Raw materials: aluminum, steel and composite materials

Materials, Trends|

The designer of easy aircraft to use composite fibers in the desired direction, and where exactly in the required quantity. The fibers are embedded in a resin to remain in position and provide the necessary support against deformation. Instead, plywood or sheet metal, which allows only one curvature, creator compound, in which the fibers fixed in two directions. (Son and attack), also incorporated in the resin. This has the advantage of freedom in the shape of double curvature, as shown optimal aerodynamic shape and looks very attractive (aesthetic of the service) required. (suite…)

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Simplified design of reinforced concrete buildings


This new, fourth edition presents practicing engineers with timesaving analysis, design, and detailing methods of primary framing members of a reinforced concrete building. Revised and updated to ACI 318-11, it incorporates seismic and wind load provisions to comply with the International Building Code.

All equations, design aids, graphs, and code requirements have been updated to the current codes. Expanded illustrations of the theory and fundamentals and new timesaving design aids were added to include a wider range of concrete strengths. Also contains a new chapter on sustainable design. (suite…)

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