scholarly journals Modelowanie i walidacja wytrzymałościowa kompozytowej skorupy nośnej fotela kolejowego

2020 ◽  
Vol 64 (189) ◽  
pp. 7-16
Author(s):  
Łukasz Gołębiowski ◽  
Marcin Siwek ◽  
Marcin Ciesielski ◽  
Andrzej Zagórski ◽  
Sławomir Krauze ◽  
...  
Keyword(s):  
Fiber Reinforce

Przedmiotem prac modelowych i badań doświadczalnych jest kompozytowa skorupa nośna fotela kolejowego. Zaprojektowano kształt geometryczny i strukturę materiałową konstrukcji oraz dobrano materiały. Do budowy skorupy wykorzystano kompozyty włókniste o osnowie polimerowej (kompozyty FRP – Fiber Reinforce Polimer), które są lżejsze w porównaniu ze stalą i jednocześnie zapewniają odpowiednie standardy z zakresu wytrzymałości i bezpieczeństwa. Opracowano obliczeniowy model skorupy i przeprowadzono analizę wytrzymałościową zgodnie z wytycznymi branżowej normy oraz hipotezami wytrzymałościowymi dotyczącymi kompozytów FRP. Obliczenia przeprowadzono za pomocą oprogramowania ANSYS (Ansys Composite PrepPost), bazującego na metodzie elementów skończonych. W artykule przedstawiono analizę wytrzymałościową zoptymalizowanego modelu kompozytowej skorupy nośnej fotela. Na podstawie wytycznych z prac modelowych wytworzono model fizyczny (walidacyjny), w technologii laminowania próżniowego na gorąco. Walidację doświadczalną modelowania z wynikiem pozytywnym przeprowadzono na stanowisku badawczym firmy S.Z.T.K. TAPS – Maciej Kowalski. Słowa kluczowe: konstrukcja fotela kolejowego, kompozyt FRP, test wytrzymałościowy, modelowanie MES, walidacja doświadczalna

Strengthening of Prefab Slab using Fiber Reinforce Composites

2017 ◽  
Vol MCSP2017 (01) ◽  
pp. 27-29
Author(s):  
Gitanjali Biswal ◽  
Manoj Kumar Rath ◽  
Sagarika Panda
Keyword(s):  
Glass Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Structural Members ◽  
Load Bearing ◽  
Concrete Members ◽  
Shrinkage Cracks ◽  
Glass Fiber Reinforced ◽  
New Material ◽  
Fiber Reinforce

The main objective of using strengthening of pre fab slab by wraping with frp to to make it more durable during shock as a modification for the prevention of shrinkage cracks. The aim of research is to strengthening of Pre-fab structures slab using glass fiber reinforced composites. Slabs will act as structural members; provide a sensible application for the new material because they can be casted as load bearing and non-load bearing concrete members.

scholarly journals Performance analysis of the bump beams made of High Strength Steel and Carbon Fiber reinforce plastics

2018 ◽  
Vol 207 ◽  
pp. 03006
Author(s):  
Yi Yao ◽  
Quan Yuan ◽  
Sihuan Fu
Keyword(s):  
Carbon Fiber ◽  
Automobile Industry ◽  
High Strength Steel ◽  
Lightweight Design ◽  
High Strength ◽  
Research Directions ◽  
Deformation And Failure ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Fiber Reinforce

Lightweight and safe are the key research directions of the automobile industry. Bump beam is an important part of the car safety protection and it’s lightweight design has drawn much attention. In this paper, the static strength and the low-speed impact performances of two types of bump beam with the same structure, which made of carbon fiber reinforced plastics (CFRP) and high strength steel (HSS), were investigated. Under the condition of static press, frontal and 40% offset impact, part structural stiffness, component crush intrusion, energy absorption were comparison analyzed. In order to guide the product design, the deformation and failure of CFRP beams with five different laminate structures were simulated under frontal and 40% offset impact. The results indicate that, with the same structure, the properties of CFRP bump beam are generally superior to HSS product, more conducive to lightweight and the optimum design of the laminate is [0° / 60° / 120°]

Finite Element Analysis of Fiber Composite Dental Bridges: The Effect of Length / Depth Ratio and Load Application Method

1999 ◽  
Author(s):  
Michael D. Nowak ◽  
Kim Haser ◽  
A. Jon Goldberg
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Testing ◽  
Fiber Composite ◽  
Single Point ◽  
Element Analysis ◽  
Elastic Range ◽  
Single Force ◽  
Range Testing ◽  
Fiber Reinforce

Abstract Work is continuing in the evaluation of orthotropic fiber reinforce composites for use in the construction of dental bridges. Finite Element Analysis (FEA) models were constructed based upon mechanical testing of end clamped specimens center loaded with a metal indenter. Various length / depth specimens were evaluated in the elastic range, with a variety of load magnitudes. Separate FEA models utilized single point loading, distributed loading, and the construction of a model indenter. Deflections at the loading point demonstrated that all models presented similar findings to those seen in mechanical testing. The similarity of results between the single loading point and the indenter FEA models suggest that either is reasonable for elastic range testing. The significantly shorter CPU run times for the single force models suggest that this may be the best means by which to model orthotropic fiber reinforced dental composites in the elastic range.

