scholarly journals Local Stress Fields in A Unidirectional Fiber-Reinforced Composite with A Non-Homogeneous Interphase Region: Solution

1992 ◽  
Vol 1 (3) ◽  
pp. 096369359200100 ◽  
Author(s):  
K Jayaraman ◽  
K L Reifsnider
Keyword(s):  
Solution Method ◽  
Local Stress ◽  
Fiber Reinforced Composites ◽  
Stress Fields ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Unidirectional Fiber ◽  
Interphase Region ◽  
Reinforced Composite

Attention has been focused recently on the interphase in continuous, unidirectional fiber-reinforced composites. In this study, the interphase region is modeled as a non-homogeneous, orthotropic material with continuously varying properties. A previously proposed solution method is used to determine the local stress fields in the constituents - the fiber, interphase and matrix - and the results are presented.

scholarly journals Local Stress Fields in A Unidirectional Fiber-Reinforced Composite with A Non-Homogeneous Interphase Region: Formulation

1992 ◽  
Vol 1 (2) ◽  
pp. 096369359200100 ◽  
Author(s):  
K Jayaraman ◽  
K L Reifsnider ◽  
Alexander Giacco
Keyword(s):  
Orthotropic Material ◽  
Local Stress ◽  
Fiber Reinforced Composites ◽  
Stress Fields ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Unidirectional Fiber ◽  
Interphase Region ◽  
Reinforced Composite

Attention has been focused recently on the interphase in fiber-reinforced composites. A methodology is proposed to determine the local stress fields in a unidirectional fiber-reinforced composite with a non-homogeneous interphase region. The interphase is modeled as an orthotropic material with continuously varying properties.

scholarly journals Nondestructive Inspection of Thin Basalt Fiber Reinforced Composites Using Combined Terahertz Imaging and Infrared Thermography

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Przemyslaw Lopato ◽  
Grzegorz Psuj ◽  
Barbara Szymanik
Keyword(s):  
Infrared Thermography ◽  
Basalt Fiber ◽  
Nondestructive Inspection ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fusion Algorithm ◽  
Fiber Reinforced Composite ◽  
Dynamic Level ◽  
Reinforced Composite

The inspection of thin basalt fiber reinforced composite materials was carried out using two nondestructive methods: terahertz time domain imaging and infrared thermography. In order to combine the information about the defects arising in examined materials the inspection results were parametrized. In order to acquire more information content, new approximation based features are proposed. Then, a knowledge extraction based multivariate analysis of preselected features’ vector was carried out. Finally, in order to integrate features distributions of representing different dynamic level of information, a multiresolution wavelet based data fusion algorithm was applied. The results are presented and discussed.

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 Mechanical Properties of Banana Fabric and Kenaf Fiber Reinforced Epoxy Composites: Effect of Treatment and Hybridization

2019 ◽  
Vol 8 (10) ◽  
pp. 1870-1874
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Fiber Reinforced Composites ◽  
Synthetic Fiber ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Kenaf Fiber ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

Nowadays, Natural Fiber Reinforced composites (NFCs) are emerging to be a good substitute for synthetic fiber reinforced composites as NFCs have many advantages such as low density, high specific strength, recyclability, low cost and good sound abatement quality etc. Among all types of NFCs, a vast study has been done on banana fiber and kenaf fiber reinforced composite. However, only limited work has been done on the banana fabric, kenaf fiber reinforced composite and the effect of their hybridization on mechanical properties. In this paper, an attempt has been made to study the mechanical properties of the banana fabric, kenaf fiber and hybrid banana fabric/kenaf fiber reinforced composites. Effect of alkali treatment on kenaf fiber reinforced composite is discussed in the paper. For the present work, plain-woven banana fabric and randomly oriented kenaf fiber are used as reinforcement while the epoxy resin is used as a matrix. samples are fabricated using hand lay-up and vacuum bagging method. Curing is done at ambient temperature (250C-300C) for 48h. Tensile, impact and hardness test has been performed on a specimen according to ASTM standards. Improvement in mechanical properties is observed after alkali (6% NaOH) treatment on kenaf fiber reinforced composite. Tensile testing behavior of randomly oriented kenaf fiber composite has been studied using Finite element method and results are compared with experimental investigations. This topic present big potential because it seeks to find solution for sustainable development with environmental concerns.

Creating Esthetic Harmony with Nonloading, Fixed Provisional Restoration using Extracted Teeth after Immediate Implant Placement

2016 ◽  
Vol 17 (4) ◽  
pp. 344-346
Author(s):  
Parth Satwalekar ◽  
Tanushree Satwalekar ◽  
Vasanthi Bondugula ◽  
B Bhuvaneshwari ◽  
KV Harshavardhan ◽  
...  
Keyword(s):  
Clinical Significance ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Implant Placement ◽  
Reinforced Composite ◽  
Immediate Implant ◽  
Provisional Restoration

ABSTRACT Aim To make use of fiber-reinforced composite and the patient's own extracted teeth in fabricating a provisional restoration following immediate implant placement. Background Fiber-reinforced composites offer various possibilities in temporization of osseointegrating implants in the esthetic zone. Technique In this chairside technique, the patient's own extracted teeth with fiber-reinforced composite were used to fabricate a provisional restoration after immediate implant placement. Conclusion A putty index was made before extracting the teeth and placing the implants as planned. The index and crowns of the extracted teeth were used to make a nonloading, esthetic, chairside provisional restoration after immediate implant placement. Clinical significance By using the patient's own teeth for provisionalization immediately after implant placement, acceptance is greatly enhanced. How to cite this article Satwalekar P, Satwalekar T, Bondugula V, Bhuvaneshwari B, Harshavardhan KV, Pasula K. Creating Esthetic Harmony with Nonloading, Fixed Provisional Restoration using Extracted Teeth after Immediate Implant Placement. J Contemp Dent Pract 2016;17(4):344-346.

