A STUDY ON THE DESIGN PHILOSOPHY AND MATERIALS SELECTION OF COMPOSITE STRUCTURES FOR ROAD DESIGN PROVIDING SMOOTH AND HIGH-FRICTION SURFACE FOR VEHICLES

2017 ◽  
Vol 5 (3) ◽  
pp. 1
Author(s):  
ISON J. LIVINDER ◽  
Keyword(s):  
Composite Structures ◽  
Friction Surface ◽  
Materials Selection ◽  
Design Philosophy ◽  
Road Design ◽  
Selection Of

Selection of Materials and Sensors for Health Monitoring of Composite Structures

2003 ◽  
Vol 785 ◽  
Author(s):  
Seth S. Kessler ◽  
S. Mark Spearing
Keyword(s):  
Health Monitoring ◽  
Lamb Wave ◽  
Composite Structures ◽  
Structural Damage ◽  
Performance Metrics ◽  
Full Range ◽  
Transportation Systems ◽  
Health Monitoring Systems ◽  
The Relationship ◽  
Selection Of

ABSTRACTEmbedded structural health monitoring systems are envisioned to be an important component of future transportation systems. One of the key challenges in designing an SHM system is the choice of sensors, and a sensor layout, which can detect unambiguously relevant structural damage. This paper focuses on the relationship between sensors, the materials of which they are made, and their ability to detect structural damage. Sensor selection maps have been produced which plot the capabilities of the full range of available sensor types vs. the key performance metrics (power consumption, resolution, range, sensor size, coverage). This exercise resulted in the identification of piezoceramic Lamb wave transducers as the sensor of choice. Experimental results are presented for the detailed selection of piezoceramic materials to be used as Lamb wave transducers.

scholarly journals New Laboratory and Pilot Techniques Applied at Mintek in Aid of Furnace Containment System Designs

JOM ◽  
2021 ◽  
Author(s):  
Joalet Dalene Steenkamp ◽  
Kondwani Wesley Banda ◽  
Pieter Johannes Andries Bezuidenhout ◽  
Glen Michael Denton
Keyword(s):  
Pilot Scale ◽  
Industrial Applications ◽  
Raw Material ◽  
Design Philosophy ◽  
Dc Arc Furnace ◽  
Containment System ◽  
Furnace Technology ◽  
Dc Arc ◽  
System Designs ◽  
Selection Of

AbstractThe Pyrometallurgy Division at Mintek is known internationally for the development of applications of direct current (DC) arc furnace technology in smelting applications, more specifically in the smelting of primary resources, i.e., chromite, ilmenite, titanomagnetite, nickel laterite and ores containing precious group metals, and secondary resources, i.e., furnace slag or dust. From a furnace containment perspective, either an insulating or a conductive design philosophy can be applied, irrespective of the raw material being processed. In the initial stages of a project, desktop studies are typically conducted which include the selection of a furnace containment design philosophy, specific to the application. To lower the risk associated with incorrect selection of a design philosophy and/or furnace containment system components, it is prudent to conduct tests on laboratory and pilot scale and to transfer the knowledge gained to industrial applications. The paper presents examples of the laboratory and pilot techniques utilized.

scholarly journals Comparative Study of Sound Transmission Losses of Sandwich Composite Double Panel Walls

2020 ◽  
Vol 10 (4) ◽  
pp. 1543 ◽  
Author(s):  
Chukwuemeke William Isaac ◽  
Marek Pawelczyk ◽  
Stanislaw Wrona
Keyword(s):  
Composite Structures ◽  
Transmission Loss ◽  
Optimization Problems ◽  
Sound Transmission ◽  
Industrial Applications ◽  
Sandwich Composite ◽  
Acoustic Response ◽  
Transmission Losses ◽  
Emission Index ◽  
Selection Of

The increasing motivation behind the recently wide industrial applications of sandwich and composite double panel structures stems from their ability to absorb sounds more effectively. Meticulous selection of the geometrical and material constituents of both the core and panels of these structures can produce highly desirable properties. A good understanding of their vibro-acoustic response and emission index such as the sound transmission loss (STL) is, therefore, a requisite to producing optimal design. In this study, an overview of recent advances in STL of sandwich and composites double panels is presented. At first, some salient explanation of the various frequency and controlled regions are given. It then critically examines a number of parameter effects on the STL of sandwich and composite structures. Literatures on the numerical, analytical and experimental solutions of STL are systematically presented. Efficient and more reliable optimization problems that maximize the STL and minimize the objective functions capable of degrading the effectiveness of the structure to absorb sounds are also provided.

Optimization of Cutting Conditions for Turning of Ductile Materials to Achieve Favourable Chip Form

2018 ◽  
Vol 780 ◽  
pp. 98-104
Author(s):  
Alexander Belyakov ◽  
Stanislav Mikhailov ◽  
Nikolai Kovelenov ◽  
Sergey Danilov
Keyword(s):  
Cutting Parameters ◽  
Cutting Conditions ◽  
Optimal Conditions ◽  
Materials Selection ◽  
Ductile Materials ◽  
Optimal Cutting Parameters ◽  
Selection Of

A technique and supporting software were designed to select optimal conditions for turning of ductile materials. Selection of optimal cutting parameters is based on a number of process requirements, including achieving the favourable chip form.

Study on Sustainable Construction Characteristics of Sichuan Vernacular Architectures

2014 ◽  
Vol 522-524 ◽  
pp. 1641-1644
Author(s):  
Chun Yan Yang ◽  
Shu Min
Keyword(s):  
Natural Environment ◽  
Empirical Approach ◽  
Sustainable Construction ◽  
Materials Selection ◽  
Construction Period ◽  
Ecological Characteristics ◽  
Community Construction ◽  
Social Conditioning ◽  
Selection Of

With rich experience of sustainable construction, Sichuan vernacular architectures are gradually formed in a long Construction period, during which the ancient adapt to natural environment and social conditioning. This thesis summarizes some ecological characteristics of Sichuan vernacular architectures and refines some sustainable characteristics of architectures construction. By using an empirical approach, the sustainable measures of vernacular architectures are preliminarily summarized. The sustainable experience concerning Sichuan vernacular architectures, such as layout, lightening, ventilation, dehumidification, damp-proof and materials selection of roof, are expected to bring some inspirations to modern community construction.

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