Creep behavior enhancement of a basalt fiber-reinforced polymer tendon

Shi, Jianzhe; Wang, Xin; Wu, Zhishen; Zhu, Zhiwei

doi:10.1016/j.conbuildmat.2015.07.118

Cited by 66 publications

(18 citation statements)

References 11 publications

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“…The strain increment is also listed in Table 2. As was found, the strain increment is much higher as compared to the ones exposed to 25 • C. Temperature increases the elongation of the resin matrix [17].…”

Section: Creep Behavior Of the Resin Matrixsupporting

confidence: 57%

“…For most materials, other than those which are perfectly linearly elastic and perfectly brittle, failure is likely a nonlinear process, however it is defined [29]. For polymers, composites, and adhesives, it is suggested that the amount of nonlinearity is both a function of the stress level and the time scale [17]. Indeed, various nonlinear theories are in agreement with this observation [30].…”

Section: Creep Behavior Of the Resin Matrixmentioning

confidence: 98%

“…Similar to the epoxy resin, the strain is fast-growing at the initial stage, and then exhibits slow growth with time at all exposure temperatures. This can be explained by the viscoelastic theory of FRP composites due to their composition of linear elastic fibers and viscous resin matrix [9], and the stress redistribution occurring in BFRP under the effects of both elevated temperatures and constant load conditions [17]. At the initial stage, the strain increased by 92 µε for the specimens at 25 • C, and as the temperature increased to 80 • C, 120 • C, and 160 • C, the strain increased gradually by 150 µε, 852 µε, and 1034 µε, respectively.…”

Section: Creep Behavior Of Bfrpmentioning

confidence: 99%

“…In addition, they have high chemical and thermal stability [14]. Shi et al [17] examined the creep behavior of BFRP tendons, and their stress levels were determined to be 0.8f u , 0.78f u , 0.75f u , and 0.7f u . As found, BFRP specimens can sustain a stress level of 0.7f u without fracture within 1000 h. Wang et al [18] studied the creep behavior of BFRP tendons with sustained stress to the tensile strength at 50%, 60%, 65%, 68%, and 70%.…”

Section: Introductionmentioning

confidence: 99%

“…Basalt fiber-based FRP composites are a newly-developed inorganic material, and the creep behavior of BFRP composites is still limited. According to the study [17], a stress level of 0.6 f u with a duration of 3 h is the most appropriate pretension process for BFRP composites at room temperature. If the duration is too short or the level is too low, then the uneven fibers cannot be fully straightened.…”

Section: Introductionmentioning

confidence: 99%

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Creep Behavior of Resin Matrix and Basalt Fiber Reinforced Polymer (BFRP) Plate at Elevated Temperatures

Xian

Rashid

2017

J. Compos. Sci.

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Pre-stressed fiber reinforced polymer (FRP) has great application potential in structural strengthening. However, the elevated temperature resistance of FRPs is always a key concern due to the poor thermal stability of its resin matrix. In this study, the effects of temperature on the creep behavior of the resin matrix and basalt fiber reinforced polymer (BFRP) was experimentally investigated. The tensile stresses were set at 2.6 MPa for the resin matrix and 522 MPa (35% of its ultimate tensile strength (f u )) for BFRP, and the exposure temperatures were 25 • C, 80 • C, 120 • C, and 160 • C. The short-term strain of the resin matrix and BFRP exposed to different exposure temperatures was measured. The variation of the thermal property and interlaminar shear strength (ILSS) of the BFRP were studied. The results indicated that molecular chain disruption and post-cure coexisted. The resin matrix is sensitive to the exposure temperatures, and a remarkable increase of the strain was observed when the exposure temperature exceeded its glass transition temperature (107.5 • C). The resin matrix fractured within 50 seconds when it was exposed to 160 • C. BFRP showed excellent temperature resistance even though the exposure temperature exceeded its glass transition temperature (123.7 • C). Sustained loading led to stress transferring to the basalt fiber in BFRP specimens, especially at elevated temperatures. Stress redistribution caused interfacial damage, and ILSS decreased by 0.5%, 13.6%, and 14.6% for 80 • C, 120 • C, and 160 • C exposure from its original value of 73.5 MPa. Dynamic mechanical thermal analysis (DMTA) was used to explain the post-curing and interface damage of BFRP.

