Design and Testing
Damage tolerance testing of sandwich composites: The sandwich flexure-after-impact (FAI) test
A second new ASTM-standardized test method assesses the damage tolerance of sandwich composites under flexural loading.
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Multi-scale 3D CT imaging enables digital twinning, high-fidelity simulation of composite structures
Computed tomography (CT) provides highly accurate 3D analysis of internal microstructure, performance simulation of carbon fiber/PEEK satellite strut.
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Damage tolerance testing of sandwich composites: The sandwich CAI test
A new ASTM-standardized test method established in 2022 assesses the compression-loaded damage tolerance of sandwich composites.
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Numerical tool with mean stress correction demonstrated for fatigue life estimation of thermoplastic composites
To aid design of fatigue-resistant structures, Econ Engineering has developed an algorithm to evaluate ply-based cyclic stiffness degradation combined with an FE failure check, validated for a CF/PAEK pressure vessel.
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Interlaminar tensile testing of composites: An update
New test method developments for measuring interlaminar tensile strength address difficulties associated with the ASTM D6415 curved beam flexure and ASTM D7291 flatwise tensile tests.
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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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