Design and Testing
Composite test methods (and specifications) for fiber-reinforced concrete structures
While initially focused on transitioning existing standards published by the American Concrete Institute, the relatively new ASTM Subcommittee D30.10 is developing new standardized test methods and material specifications for FRP composites.
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Notched testing of sandwich composites: The sandwich open-hole flexure test
A second new test method has been standardized by ASTM for determining notch sensitivity of sandwich composites.
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Measuring ply-wise deformation during consolidation using embedded sensors
Strip-type shape sensor method claims real-time measurement of ply-wise deformation.
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Notched testing of sandwich composites: The sandwich open-hole compression test
A new ASTM-standardized open-hole compression test method seeks to determine the notch sensitivity of sandwich composites.
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Material equivalence testing in shared composites databases
In response to traditionally proprietary polymer matrix composites (PMC) qualifications, NCAMP continues its efforts to make material property databases publicly available.
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Glass-coated magnetic microwires for nondestructive composites monitoring
Glass-coated, amorphous microwires combine nanometer to micrometer diameters, enabling embedding into composites without degrading mechanical properties.
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Composite prepreg tack testing
A recently standardized prepreg tack test method has been developed for use in material selection, quality control and adjusting cure process parameters for automated layup processes.
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Improving analyses of composite pressure vessels
Accurate geometry modeling and equivalent material property approximations captured by WoundSim will play a role in improving COPV analyses.
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Determining the equivalency of composite test methods
While time consuming and somewhat subjective, the comparative assessment approach has been proven effective toward assessing composites test method equivalence.
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Composites testing as part of a building block approach, Part 2: Upper building block levels
Testing under the upper levels of the building block approach for composites design depends on the structure’s application and complexity.
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