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Section: Creep Behavior Of the Resin Matrixsupporting

confidence: 57%

Section: Creep Behavior Of the Resin Matrixmentioning

confidence: 98%

Section: Creep Behavior Of Bfrpmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Creep Behavior of Resin Matrix and Basalt Fiber Reinforced Polymer (BFRP) Plate at Elevated Temperatures

Xian

Rashid

2017

J. Compos. Sci.

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Kenaf/glass fiber‐reinforced polymer composites: Pioneering sustainable materials with enhanced mechanical and tribological properties

Supian,

Asyraf,

Syamsir

et al. 2024

Polymer Composites

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Hybrid kenaf/glass fiber reinforced polymer composites have emerged as promising structural materials, garnering significant attention due to their unique blend of natural kenaf fibers and synthetic glass fibers. However, despite their potential, there remains a gap in the comprehensive understanding of their quasi‐static mechanical behavior, creep resistance, and fatigue performance. This paper addresses this gap by presenting recent advancements in studying these key properties of hybrid composites. Studies reveal that the combination of kenaf and glass fibers results in enhanced tensile, flexural, and impact strengths compared to individual fiber composites. Additionally, the hybridization offers improved creep resistance, with the glass fibers reinforcing the polymer matrix against deformation under sustained loads. Furthermore, investigations into fatigue properties demonstrate the resilience of hybrid composites to cyclic loading, contributing to prolonged service life in high‐stress environments. By elucidating the interplay between kenaf and glass fibers, this review underscores the potential of hybrid composites in various structural applications. The synergistic effects between natural and synthetic fibers offer a balance between sustainability, performance, and durability, making hybrid kenaf/glass fiber reinforced polymer composites a compelling choice for industries seeking lightweight, high‐performance materials in which aligns with the sustainable development goals (SDGs) especially on Goal 12.Highlights In composite engineering, combining glass and kenaf fibers could cut production costs, yield high‐performance materials, and promote green technology. Substituting part of the glass fiber with kenaf can enhance the strength‐to‐weight ratio and promote greater biodegradability in current synthetic composites. Quasi‐mechanical properties of hybrid kenaf/glass‐based composites was enhanced by optimal stacking sequences, filler addition, and fiber treatment. Failures due to fatigue and creep can be reduced by hybridizing kenaf/glass fiber composites can prevent in polymer composite due to enhance elastic modulus. Enhanced tribological performance of hybrid kenaf/glass‐based composites due to less damage in microstructure via good interlocking of kenaf and glass in matrix.

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Enhancement of pin‐bearing behavior of pultruded FRP profiles by multi‐directional fiber architecture design

Zhang,

Wang,

Liu

et al. 2024

Polymer Composites

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The low resistance of bolted joints in pultruded unidirectional (UD) fiber‐reinforced polymer (FRP) profiles limits the load grade of truss bridges due to shear damage along UD fibers. To address this issue, this study proposes multi‐directional (MD) fiber architecture in FRP profiles to improve the ultimate bearing strength of bolted joints. The digital image correlation shows that the addition of off‐axis fibers in MD FRP profiles prevents shear failure in the UD FRP profile. As a result, the ultimate bearing strengths of MD FRP profiles are enhanced attributed to “off‐axis fiber tie action”. Micro‐computed tomography shows that fiber damage in MD FRP profiles emerged from outer plies, including fiber breakage in 90° and ±45° fibers and fiber kinking in 0° and ±45° fibers. The off‐axis fibers break due to tension when resisting the bearing load in MD FRP profiles. The fiber kinking indicated strength contribution from 0° to ±45° fibers. The fiber breakage and fiber kinking in each ply are dominant in bearing failure instead of delamination, which increases the bearing strength of the pultruded MD FRP profiles. These findings facilitate controlling damage evolution in the pultruded MD FRP profiles and designing high‐resistance bolted joints.Highlights Multi‐directional fibers improved bearing strengths of FRP profiles by 28.5%–33%. Off‐axis fibers bent under pin‐bearing, forming a tie action until breakage. Fiber breakage and kinking in each ply contributed to the bearing failure. Strain localization and redistribution were observed using DIC.

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Creep behavior enhancement of a basalt fiber-reinforced polymer tendon

Cited by 66 publications

References 11 publications

Creep Behavior of Resin Matrix and Basalt Fiber Reinforced Polymer (BFRP) Plate at Elevated Temperatures

Creep Behavior of Resin Matrix and Basalt Fiber Reinforced Polymer (BFRP) Plate at Elevated Temperatures

Kenaf/glass fiber‐reinforced polymer composites: Pioneering sustainable materials with enhanced mechanical and tribological properties

Enhancement of pin‐bearing behavior of pultruded FRP profiles by multi‐directional fiber architecture design

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