Evaluation of Sereni Fiber Reinforced Composite

2013 ◽  
Vol 8 (2) ◽  
pp. 155892501300800 ◽  
Author(s):  
Ashish Chauhan ◽  
Balbir Kaith
Keyword(s):  
Chemical Resistance ◽  
Graft Copolymerization ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
High Tensile Strength ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Low Weight ◽  
Acid And Base

Sereni stem fiber, due to low weight and high tensile strength was selected as backbone for graft copolymerization with binary vinyl monomeric mixture to explore its effect on percentage grafting, properties and the behavior of the modified fiber. The graft co-polymers were reinforced in a phenoplast matrix to form fiber reinforced composites and were characterized by XRD, TGA, DTA, SEM and FTIR techniques. Moisture absorbance, chemical resistance in acid and base and assessment of flexural strength, young's modulus, stress at the limit of proportionality, and hardness of the composite were studied in comparison to the phenoplast.

Simulation of the Cracking Behavior for Fiber Reinforced Composite Materials with Different Inclusion Quantity

2012 ◽  
Vol 568 ◽  
pp. 238-241
Author(s):  
Ji Xiang Luo
Keyword(s):  
Composite Materials ◽  
Crack Propagation ◽  
Engineering Application ◽  
Voronoi Cell ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Cracking Behavior ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

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 quantity, interface crack propagation for fiber reinforced composites, the results show that for the model with four,nine,sisteen,twenty-five and thirty-six voronoi cell, The horizontal tension was not the largest; For only a Voronoi cell, The size of the horizontal tension was the largest.The result was very important reference value for manufacturing process and engineering application of fiber reinforced composite materials.

Modeling of Fiber Jamming Phenomena during Processing of Fiber Reinforced Composite Parts

2010 ◽  
Vol 425 ◽  
pp. 31-44
Author(s):  
Alejandro Londoño-Hurtado ◽  
Tim A. Osswald
Keyword(s):  
Research Effort ◽  
Fiber Reinforced Composites ◽  
Fiber Suspensions ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Flexible Fiber ◽  
Current Research Effort ◽  
A Current

A current research effort at the Polymer Engineering Center (PEC) consists on providing the tools required to understand and predict defects that arise during the molding of fiber reinforced composites. This review starts with a comprehensive research summary in the field of computer simulation of composites molding and then presents our current work regarding computer simulations of flexible fiber suspensions

Simulation of the Cracking Behavior for Fiber Reinforced Composite Materials with the Infulence of Depth-Width Ratio and Direction Angle

2012 ◽  
Vol 155-156 ◽  
pp. 846-850
Author(s):  
Ji Xiang Luo
Keyword(s):  
Composite Materials ◽  
Crack Propagation ◽  
Engineering Application ◽  
Fiber Reinforced Composites ◽  
Width Ratio ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Cracking Behavior ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

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 angles and different depth-width ratio, interface crack propagation for fiber reinforced composites, the results show that when 0˚< < 90˚, the horizontal tension increases with the increasing; When 90˚< < 180˚, the horizontal tension decreases with the increasing; And when =90˚, the horizontal tension was the largest; the horizontal tension increases with the depth-width ratio increasing. The result was very important reference value for manufacturing process and engineering application of fiber reinforced composite materials.

scholarly journals Fracture Resistance of Teeth Restored with Bulk-Fill and Fiber-Reinforced Composites in Class II Cavities

2020 ◽  
pp. 239-249
Author(s):  
Gül Keskin ◽  
Zübeyde Uçar Gündoğar ◽  
Gün Burak Tek
Keyword(s):  
Fracture Resistance ◽  
Testing Machine ◽  
Third Molar ◽  
Class Ii ◽  
Composite Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

This study aimed to evaluate the fracture resistance of teeth restored with conventional, bulk-fill, and fiber-reinforced composite materials regarding intact teeth. Standard cavities were prepared on 70 sound third molar teeth. The teeth were randomly divided into six groups: intact teeth, conventional Bis-GMA based composite, fiber-reinforced composite, Bis-GMA based bulk-fill composite, ormocer based bulk-fill composite, glass containing resin-based bulk-fill composite. The data was obtained by a Universal Testing Machine and analyzed statistically. Fracture resistance of the teeth restored with conventional composite was significantly lower than the other groups (p<0.05). The teeth restored with fiber-reinforced composite showed the highest fracture resistance; however, there were no statistically significant differences between intact teeth and teeth restored with fiber-reinforced composite, Bis-GMA based bulk-fill composite, and glass containing resin-based bulk-fill composite (p>0.05). The obtained data showed that restoring teeth with bulk-fill and fiber-reinforced composites could be recommended in Class II cavities.

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