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Showing 1 to 9 of 9 for “"Barely Visible Impact Damage"”.
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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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Analysis of After Impact Characteristics and Structural Optimization of CFRP Composite Plate
<p>Low-velocity impact (LVI) on composites 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 …
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Fluid-structure interaction of metallic and composite plates subjected to dynamic loading
… composite materials is theirsusceptibility to impact damage. Even under relatively low velocity impact, compositesare vulnerable to internal damage caused by transverse loads, but unlike metallicstructures, material damage can be hidden within the material and show no form ofexternal damage. In …
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Residual Compressive Strength Prediction of Carbon/Epoxy Laminates Subjected to Low Velocity Impact Damage
<p>Low energy impact damage to a composite structure is difficult to detect and can have profound effects on compressive strengths. Low energy impact damage is sometimes termed as barely visible impact damage (BVID). Detecting BVID is only possible by implementing nondestructive testing (NDT) …
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Compression After Impact Load Prediction in Graphite/Epoxy Laminates Using Acoustic Emission and Artificial Neural Networks
… (ANNs) in predicting the compression after impact (CAI) load of graphite/epoxy laminates from acoustic emission (AE) nondestructive testing (NDT) data. Thirty-four 24-ply bidirectional woven cloth laminate coupons were constructed and impacted at various energy levels ranging from 8 to 20 …
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A critical investigation of the use of infrared thermography in determining the condition of composite materials
… especially in the presence of defects and damage is less understood as they do not follow properties exhibited by metals and their alloy systems. This study thus focusses on establishing methods that could detect these defects and damage in a non-destructive manner such that the inspection …
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Application of fracture mechanics to predict the growth of single and multi-level delaminations and disbonds in composite structures
… methods to capture the complex growth of damage in laminated composites leads to a conservative design approach applied in today's composite aircraft structures. The aim of the presented research was to develop an improved methodology for the failure prediction of laminated composites …
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Damage Assessment and Strength Predictions in S-Glass/Epoxy Laminates Subjected to Low Energy Impact
… are inherently brittle and are thus prone to impact damage. Low energy/velocity impact damage, in particular, can be dangerous because the damage oftentimes goes undetected and can subsequently grow under load. Also known as barely visible impact damage (BVID), this area of concentration …
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Neural Network Prediction of Ultimate Compression After Impact Loads in Graphite-Epoxy Coupons from Ultrasonic C-Scan Images
… could predict the ultimate compressive loads of impact damaged 24-ply graphite-epoxy coupons from ultrasonic C-scan images. The 24-ply graphite-epoxy coupons were manufactured with bidirectional preimpregnated tape and cut into 21 coupons, 4 inches by 6 inches each. The coupons were impacted at …