Calculation of Flexural Capacity of High-Strength Reinforced Concrete Beams Strengthened with FRP

2011 ◽  
Vol 71-78 ◽  
pp. 815-817 ◽  
Author(s):  
Jiong Feng Liang ◽  
Ze Ping Yang ◽  
Zhi Ming Qiu
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beams ◽  
Engineering Application ◽  
High Strength ◽  
Correlation Equation ◽  
Reinforced Concrete Beams ◽  
Flexural Capacity ◽  
Different Types ◽  
Fiber Reinforce ◽  
Good Agreement

The mechanical properties of high-strength reinforced concrete beams strengthened with FRP ( fiber reinforce polymer) are further investigated theoretically including it s failure mechanism and loadability,based on earlier theoretical works on RC beams. And the correlation equation of flexural capacity on the cross section of high-strength reinforced concrete beams strengthened with FRP is deduced according to different types of failure.The correlation equation is shown to be in good agreement with the experimental results, which can be referred to engineering application.

Quasi-Static Flexural and Tensile Behavior of Glass Fiber Reinforced Polymer

2013 ◽  
Vol 845 ◽  
pp. 302-305
Author(s):  
Syed Azwan ◽  
Behzad Abdi ◽  
Yahya Mohd Yazid ◽  
Ayob Amran
Keyword(s):  
Strain Rate ◽  
Glass Fiber ◽  
Testing Machine ◽  
Tensile Loading ◽  
Tensile Behavior ◽  
Fiber Reinforced ◽  
Loading Test ◽  
Three Point Bending ◽  
Glass Fiber Reinforced ◽  
Fiber Reinforce

In this paper, glass fiber reinforce polymer subject to quasi-static three point bending loading and tensile loading was studied experimentally. Glass fiber reinforced made of chopped strand mat (CSM) were used in this study. Several samples were prepared and tested by using Instron universal testing machine at different strain rate including 1mm/min, 10mm/min and 100mm/min and all of the tests were repeated three times in order to minimize experimental error and the average of the obtained results were used for further analysis. The load-extension curves and stress-strain curve of glass fiber reinforce subject to three point bending and tensile loading test were determined at different strain rate and the obtained results were compared together. As results of this study, it has found that the strain rate has effect on flexural and tensile behavior of glass fiber reinforce.

Study on the Assorted Non-Asbestos Fiber Reinforce Composite by Beater-Addition Process

2005 ◽  
Vol 475-479 ◽  
pp. 1051-1054 ◽  
Author(s):  
Mei Hong Liu ◽  
Zhen Hua Li ◽  
Zhou Rong ◽  
Xinqi Yu ◽  
Ren Liang Cai ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Low Cost ◽  
Health Hazard ◽  
Asbestos Fiber ◽  
Machine Direction ◽  
Excellent Performance ◽  
Manufacture Process ◽  
Ignition Loss ◽  
Fiber Reinforce Composite ◽  
Fiber Reinforce

In order to get rid of health hazard of asbestos fiber, a new kind of non-asbestos fiber reinforce composite by beater-addition process, which is used for sealing and gasket, has been developed to replace traditional asbestos gasket materials. The mechanical properties of the new composite were tested, and the performance between it and asbestos sheet paper were contrasted. Results show that the density, cross direction tensile strength, machine direction tensile strength and ignition loss at temperature of 300°C of the new composite are 1.19g/cm3, 2.62MPa, 3.15MPa and 15.61% respectively, while the performances of asbestos paper produced under the same condition are 1.26g/cm3, 2.87MPa, 3.24MPa and 12.03% respectively. Excellent performance, low cost and simple manufacture process of the new composite make it is possible to substitute traditional asbestos paper and apply widely.

Study on the Assorted Non-Asbestos Fiber Reinforce Composite by Beater-Addition Process

2005 ◽  
pp. 1051-1054
Author(s):  
Mei Hong Liu ◽  
Zhen Hua Li ◽  
Zhou Rong ◽  
Xinqi Yu ◽  
Ren Liang Cai ◽  
...  
Keyword(s):  
Asbestos Fiber ◽  
Fiber Reinforce Composite ◽  
Fiber Reinforce
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