Material Properties and Design Aspects of Folding Bicycle Frame

2011 ◽  
Vol 264-265 ◽  
pp. 777-782 ◽  
Author(s):  
M.A. Maleque ◽  
M.S. Hossain ◽  
S. Dyuti
Keyword(s):  
Material Properties ◽  
Raw Material ◽  
New Materials ◽  
Materials Properties ◽  
Advantages And Disadvantages ◽  
Bicycle Frame ◽  
Successful Design ◽  
Future Direction ◽  
The Relationship ◽  
Comprehensive Study

successful design of folding bicycle should take into account the function, material properties, and fabrication process. There are some other factors that should be considered in anticipating the behavior of materials for folding bicycle. In order to understand the relationship between material properties and design of a folding bicycle and also for the future direction in new materials with new design, a comprehensive study on the design under different conditions are essential. Therefore, a systematic study on the relationship between material properties and design for folding bicycle has been performed. The advantages and disadvantages matrix between conventional bicycle and folding bicycle is presented for better understanding of the materials properties and design. It was found that the materials properties of the folding bicycle frame such as fatigue and tensile strength are the important properties for the better performance of the frame. The relationship between materials properties and design is not straight forward because the behavior of the material in the finished product could be different from that of the raw material. The swing hinge technique could be a better technique in the design for the folding bicycle frame.

Optimized Materials Properties for Organosilicate Glasses Produced by Plasma-Enhanced Chemical Vapor Deposition

2003 ◽  
Vol 766 ◽  
Author(s):  
M.L. O'Neill ◽  
R.N. Vrtis ◽  
J.L. Vincent ◽  
A.S. Lukas ◽  
E.J. Karwacki ◽  
...  
Keyword(s):  
Vapor Deposition ◽  
Material Properties ◽  
Chemical Vapor ◽  
Film Structure ◽  
Structure And Properties ◽  
Materials Properties ◽  
Precursor Structure ◽  
Processing Platform ◽  
The Relationship ◽  
Organosilicate Glasses

AbstractIn this paper we examine the relationship between precursor structure and material properties for films produced from several leading organosilicon precursors on a common processing platform. Results from our study indicate that for the precursors tested the nature of the precursor has little effect upon film composition but significant impact on film structure and properties.

Reverse Engineering of Motorcycle Chain

2011 ◽  
Vol 264-265 ◽  
pp. 1678-1683
Author(s):  
M.A. Maleque ◽  
M.M. Rahman ◽  
M.S. Hossain
Keyword(s):  
Cost Analysis ◽  
Reverse Engineering ◽  
New Product ◽  
New Materials ◽  
Tempered Martensite ◽  
Hardness Tester ◽  
Future Direction ◽  
The Cost ◽  
Martensite Structure ◽  
Comprehensive Study

Reverse engineering often involves taking something apart and analyzing its workings in detail to be used in maintenance or to try to make a new product or component that does the same thing without copying anything from the original. In order to understand the existing design, materials and manufacturing process of a motorcycle chain and also for the future direction in new materials with new design, a comprehensive study on the reverse engineering is essential. Therefore, in this paper, a systematic study on a motorcycle chain reverse engineering is performed. The two types of motorcycle chains (Chain A and Chain B) were destructed and investigated using the metallurgical microscope and hardness tester for microstructural and microhardness examination purposes respectively. It was found that the Chain A showed tempered martensite structure (in the case) with higher hardness value compared to Chain B. The cost analysis of the new proposed motorcycle chain is also given in this paper.

