Of Carbon Fibers/epoxy Compositesmentioning

confidence: 99%

Mechanical properties of carbon fiber composites modified with graphene oxide in the interphase

Jiang

Liu

et al. 2016

Polymer Composites

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The surface topographies of carbon fibers treated by sizing agents with different graphene oxide (GO) content were investigated by scanning electron microscopy. The surface elements compositions of carbon fibers were determined by X‐ray photoelectron spectrometer. The interfacial properties of composites were studied by interfacial shear strength. The thermo‐mechanical properties of two typical specimens (CF‐G0 and CF‐G1 composites) were investigated by dynamic mechanical thermal analysis. The results showed the introduction of GO sheets on carbon fibers surfaces effectively improved the mechanical properties of carbon fibers/epoxy composites. POLYM. COMPOS., 38:2425–2432, 2017. © 2016 Society of Plastics Engineers

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“…And the strong interface was mainly For the strong interface, the fibers and matrix fracture together, and the crack cannot easily deflect along the interface and stress impacts the fiber instead of releasing at the interface. [25] As for CF-Si1 composite (Figure 7(d)), there are some resin and fiber fragments scattered on the fracture surface which were shattered by a powerful force, nevertheless, the interface of fiber and matrix remains closely integrated. Therefore, it can be said that CF-Si1 composite is provided with a stronger interface, which can be confirmed by the results of IFSS and ILSS.…”

Section: Journal Of Adhesion Science and Technology 2161mentioning

confidence: 94%

Mechanical properties of carbon fiber composites modified with nano-SiO₂in the interphase

Zhang

Xie

et al. 2014

Journal of Adhesion Science and Technology

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The performance of carbon fibers-reinforced composites is dependent to a great extent on the properties of fiber-matrix interface. To improve the interfacial properties in carbon fibers/epoxy composites, nano-SiO 2 particles were introduced to the surface of carbon fibers by sizing treatment. Atomic force microscope (AFM) results showed that nano-SiO 2 particles had been introduced on the surface of carbon fibers and increase the surface roughness of carbon fibers. X-ray photoelectron spectroscopy (XPS) showed that nano-SiO 2 particles increased the content of oxygen-containing groups on carbon fibers surface. Single fiber pull-out test (IFSS) and shortbeam bending test (ILSS) results showed that the IFSS and ILSS of carbon fibers/ epoxy composites could obtain 30.8 and 10.6% improvement compared with the composites without nano-SiO 2 , respectively, when the nano-SiO 2 content was 1 wt % in sizing agents. Impact test of carbon fibers/epoxy composites treated by nanoSiO 2 containing sizing showed higher absorption energy than that of carbon fibers/ epoxy composites treated by sizing agent without nano-SiO 2 . Scanning electron microscopy (SEM) of impact fracture surface showed that the interfacial adhesion between fibers and matrix was improved after nano-SiO 2 -modified sizing treatment. Dynamic mechanical thermal analysis (DMTA) showed that the introduction of nano-SiO 2 to carbon fibers surface effectively improved the storage modulus of carbon fibers/epoxy.

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Finite Element Analysis of the Competition Between Crack Deflection and Penetration of Fiber-Reinforced Composites Using Virtual Crack Closure Technique

Cited by 17 publications

References 17 publications

Therapeutic deferoxamine and deferiprone monitoring in β‐thalassemia patients’ plasma by field‐amplified sample injection and sweeping in capillary electrophoresis

Therapeutic deferoxamine and deferiprone monitoring in β‐thalassemia patients’ plasma by field‐amplified sample injection and sweeping in capillary electrophoresis

Mechanical properties of carbon fiber composites modified with graphene oxide in the interphase

Mechanical properties of carbon fiber composites modified with nano-SiO₂in the interphase

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Finite Element Analysis of the Competition Between Crack Deflection and Penetration of Fiber-Reinforced Composites Using Virtual Crack Closure Technique

Cited by 17 publications

References 17 publications

Therapeutic deferoxamine and deferiprone monitoring in β‐thalassemia patients’ plasma by field‐amplified sample injection and sweeping in capillary electrophoresis

Therapeutic deferoxamine and deferiprone monitoring in β‐thalassemia patients’ plasma by field‐amplified sample injection and sweeping in capillary electrophoresis

Mechanical properties of carbon fiber composites modified with graphene oxide in the interphase

Mechanical properties of carbon fiber composites modified with nano-SiO2in the interphase

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Mechanical properties of carbon fiber composites modified with nano-SiO₂in the interphase