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Showing 1 to 9 of 9 for “"BVID"”.
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Residual Compressive Strength Prediction of Carbon/Epoxy Laminates Subjected to Low Velocity Impact Damage
… termed as barely visible impact damage (BVID). Detecting BVID is only possible by implementing nondestructive testing (NDT) techniques. Depending upon the support conditions, material system, laminate thickness, lay-up orientation, and impactor geometry, velocity, and hardness, the types …
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Damage Control Measures in Composites: Focus on Damage Tolerance of Aerospace Structures
<p>Barely Visible Impact Damage (BVID) in composite materials presents a stealthy yet significant risk to structural integrity, particularly challenging due to its elusive nature. The approach adopted here diverges from traditional methodologies, focusing on the novel application of Digital Image …
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Damage Assessment and Strength Predictions in S-Glass/Epoxy Laminates Subjected to Low Energy Impact
… Also known as barely visible impact damage (BVID), this area of concentration focuses on the small-scale damage that may be very difficult to detect yet can be lethal.</p> <p>The primary emphasis of this research is to predict the residual compressive strength of a 16-ply laminate …
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Application of fracture mechanics to predict the growth of single and multi-level delaminations and disbonds in composite structures
… subjected to barely visible impact damage (BVID). The advantages of fracture mechanics-based methodologies to predict interlaminar failure in composite structures were identified, from which the crack tip element (CTE) approach and the virtual crack closure technique (VCCT) were selected for …
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Neural Network Prediction of Ultimate Compression After Impact Loads in Graphite-Epoxy Coupons from Ultrasonic C-Scan Images
… in order to create barely visible impact damage (BVID). The coupons were then scanned with an ultrasonic C-scan system to create an image of the damaged area. Each coupon was then compressed to failure to determine its ultimate compressive load.</p> <p>Numeric values for each pixel were determined …
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Analysis of After Impact Characteristics and Structural Optimization of CFRP Composite Plate
… may cause Barely Visible Impact Damage (BVID), which is one of the most common damage types and may result in a decrease in strength of the composite. The objectives of this research were (a) to identify the characteristics of a carbon/epoxy composite plate after low-velocity impact, (b) …
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Fluid-structure interaction of metallic and composite plates subjected to dynamic loading
… In some cases, barely visible impact damage (BVID) may occur, whicheven if detected by visual inspection would give no true indication to the severity of theinternal material degradation. Since many composites are being utilised in highperformance applications, it is important that the …
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Compression After Impact Load Prediction in Graphite/Epoxy Laminates Using Acoustic Emission and Artificial Neural Networks
… Joules, generating barely visible impact damage (BVID). Acoustic emission data were acquired as the coupons were compressed to failure. Not having been analyzed by previous experimenters, several noise tests were also performed to determine the impact of external noise on acoustic emission data …
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A critical investigation of the use of infrared thermography in determining the condition of composite materials
… testing to create barely visible impact damage (BVID). The damaged parts were then subjected to inspection using techniques such as pulsed thermography, thermoelastic stress analysis (TSA), immersion ultrasonic testing, microscopy and laser doppler vibrometer (LDV). The aim was to establish TSA …