دانلود رایگان مقاله لاتین زوال فرسودگی ناشی از رابط بین الکل میکرو پلی وینیل از سایت الزویر
عنوان فارسی مقاله:
زوال فرسودگی ناشی از رابط بین الکل میکرو پلی وینیل (PVA) فیبر و ماتریس سیمان
عنوان انگلیسی مقاله:
Fatigue-induced deterioration of the interface between micro-polyvinyl alcohol (PVA) fiber and cement matrix
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
High strength and/or high stiffness engineered composites, including polymers, metallic composites, ceramics, and cement-based concrete, are widely used in manufacturing and construction industry. As a result of the enhanced strength and stiffness, they suffer from severe brittleness and are prone to fracture. Micro-fibers, either long continuous or short dispersed, are added into matrix to improve the cracking resistance and to increase the fracture toughness of engineered composites [1–4]. Fiber-reinforced cement-based composites (FRCC) represent a special group of fiber-reinforced engineered composites. Compared with aforementioned composites, it is used in a much greater volume to manufacture large-scale components for buildings and infrastructures [5]. For the ease of processing and on-site casting, most FRCC adopt dispersed short fibers instead of aligned continuous fibers. FRCC technology has been developing for almost 50 years. Various types of fibers, including natural fibers [6], carbon fibers [7], metallic fibers [8], and polymeric fibers [9,10], have been adopted for enhancing the fracture toughness, improving material durability [11,12], and even designing new attributes into FRCC. Under fire, for instance, the relatively low melting point of polypropylene (PP) fibers is taken advantage of to release the heat-induced internal vapor pressure and prevent matrix spalling [13]. The high electrical conductivity of carbon fibers is used for creating self-sensing concrete for damage detection [14]. In FRCC, matrix crack propagation is controlled by the post-cracking fiber-bridging, which is fundamentally governed by the fiber-matrix interfacial bond as well as the fiber strength. By the nature of interfacial bond and fiber strength, the fibers used in FRCC can be categorized into two groups: the stiff metallic and carbon fibers, with relatively higher strength and weaker bond to cement matrix, are usually completely pulled out from the matrix during fiber-bridging failure [15,16]. On the contrary, the flexible natural and polymeric fibers, with relatively lower strength and stronger bond to cement matrix, could be ruptured before they are pulled out [17,18]. Compared with the stiff fibers, the fiber-bridging failure of flexible fiber-reinforced system is more complicated as it involves fiber pullout as well as fiber rupture. In many applications, such as pavement, bridge deck, railway slippers, and the supporting structure of offshore windmills, FRCC are subject to fatigue from repeated loads. Herein the fatigue performance of FRCC, especially the fiber-bridging deterioration under repeated loading, is of great importance. The fatigue performance of FRCC, both the stiff fiber-reinforced system [19–21] and the flexible fiber-reinforced system [21–26], have been studied extensively. Compared with normal concrete, the fatigue life of FRC is greatly extended. However, it was observed that FRCC may experience premature failure under fatigue loading. For instance, Jun and Mechtcherine [22,23] compared the PVA fiberreinforced strain-hardening cement-based composites (SHCC) failed by low-cycle cyclic loading to the control group failed by monotonic loading, and found that the crack number was slightly reduced while the crack width was enlarged. Muller et al. [24] studied PVA fiber-reinforced SHCC performance under strain-controlled high-cycle fatigue loading
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کلمات کلیدی:
Fatigue-induced deterioration of the interface between micro-polyvinyl ... https://www.researchgate.net/.../308886320_Fatigue-induced_deterioration_of_the_inter... Official Full-Text Publication: Fatigue-induced deterioration of the interface between micro-polyvinyl alcohol (PVA) fiber and cement matrix on ResearchGate, the ... Engineering Surface Adhered Poly (vinyl alcohol) Physical Hydrogels ... pubs.acs.org/doi/full/10.1021/am3013467 by B Fejerskov - 2012 - Cited by 17 - Related articles Aug 31, 2012 - Rational design and engineering of intelligent interfaces between a ... based on poly(vinyl alcohol), PVA, and demonstrated control over surface ... of microstructured (μS) surface adhered PVA physical hydrogels using ... Influence of Surface Concentration on Poly (vinyl alcohol) Behavior at ... pubs.acs.org/doi/pdf/10.1021/jp502486a by G Tesei - 2014 - Cited by 2 - Related articles May 30, 2014 - The interest in poly(vinyl alcohol) (PVA) in current research activity is focused ... In these micro- devices the characteristics of the interface between the particle .... the shell-confined water in PVA-based microbubbles, a system. Nanomechanical modeling of interfaces of polyvinyl alcohol (PVA ... www.tandfonline.com/doi/abs/10.1080/14786435.2017.1293859 by B Paliwal - 2017 Nanomechanical modeling of interfaces of polyvinyl alcohol (PVA)/clay nanocomposite ... (polymer/clay interface in the interlayer region containing polymer between ... the interface load transfer for larger length scale micromechanical models. Mechanical and physical properties of poly(vinyl alcohol) microfibers ... pubs.rsc.org/en/content/articlepdf/2016/ra/c6ra09519d by F Sharifi - 2016 - Cited by 4 - Related articles Jun 3, 2016 - Poly(vinyl alcohol) (PVA) is a nontoxic, biocompatible, hydrophilic synthetic .... sheath uid, i.e. ethanol, at the interface between the core and. Fatigue-induced deterioration of the interface between micro-polyvinyl ... https://trid.trb.org/view.aspx?id=1428155 by J Qiu - 2016 - Cited by 1 - Related articles Oct 28, 2016 - Specifically, the effect of fatigue-induced deterioration of interface between micro-polyvinyl alcohol (PVA) fiber and cement matrix was studied ... Fatigue-induced deterioration of the interface between micro-polyvinyl ... isi-dl.com/item/137653 Fatigue-induced deterioration of the interface between micro-polyvinyl alcohol (PVA) fiber and cement matrix. sciencedirect.com ... [PDF]ACI MATERIALS JOURNAL TECHNICAL PAPER Micromechanics ... citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.11.1405&rep=rep1...pdf by VC Li - 2004 - Cited by 76 - Related articles reinforced with polyvinyl alcohol (PVA) fiber is investigated in this paper. ... among fiber, matrix, and interface properties.1-4 ... A high-performance polyvinyl.
