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Durability testing of adhesively bonded composites
Current test method development shows potential for the composite wedge test, a standardized durability-based test for adhesively bonded composites.
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Fatigue testing of composites
Fatigue testing may be performed at multiple points during the design of a composite structure. A focus on small-specimen level fatigue test methods, however, suggests a need for more testing method standardization.
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Development of ASTM standards for composites: An insider’s perspective
According to Dan Adams’ inside perspective, two elements determine whether a proposed test method for composite materials becomes an ASTM standard.
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Flexure testing of sandwich composites
Dan Adams assesses the facesheet or core failures for three-point and four-points flexural loading configurations.
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The Single Cantilever Beam test for sandwich composites
After several years of research and development, the Single Cantilever Beam test method is in the process of standardization within ASTM's Committee D30 on Composites.
Read MoreEstimating composite properties using data from similar materials
CW columnist Dan Adams explores methods for estimating composite mechanical properties using similar materials.
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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.
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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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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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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