Mechanical Characterization of Extended-Chain Polyethylene (ECPE) Fiber-Reinforced Composites

1995 ◽  
Vol 29 (16) ◽  
pp. 2092-2107 ◽  
Author(s):  
Forrest Sloan ◽  
Huy Nguyen
Keyword(s):  
Composite Materials ◽  
Energy Absorption ◽  
Test Methods ◽  
Absorption Capacity ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Energy Absorption Capacity ◽  
Extended Chain ◽  
Reinforcing Fibers

Composite materials reinforced with extended-chain polyethylene (ECPE) fibers are unlike typical stiff and brittle composite materials such as graphite/epoxy or fiberglass. The high ductility and energy absorption capacity of the ECPE reinforcing fibers gives these composites a unique mechanical response which makes them ideally suited for a variety of applications. However, this dissimilarity with more common materials requires special consideration of mechanical properties testing. In this paper, the mechanical behavior of ECPE-fiber-reinforced composites is investigated using standard composite test methods. Results of these tests are presented and discussed based on the properties of the ECPE reinforcing fibers and on the assumptions inherent in the test methods. ECPE/epoxy composites are characterized by high ultimate tensile strength, high tensile modulus, low shear modulus and strength, and viscoelastic response to loading. The highest available combination of fiber strength and strain-to-failure gives this material ductility and energy absorption capacity significantly higher than other common composite materials. Applications of ECPE composites are discussed.

Energy absorption capacity of pseudoelastic fiber-reinforced composites

2014 ◽  
Vol 21 (2) ◽  
pp. 173-179
Author(s):  
Mohammad Sayyar ◽  
Anagi M. Balachandra ◽  
Parviz Soroushian
Keyword(s):  
Energy Absorption ◽  
Metal Matrix ◽  
Inelastic Deformation ◽  
Absorption Capacity ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Energy Absorption Capacity ◽  
Deformation And Failure ◽  
Pull Out

AbstractPseudoelastic fiber-reinforced metal matrix composite with enhanced ductility and energy absorption capacity was developed. This composite system relies on the distributed nature of large pseudoelastic strains to mitigate localization of inelastic deformation and failure, and thus mobilizes a major fraction of volume for effective energy absorption. The pseudoelastic fibers were made of Ni-Ti-Cr alloy used in conjunction with two different matrices, aluminum and copper. Tension and pull-out tests were performed to evaluate the ductility and energy absorption capacity of control and pseudoelastic fiber-reinforced composites. Experimental results confirmed the ability of pseudoelastic fibers to induce distributed inelastic deformation within metal matrix composites for realizing major gains in ductility and energy absorption capacity.

Tensile Testing of Fiber-Reinforced Composites

2004 ◽  
pp. 183-193
Keyword(s):  
Composite Materials ◽  
Tensile Testing ◽  
Tensile Tests ◽  
Test Methods ◽  
Fiber Reinforced Composites ◽  
Engineering Properties ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Inherent Anisotropy ◽  
Advanced Composite Materials

Abstract The characterization of engineering properties is a complex issue for fiber-reinforced composites due to their inherent anisotropy and inhomogeneity. In terms of mechanical properties, advanced composite materials are evaluated by a number of specially designed test methods. This chapter is limited to tensile property test methods. It presents the fundamentals of tensile testing of composite materials. The chapter focuses on tensile testing of laminates and constituent materials, namely, single filaments and tows (untwisted bundles of continuous filaments). It briefly discusses the most common tensile test methods that have been standardized for fiber-reinforced composite materials. The chapter presents the calculations of strength, Young's modulus, and Poisson's ratio for both polymeric-matrix and metal-matrix composites. It discusses the application of tensile tests to design.

Information in United States Patents on works related to ‘Natural Fibers’: 2000-2018

2019 ◽  
Vol 12 (1) ◽  
pp. 4-76 ◽  
Author(s):  
Krittirash Yorseng ◽  
Mavinkere R. Sanjay ◽  
Jiratti Tengsuthiwat ◽  
Harikrishnan Pulikkalparambil ◽  
Jyotishkumar Parameswaranpillai ◽  
...  
Keyword(s):  
United States ◽  
Composite Materials ◽  
Natural Fiber ◽  
Comprehensive Evaluation ◽  
Natural Fibers ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Macro Scale ◽  
Structural Applications

Background: This era has seen outstanding achievements in materials science through the advances in natural fiber-based composites. The new environmentally friendly and sustainability concerns have imposed the chemists, biologists, researchers, engineers, and scientists to discover the engineering and structural applications of natural fiber reinforced composites. Objective: To present a comprehensive evaluation of information from 2000 to 2018 in United States patents in the field of natural fibers and their composite materials. Methods: The patent data have been taken from the external links of US patents such as IFI CLAIMS Patent Services, USPTO, USPTO Assignment, Espacenet, Global Dossier, and Discuss. Results: The present world scenario demands the usage of natural fibers from agricultural and forest byproducts as a reinforcement material for fiber reinforced composites. Natural fibers can be easily extracted from plants and animals. Recently natural fiber in nanoscale is preferred over micro and macro scale fibers due to its superior thermo-mechanical properties. However, the choice of macro, micro, and nanofibers depends on their applications. Conclusion: This document presents a comprehensive evaluation of information from 2000 to 2018 in United States patents in the field of natural fibers and their composite materials.

