Design and Testing
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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FASTIGUE: Empowering digital twins of large-scale composite structures
A 3D finite element technique to resolve the fidelity-versus-speed dilemma of performing fatigue analysis for large composite structures.
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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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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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