Articles

Equibiaxial flexural strength testing of fiber-reinforced ceramics

 In my last column, I discussed uniaxial flexural strength testing of fiber-reinforced ceramics, that is, simple three- or four-point bending of a strip of material of rectangular cross section (see "Learn More," at left). As was noted, the strength of this test specimen is sensitive to machining defects at its edges. Also, in many applications of fiber-reinforced ceramics (and unreinforced ceramics), the stress state is not uniaxial, but rather biaxial.

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Sustainability

2008 Farnborough Airshow Report

 This biennial aerospace showcase underscores the ascendancy of composites in airframes and jet engines.

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ATL and AFP: Signs of evolution in machine process control

Improved machine-control software, placement accuracy and design simulation have made automated fiber placement and tape laying machines truly production-worthy. The evolution, however, still continues.

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Aviation Outlook: Composites in commercial aircraft jet engines

Airlines' need for fuel-efficient flight provides the thrust behind composite lightweighting strategies in jet engine manufacturing.

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Polyurethane long fiber technology (LFT) replaces wood in spa surround

To many consumers, the thought of a relaxing soak in a hot tub is mighty appealing — but the thought of spa maintenance, particularly replacing rotted wood in the spa's cabinet-like enclosure, probably isn't. For spa manufacturer Clearwater Spas (Woodinville, Wash.), that reality and the fact that building decorativ

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Rapid Manufacturing, Part II: Pioneer Applications

Harbingers of what could be a significant trend, these composites manufacturers demonstrate the potential of additive fabrication and several innovative materials in tool-free manufacture of complex components.

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SPE'S AUTOMOTIVE COMPOSITES SHOW PREVIEW

Conference continues growth trend despite tough North American market.

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Composites Pick Up New Applications in Light Trucks

Long a bastion of steel, the tougher-duty pickup segment of the light truck market is warming to the benefits of composites.

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The Internet is your friend

Like almost everyone else, we in the trade publishing business often wonder how we were able to do our jobs prior to the advent of the Internet. But when the World Wide Web first emerged as a viable entity, magazine publishers were wary and unsure of how to integrate the Internet into publishing.

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Rapid Manufacturing, Part I: The Technologies

An outgrowth of rapid prototyping, tool-free additive fabrication is shortening product development cycles for manufacturers of smaller, limited-run composite parts.

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Taking Subjectivity out of Class A Surface Evaluation

Toward the goal of more consistent, repeatable and quantifiable Class A surface analysis, automakers and systems suppliers are developing and employing automated surface inspection tools.

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SAMPE ’08 technology showcase

Billed as the world’s largest advanced materials trade event, SAMPE’s 2008 Symposium and Exhibition returned to Long Beach.

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