Study of the Crack Propagation for Particles Reinforced Composite Materials with Different Inclusion Distribution

2012 ◽  
Vol 461 ◽  
pp. 338-342 ◽  
Author(s):  
Da Zhao Deng ◽  
Ji Xiang Luo
Keyword(s):  
Composite Materials ◽  
Crack Propagation ◽  
Engineering Application ◽  
Reference Value ◽  
Voronoi Cell ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Reinforced Composite ◽  
Inclusion Distribution

Based on the Voronoi cell finite element can also reflect fiber reinforced composites interface to take off the layer and matrix crack propagation of the new cell (X-VCFEM cell)[1]. Combined with the re-mesh strategy and grid dynamic technology, Simulated analysis in different inclusion distribution, interface crack propagation for fiber reinforced composites, the results show that for the model with multiple Voronoi cell, The horizontal tension was the largest; For only a Voronoi cell, The size of the horizontal tension was little change.The result was very important reference value for manufacturing process and engineering application of fiber reinforced composite materials.

scholarly journals Tensile Behavior Characteristics of High-Performance Slurry-Infiltrated Fiber-Reinforced Cementitious Composite with Respect to Fiber Volume Fraction

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3335 ◽  
Author(s):  
Seungwon Kim ◽  
Dong Joo Kim ◽  
Sung-Wook Kim ◽  
Cheolwoo Park
Keyword(s):  
Tensile Strength ◽  
Energy Absorption ◽  
Fiber Volume Fraction ◽  
Volume Fraction ◽  
Absorption Capacity ◽  
Fiber Reinforced ◽  
Fiber Volume ◽  
Energy Absorption Capacity ◽  
Direct Tensile ◽  
Direct Tensile Strength

Concrete has high compressive strength, but low tensile strength, bending strength, toughness, low resistance to cracking, and brittle fracture characteristics. To overcome these problems, fiber-reinforced concrete, in which the strength of concrete is improved by inserting fibers, is being used. Recently, high-performance fiber-reinforced cementitious composites (HPFRCCs) have been extensively researched. The disadvantages of conventional concrete such as low tensile stress, strain capacity, and energy absorption capacity, have been overcome using HPFRCCs, but they have a weakness in that the fiber reinforcement has only 2% fiber volume fraction. In this study, slurry infiltrated fiber reinforced cementitious composites (SIFRCCs), which can maximize the fiber volume fraction (up to 8%), was developed, and an experimental study on the tensile behavior of SIFRCCs with varying fiber volume fractions (4%, 5%, and 6%) was carried out through direct tensile tests. The results showed that the specimen with high fiber volume fraction exhibited high direct tensile strength and improved brittleness. As per the results, the direct tensile strength is approximately 15.5 MPa, and the energy absorption capacity was excellent. Furthermore, the bridging effect of steel fibers induced strain hardening behavior and multiple cracks, which increased the direct tensile strength and energy absorption capacity.

Research on the Application of Fiber-Reinforced Composite Materials on Sports Equipments

2014 ◽  
Vol 687-691 ◽  
pp. 4244-4247 ◽  
Author(s):  
Lun Li ◽  
Huang Jing
Keyword(s):  
Composite Materials ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Climbing Wall ◽  
Wall Materials ◽  
Materials Used ◽  
Equipment Performance

Composite materials help to improve the needs of all types of sports equipment performance and lightweight. In recent years, composite materials used in the race bike, a variety of bats, climbing wall materials and other aspects have made new progress. In this paper introduces the composites and the characteristic of fiber-reinforced composite materials and indicate several examples about fiber reinforced composites in sports equipment applications.

scholarly journals Optimization Simulation of the Light Aircraft’s Cockpit Made of Carbon Fiber Reinforced Composites

2017 ◽  
Author(s):  
Pu-Woei Chen ◽  
Chia-Hung Liu
Keyword(s):  
Aluminum Alloy ◽  
Topology Optimization ◽  
Carbon Fiber ◽  
Energy Absorption ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Composites ◽  
Carbon Fiber Reinforced ◽  
The Impact

Due to the demands of personal travels and entertainments, light airplanes and small business aircrafts are developing rapidly. Light airplane structure is simple; however, it lacks crashworthiness design, especially the considerations on the impact of energy absorption. Therefore, in an event of accident, significant damage to passengers will be usually incurred. Airplanes made of composite materials structurally have high specific strength and good aerodynamic configuration. These materials have become the primary choice for new airplane development. This study mainly explores the topology optimization analysis of the light aircraft’s cockpit made of carbon fiber reinforced composites. This paper compares the compression amounts in the original models of composite material and aluminum alloy fuselages with the models after optimization during the crash-landing, in order to investigate the safety of fuselages made of different materials after structural optimization under the dynamic crashing. This study found that the energy absorbed by the aluminum alloy fuselage during crash-landing is still higher than that by the carbon fiber reinforced composites fuselage. On the other hand, the aluminum alloy fuselage after topology optimization could have an energy absorption capability enhanced by 40%, as compared to the that of the original model of aluminum alloy fuselage.

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