Vibration of Functionally Graded Plates

2006 ◽  
Author(s):  
Serge Abrate
Keyword(s):  
Material Properties ◽  
Natural Frequencies ◽  
Functionally Graded ◽  
Reference Plane ◽  
Reference Surface ◽  
Functionally Graded Plates ◽  
Functionally Graded Plate ◽  
Materials Properties ◽  
Isotropic Plates ◽  
The Relationship

This article considers the free vibration of plates for which materials properties vary continuously though the thickness. First, an examination of results available in the literature led to the discovery that the natural frequencies of such functionally graded plates are proportional to those of isotropic plates. In the usual formulation of existing plate theories, the midplane is taken as the reference surface and the variation in material properties through the thickness leads to coupling between inplane and bending deformations. The second part of this paper shows that it is possible to select a different reference plane so that this coupling is eliminated and the motion of the graded plate is governed by the same equation as that of homogeneous isotropic plates. This explains the relationship between the natural frequencies that was observed in the results presented by previous investigators. The study of functionally graded plate is made much simpler and results available for isotropic plates can be used directly.

NANOLAYERED MAX PHASES FROM ab initio CALCULATIONS

2008 ◽  
Vol 22 (25n26) ◽  
pp. 4495-4499 ◽  
Author(s):  
W. LUO ◽  
C. M. FANG ◽  
R. AHUJA
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Significant Contribution ◽  
Structure And Properties ◽  
New Materials ◽  
Max Phases ◽  
Materials Properties ◽  
Early Transition Metal ◽  
General Relations ◽  
The Relationship

The advancement in new materials processing and fabrication techniques has made it possible to better control the atomistic level of structures in a way, which was not feasible only a decade ago. If one can couple this atomic control with a good understanding of the relationship between structure and properties, this will in the future lead to a significant contribution to the synthesizing of tailor-made materials. In this paper we have focused on, the structurally related nanolayered ternary compounds M N+1 AX N, (MAX) where N = 1, 2 or 3, M is an early transition metal, A is an A-group (mostly IIIA and IVA) element, and X is either C and/or N, which has attracted increasing interest owing to their unique properties. The general relations between the electronic structure and materials properties of MAX phases have been elaborated based on ab initio calculations.

Analysis of Bond and Anchorage Performances of Helical and Twisted Reinforcement Material

2013 ◽  
Vol 539 ◽  
pp. 158-165
Author(s):  
Jun Lin Zhang ◽  
Chun Li Wang
Keyword(s):  
Material Properties ◽  
Theoretical Basis ◽  
Mechanical Analysis ◽  
New Materials ◽  
Theoretical Understanding ◽  
Bond Slip ◽  
Mechanism Model ◽  
Reinforcement Material ◽  
Derivation Formula ◽  
The Relationship

The performance of helical-effect of the helical and twisted material is elaborated in this paper. Through analyzing the parameter of the helical and twisted material, a mechanism model based on the bond of anchorage is built. Furthermore the fundamental derivation formula is done and the sensitivity is analyzed. Based on systematic study of bond anchorage performance of helical and twisted reinforcement material, the mechanical of the helical-effect was theoretically analyzed and quantitatively studied. The relationship between pullout and bond slip was studied by mechanical analysis and mathematical modeling stage by stage, the formula was established and derived. As a result, theoretical understanding of the helical-effect was deepened, providing the theoretical basis for optimization of material properties, geometry parameters and developing new materials.

scholarly journals Fine Distributed Moderating Material with Improved Thermal Stability Applied to Enhance the Feedback Effects in SFR Cores

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Bruno Merk
Keyword(s):  
Thermal Stability ◽  
Fuel Assembly ◽  
Neutron Spectrum ◽  
Fast Reactor ◽  
Material Properties ◽  
Raw Material ◽  
Feedback Effects ◽  
Void Effect ◽  
The Relationship ◽  
Thermal Stability Of

The use of fine distributed moderating material to enhance the feedback effects and to reduce the sodium void effect in sodium-cooled fast reactor cores is described. The influence of the moderating material on the fuel assembly geometry, the neutron spectrum, the feedback effects, the power and burnup distribution, and the transmutation performance is given. An overview on possible materials is provided and the relationship between hydrogen content and thermal stability is described. A solution for the problem of the limited thermal stability of primarily proposed hydrogen-bearing moderating material ZrH1.6is developed by the use of yttrium-mono-hydride. The similarity in the effects reached by ZrH and YH is demonstrated by comparison calculations. The topic is closed by an overview on material properties, manufacturing issues, experience in fast reactors, and a comparison of raw material costs.

