Effect of matrix properties on the fatigue damage initiation and its growth in plain woven carbon fabric vinylester composites

Shao, Yongzheng; Okubo, Kimihiro; Fujii, Toru; Shibata, Ou; Fujita, Yukiko

doi:10.1016/j.compscitech.2014.09.010

Cited by 23 publications

(9 citation statements)

References 26 publications

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“…Recognized the importance of fatigue damage pattern, many researches have been done on its mechanisms of CFRP and GFRP laminates [9][10][11][12][13][14][15][16][17][18][19]. It is found that fatigue damage patterns are varied from that under static loading.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the fatigue damage modes in CFRPs and GFRPs have been recognized as combinations of matrix cracking, transverse cracking, interfacial debonding, delamination, fiber breaking, etc. The fatigue failure mechanisms are affected by many factors like the types of fibers [13][14] and resins [15][16], textile techniques [17], surface treatments [18] as well as the fatigue stress ratios [19] and stress levels. Thus, it is essential to investigate the fatigue behavior and mechanism of target material under suitable fatigue loads.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue behavior and failure mechanism of basalt FRP composites under long-term cyclic loads

Zhao

Wang

et al. 2016

International Journal of Fatigue

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This paper studies the fatigue behavior of basalt fiber reinforced epoxy polymer (BFRP) composites and reveals the degradation mechanism of BFRP under different stress levels of cyclic loadings. The BFRP composites were tested under tension-tension fatigue load with different maximum stress levels by an advanced fatigue loading equipment combined with in-situ scanning electron microscopy (SEM). The specimens were under long-term cyclic loads up to 1×10 7 cycles. The stiffness degradation, S-N curves and the residual strength of run-out specimens were recorded during the test. The fatigue strength was predicted with the testing results using reliability methods. Meanwhile, the damage propagation and fracture surface of all specimens were observed and tracked during fatigue loading by an in-situ SEM, based on which damage mechanism under different stress levels was studied. The results show that the prediction of fatigue strength by fitting S-N data up to 2×10 6 cycles is lower than that of the data by 1×10 7 cycles, which reveals that the fatigue strength perdition is highly associated with the long-term run-out cycles and traditional two million run-out cycles cannot accurately predict fatigue behavior. The SEM images reveal that under high level of stress, the critical fiber breaking failure is the dominant damage, while the matrix cracking and interfacial debonding are main damage patterns at the low and

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fatigue behavior and failure mechanism of basalt FRP composites under long-term cyclic loads

Zhao

Wang

et al. 2016

International Journal of Fatigue

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“…) generated after fiber break in single‐fiber fragmentation tests is another significant factor to influence mechanical strength, depending on the interfacial adhesion. And transverse cracks occurred at interface or matrix highly depends on the high interfacial properties of composites . From Fig.…”

Section: Resultsmentioning

confidence: 96%

Improvement for interface adhesion of epoxy/carbon fibers endowed with carbon nanotubes via microwave plasma‐enhanced chemical vapor deposition

Zhang

Liu

et al. 2018

Polymer Composites

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In this article, we utilized a facile approach for growth of carbon nanotubes onto the surface of carbon fibers by microwave plasma‐enhanced chemical vapor deposition to improve the interfacial properties of composites. By adjusting the deposition time, the length and density of carbon nanotubes could be controlled, and the results of Brunauer–Emmett–Teller testing indicated that the specific surface area was increased with the deposition time prolonged, which improve the contact area between fiber and resin matrix. The interfacial shear strength of the composites increased significantly with increasing in deposition time. When the deposited time reached 15 min, the interfacial shear strength of carbon fiber/epoxy composites increased 153%, reaching to 129.92 Mpa. On the basis of investigation for the relationship between the interfacial properties and the micro‐structures of composites, we found that the propagation path of transverse cracks on interface increased with the increasing of interfacial properties. POLYM. COMPOS., 39:E1262–E1268, 2018. © 2018 Society of Plastics Engineers

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“…The fatigue performances of carbon fibre reinforced polymer (CFRP) and glass fibre reinforced polymer (GFRP) have been well‐studied, including the fibre, matrix type, and architecture and manufacturing methods . The generally accepted fatigue mechanism for CFRP and GFRP material consists of matrix cracking, interfacial debonding, delamination, and fibre breakage . Initiation and growth of matrix cracks between the reinforcing fibres lead to a rapid increase in FRP degradation.…”

Section: Introductionmentioning

confidence: 99%

“…[26][27][28] The generally accepted fatigue mechanism for CFRP and GFRP material consists of matrix cracking, interfacial debonding, delamination, and fibre breakage. 29 Initiation and growth of matrix cracks between the reinforcing fibres lead to a rapid increase in FRP degradation. When the matrix cracks extend beyond the fibre/resin interface, debonding occurs, and the increase in degradation in this period remains almost constant.…”

Section: Introductionmentioning

confidence: 99%

Effect of postcuring immersed in water under hydraulic pressure on fatigue performance of large‐diameter pultruded carbon/glass hybrid rod

Xian

2019

Fatigue Fract Eng Mat Struct

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A pultruded carbon fibre core (CFC) and glass fibre shell (GFS) hybrid fiber reinforced polymer (HFRP) rod with the diameter of 19 mm was developed. It was kept immersed in water in a self‐designed pressure chamber device with adjustable hydraulic pressure (20 MPa); after immersion, the tension‐tension fatigue performance was measured at stress levels of 41.7%, 33.4%, and 25.0%. Significant postcuring of resin was observed, resulting in the increase in Tgs for the core and shell layers. There was no significant decrease in the tensile strength of the hybrid rod. The fatigue failure of the hybrid rod was accompanied by debonding of CFC/GFS interface, redistribution of cyclic load, and catastrophic splitting or bursting of GFS. The immersion in water under hydraulic pressure led to a significant increase in fatigue life. The increase in the fatigue life was because of the improvement in interface bonding strength and toughness of the resin owing to the postcuring of the resin. After fatigue, significant degradation in the residual interface bonding strength was observed for the hybrid rods.

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Effect of matrix properties on the fatigue damage initiation and its growth in plain woven carbon fabric vinylester composites

Cited by 23 publications

References 26 publications

Fatigue behavior and failure mechanism of basalt FRP composites under long-term cyclic loads

Fatigue behavior and failure mechanism of basalt FRP composites under long-term cyclic loads

Improvement for interface adhesion of epoxy/carbon fibers endowed with carbon nanotubes via microwave plasma‐enhanced chemical vapor deposition

Effect of postcuring immersed in water under hydraulic pressure on fatigue performance of large‐diameter pultruded carbon/glass hybrid rod

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