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composite materials

Wood Handbook: Wood as an Engineering Material.pdf

July 21, 2010 · Filed Under Mechanical & Industrial Engineering · Comment  · Tags: , , , , ,

Taken from Abstract: Wood Handbook: Wood as an Engineering Material summarizes information on wood as an engineering material. Presents properties of wood and wood-based products of particular concern to the architect and engineer. Includes discussion of designing with wood and wood-based products along with some pertinent uses.

s p o n s o r e d   l i n k s


Tailoring Artificial Dielectric Materials at Terahertz Frequencies.pdf

December 11, 2009 · Filed Under Physics · Comment  · Tags: ,

Taken from Abstract The Submillimeter Technology Laboratory(STL) at the University of Massachusetts Lowell has developed a methodology of tailoring the complex refractive index for artificial dielectrics at terahertz frequencies. A wide range of precisely controlled optical properties have been achieved for materials such as vinyl acetate, silicone, polyethylene and epoxy resin when combined with powdered loading agents such as boron nitride, silicon, graphite, iron oxide and stainless steel flake. Using this technology, STL has successfully fabricated both narrow-band and wide-band anechoic structures. The method of characterizing materials for the purpose of tailoring their dielectric properties at terahertz frequencies is presented along with several demonstrated applications.

Aston Martin DB9 – A Striking Balance.pdf

November 22, 2009 · Filed Under Aston Martin · Comment  · Tags: ,

Taken from 100% Aston Martin Engineered to be the World’s Finest Sports GT: DB9 is new from the ground up. Every feature has been tailored to make the world’s finest sports GT.
The starting point was to define the ideal dimensions, proportions and materials for the chassis. Aston Martin did not use an adapted platform from an existing family or luxury saloon – the most common starting point for GT cars. This approach can lead to compromise in styling and weight and loss of character.

Fundamentals of Die Casting Design.pdf

November 7, 2009 · Filed Under Mechanical & Industrial Engineering · Comment  · Tags: , , , ,

Taken from Abstract: Die-casting engineers have to compete not only with other die-casting companies, but also against other industries such as plastics, and composite materials. Clearly, the ”black art” approach, which has been an inseparable part of the engineer’s tools, is in need of being replaced by a scientific approach. Excuses that “science has not and never will work” need to be replaced with “science does work”. All technologies developed in recent years are described in a clear, simple manner in this book. All the errors of the old models and the violations of physical laws are shown. For example, the “common” pQ2 diagram violates many physical laws, such as the first and second laws of thermodynamics. Furthermore, the “common” pQ2 diagram produces trends that are the opposite of reality, which are described in this book.
The die casting engineer’s job is to produce maximum profits for the company.
In order to achieve this aim, the engineer must design high quality products at a minimum cost. Thus, understanding the economics of the die casting design and process are essential. These are described in mathematical form for the first time in this volume. Many new concepts and ideas are also introduced. For instance, how to minimize the scrap/cost due to the runner system, and what size of die casting machine is appropriate for a specific project.
The die-casting industry is undergoing a revolution, and this book is part of it. One reason (if one reason can describe the situation) companies such as Doehler Jorvis (the biggest die caster in the world) and Shelby are going bankrupt is that they do not know how to calculate and reduce their production costs. It is my hope that die-casters will turn such situations around by using the technologies presented in this book. I believe this is the only way to keep the die casting professionals and the industry itself, from being “left in the dust.”