Effect of log loading on the performance of wood room

2014 ◽  
Vol 29 (2) ◽  
pp. 201-210
Author(s):  
Ari Isokangas ◽  
Kari Ala-Kaila ◽  
Markku Ohenoja ◽  
Aki Sorsa ◽  
Kauko Leiviskä
Keyword(s):  
Product Quality ◽  
Material Properties ◽  
Raw Material ◽  
Performance Criteria ◽  
Processing Unit ◽  
Level Control ◽  
Paper Mills ◽  
Remarkable Effect ◽  
Loading Process ◽  
Small Wood

Abstract The purpose of this paper is to analyse the log loading process of wood room, which is typically the first processing unit in pulp and paper mills. The aim is to improve the log loading process to obtain production with a constant log flow of well de-iced logs to the debarking drum. This way it is possible to reduce costs and enhance product quality. The research was carried out utilising a log loading simulator. The parameters of the simulation model were selected on the basis of process observations on a mill. The results indicate that it is essential to adjust the process and equipment parameters, raw material properties and truck loader operation together in order to reach the target capacity with minimum costs. Especially the speed of the infeed conveyor affects all performance criteria and should be selected carefully. In addition, wood yard logistics and raw material properties have a remarkable effect on the wood room performance. The results can be utilised in mills to allow the upper level control perform in a planned way so that small wood loss and good product quality can be obtained.

Materials technology: Innovations and progress

Impact ◽  
2020 ◽  
Vol 2020 (2) ◽  
pp. 52-53
Author(s):  
Lucy Sharp
Keyword(s):  
Material Properties ◽  
New Materials ◽  
Medical Problems ◽  
Technology Innovations ◽  
Societal Challenges ◽  
New Material ◽  
Innovative Materials ◽  
The Creation ◽  
Novel Applications

Materials technology is a constantly evolving discipline, with new materials leading to novel applications. For example, new material properties arise from combining different materials into composites. Researching materials can help solve societal challenges, with the creation of innovative materials resulting in breakthroughs in overcoming hurdles facing humankind, including energy challenges and medical problems. Innovative materials breathe new life into industries and spur on scientific and technological discovery.

Hearing Vocation Differently

2018 ◽  
Keyword(s):  
Undergraduate Students ◽  
Affective Learning ◽  
College Campuses ◽  
Deep Roots ◽  
Academic Field ◽  
Multiple Voices ◽  
Faith Traditions ◽  
Future Direction ◽  
The Relationship

Colleges and universities have begun using the language of vocation and calling to help undergraduates think about the future direction of their lives. This language has been employed in both secular and religious contexts, but it has deep roots in a specific theological tradition. Given the increasingly multi-faith context of undergraduate life, many have asked whether this originally Christian terminology can truly become a new vocabulary for higher education. This volume’s 13 contributing scholars identify with a wide variety of faith traditions, including Buddhism, Christianity, Hinduism, Islam, Judaism, and Sikhism. Some claim more than one tradition; others would claim none. Rather than seeking to “translate” Christian language into other perspectives, they reflect on various facets of vocation from the standpoint of their own traditions. Both individually and collectively, they seek to expand the range of vocational reflection and discernment well beyond its traditional Christian origins, addressing themes such as religious pluralism and difference, the importance of multiple voices, the role of affective learning, the relationship between process and result, and the development of an integrated life. The authors recognize that all undergraduate students—regardless of their academic field, religious background, or demographic identity—need to make space for reflection, to overcome obstacles to vocational discernment, and to consider the significance of their own narratives, beliefs, and practices. Accomplishing these goals will require college campuses to reimagine their curricular and co-curricular programming in order to support their students’ interfaith reflections on issues of meaning and purpose, as well as personal identity.

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