Process related mechanical properties of press molded natural fiber reinforced polymers

2009 ◽  
Vol 69 (9) ◽  
pp. 1404-1411 ◽  
Author(s):  
Luisa Medina ◽  
Ralf Schledjewski ◽  
Alois K. Schlarb
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Fiber Reinforced Polymers ◽  
Fiber Reinforced ◽  
Reinforced Polymers

Mechanical Properties of Structural Paper-Polypropylene Composite Laminates

2015 ◽  
Vol 825-826 ◽  
pp. 11-18 ◽  
Author(s):  
Martina Prambauer ◽  
Christian Paulik ◽  
Christoph Burgstaller
Keyword(s):  
Mechanical Properties ◽  
Composite Laminates ◽  
Natural Fiber ◽  
Glass Fibers ◽  
Cellulose Fiber ◽  
Fiber Reinforced Polymers ◽  
Fiber Reinforced ◽  
Reinforced Polymers ◽  
Polypropylene Composites ◽  
Flexural Testing

Natural fiber reinforced polymers have gained increasing interest in research with the aim of replacing conventional reinforcements, such synthetic or glass fibers. In this work, whole paper sheets of copy, filter and newspaper were used for fabricating cellulose fiber reinforced polypropylene composites with MAPP as a coupling agent. By varying the amount and type of paper, the influence of these parameters on the mechanical properties was observed. The laminates were produced by a film hand stacking method and hot pressing. The characterization was carried out by tensile and flexural testing. Remarkable results were obtained for copy and newspaper composites at a fiber content of 30 and 40 vol.-%. In summary, structural paper reinforced composites with attractive mechanical properties were obtained, indicating the high potential of whole paper sheets as polymer reinforcement.

Mechanical properties of fiber reinforced polymer composites: A comparative study of conventional and additive manufacturing methods

2018 ◽  
Vol 52 (23) ◽  
pp. 3173-3181 ◽  
Author(s):  
Kuldeep Agarwal ◽  
Suresh K Kuchipudi ◽  
Benoit Girard ◽  
Matthew Houser
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced Polymers ◽  
Manufacturing Processes ◽  
Fiber Reinforced ◽  
Reinforced Polymers ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites ◽  
Composite Filament

Fiber reinforced polymer composites have been around for many decades but recently their use has started to increase in multiple industries such as automotive, aerospace, and construction. The conventional composite manufacturing processes such as wet lay-up, resin transfer molding, automatic lay ups etc. suffer from a lot of practical and material issues which have limited their use. The mechanical properties of the parts produced by such processes also suffer from variation that causes problems downstream. Composites based additive manufacturing processes such as Fused Deposition Modeling and Composite Filament Fabrication are trying to remove some of the barriers to the use of composites. Additive manufacturing processes offer more design and material freedom than conventional composite manufacturing processes. This paper compares conventional composite processes for the manufacturing of Epoxy-Fiberglass fiber reinforced polymers with composite filament fabrication based Nylon-Fiberglass fiber reinforced polymers. Mechanical properties such as tensile strength, elastic modulus, and fatigue life are compared for the different processes. The effect of process parameters on these mechanical properties for the composite filament fabrication based process is also examined in this work. It is found that the composite filament fabrication based process is very versatile and the parts manufactured by this process can be used in various applications.

Mechanical properties and durability of unconfined and confined geopolymer concrete with fiber reinforced polymers exposed to sulfuric acid

2019 ◽  
Vol 215 ◽  
pp. 1015-1032 ◽  
Author(s):  
Radhwan Alzeebaree ◽  
Abdulkadir Çevik ◽  
Behzad Nematollahi ◽  
Jay Sanjayan ◽  
Alaa Mohammedameen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sulfuric Acid ◽  
Fiber Reinforced Polymers ◽  
Geopolymer Concrete ◽  
Fiber Reinforced ◽  
Reinforced Polymers

scholarly journals FlexFlax Stool: Validation of Moldless Fabrication of Complex Spatial Forms of Natural Fiber-Reinforced Polymer (NFRP) Structures through an Integrative Approach of Tailored Fiber Placement and Coreless Filament Winding Techniques

2020 ◽  
Vol 10 (9) ◽  
pp. 3278 ◽  
Author(s):  
Vanessa Costalonga Martins ◽  
Sacha Cutajar ◽  
Christo van der Hoven ◽  
Piotr Baszyński ◽  
Hanaa Dahy
Keyword(s):  
High Performance ◽  
Natural Fiber ◽  
Filament Winding ◽  
Fiber Reinforced Polymers ◽  
Integrative Approach ◽  
Fiber Reinforced ◽  
Reinforced Polymers ◽  
Fiber Placement ◽  
Flax Fibers ◽  
Performance Requirements

It has become clear over the last decade that the building industry must rapidly change to meet globally pressing requirements. The strong links between climate change and the environmental impact of architecture mean an urgent necessity for alternative design solutions. In order to propose them in this project, two emergent fabrication techniques were deployed with natural fiber-reinforced polymers (NFRPs), namely tailored fiber placement (TFP) and coreless filament winding (CFW). The approach is explored through the design and prototyping of a stool, as an analogue of the functional and structural performance requirements of an architectural system. TFP and CFW technologies are leveraged for their abilities of strategic material placement to create high-performance differentiated structure and geometry. Flax fibers, in this case, provide a renewable alternative for high-performance yarns, such as carbon, glass, or basalt. The novel contribution of this project is exploring the use of a TFP preform as an embedded fabrication frame for CFW. This eliminates the complex, expensive, and rigid molds that are traditionally associated with composites. Through a bottom-up iterative method, material and structure are explored in an integrative design process. This culminates in a lightweight FlexFlax Stool design (ca. 1 kg), which can carry approximately 80 times its weight, articulated in a new material-based design tectonic.

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