Design and Testing
The challenge of identifying test procedures for recycled carbon fiber composites
With growing use of recycled carbon fiber composites, the identification of mechanical testing procedures for rCF becomes increasingly important … and challenging.
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Strain measurement in composites testing
Columnist Dan Adams explores the most important considerations and most common methods for strain measurement.
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Mechanical testing of textile composites
Standardized mechanical testing methods abound, but they often focus on composites with unidirectional layers. Here are some modifications to common test methods for testing textile composites.
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Measuring thermoplastic prepreg tape quality for part process control
Low-cost tests measuring dimensions, thermal behavior and consolidation predict CFRTP part quality.
Read MoreEnvironmental testing of composites
Additional testing of polymer matrix composites (PMCs) is often performed in alternate environmental conditions to determine properties related to temperature and moisture sensitivity.
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Design engineering of tailored preforms
Tailored preforming has opened new doors in composites fabrication, but designing for it requires tools that understand and work with this complex process.
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Composite material testing: How do I know if my measured composite properties are correct, or even reasonable?
CW columnist Dan Adams explores methods for determining correctness of measured mechanical properties for fiber-reinforced composites.
Read MoreGlass transition temperature testing of composites
The glass transition temperature of polymer matrix composites (PMCs) is determined by a series of tests at increasing temperatures.
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Overcoming barriers to adoption of structural autocomposites
Although much attention has been focused on material costs and development of high-rate, automated manufacturing processes for structural autocomposites, production of viable products depends on the ability to design and simulate the structures for these exciting new FRP applications.
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Shear testing of high-shear strength composite laminates
CW columnist Dan Adams compares three V-notched shear test configurations used to measure the shear stiffness and shear strength of composite materials.
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