Search Results - "David A. Jack"

Nondestructive quantification of internal raster path for additively manufactured components via ultrasonic testing by Amin, Atik, Jack, David A., Ravindranath, Pruthul Kokkada, Fleck, Trevor J.

“…This work investigates the viability of discerning the raster pattern of additively manufactured components using high frequency ultrasonic nondestructive…”
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Automated Characterization of the Ply Stacking Sequence of a Woven Carbon Fiber Composite Using Pulse-Echo Ultrasound by Nathaniel J. Blackman, David A. Jack

“…Carbon fiber composites are a popular design material due to their high specific strength. The directional strength of woven composites can be customized by…”
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Automated Quantification of Raster Orientation of Fused Filament Fabrication Components Using Ultrasonic Testing by Amin, Atik, Jack, David A., Fleck, Trevor J.

“…An automated method for nondestructively characterizing the layer-by-layer raster orientation of additively manufactured components fabricated via the fused…”
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Prediction of the Fiber Orientation State and the Resulting Structural and Thermal Properties of Fiber Reinforced Additive Manufactured Composites Fabricated Using the Big Area Additive Manufacturing Process by Timothy Russell, Blake Heller, David A. Jack, Douglas E. Smith

“…Recent advances in Fused Filament Fabrication (FFF) include large material deposition rates and the addition of chopped carbon fibers to the filament…”
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The effect of inclusion waviness and waviness distribution on elastic properties of fiber-reinforced composites by Tsai, Chao-hsi, Zhang, Chuck, Jack, David A., Liang, Richard, Wang, Ben

“…In this study we investigated the effects of inclusion waviness and its distribution to the effective composite stiffness. Different waviness conditions were…”
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Effectiveness of recent fiber-interaction diffusion models for orientation and the part stiffness predictions in injection molded short-fiber reinforced composites by Agboola, Babatunde O., Jack, David A., Montgomery-Smith, Stephen

“…Two fiber interaction models for predicting the fiber orientation and resulting stiffness of a short-fiber reinforced thermoplastic composite are investigated,…”
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Strength Prediction Sensitivity of Foamed Recycled Polymer Composite Structures due to the Localized Variability of the Cell Density Distribution by Daniel P. Pulipati, David A. Jack

“…The need for novel methods for the reuse of post-industrial/post-consumer polymer solid wastes (PSW) is of increasing societal importance. Unfortunately, this…”
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Strength prediction in single beads of large area additive manufactured short‐fiber polymers by Russell, Timothy, Jack, David A.

“…The use of fiber reinforcement in large area additive manufactured components is of industrial interest due to the ability to enhance the structural properties…”
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Tensile and Compression Strength Prediction and Validation in 3D-Printed Short-Fiber-Reinforced Polymers by Russell, Timothy, Jack, David A.

“…In the current study, a methodology is validated for predicting the internal spatially varying strength properties in a single 3D-printed bead composed of 13%,…”
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A statistical approach for failure analysis involving uncertainty in determining ply orientation by Rahul, Kirtunia, Jack, David A., Smith, Douglas E.

“…This article presents the uncertainty of the part performance due to the estimated ply orientations of a carbon fiber laminate inspected using ultrasound…”
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Nondestructive Inspection and Quantification of Select Interface Defects in Honeycomb Sandwich Panels by Khademi, Mahsa, Pulipati, Daniel P, Jack, David A

“…Honeycomb sandwich panels are utilized in many industrial applications due to their high bending resistance relative to their weight. Defects between the core…”
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High-Resolution Ultrasound to Quantify Sub-Surface Wrinkles in a Woven CFRP Laminate by Amif, Md Admay, Jack, David A

“…Carbon fiber reinforced polymer (CFRP) composites are popular materials in the aerospace and automotive industries because of their low weight, high strength,…”
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Polymer composites–Special issue review for additive manufacturing of composites by Osswald, Tim A., Jack, David A., Thompson, Matthew S.

“…This special issue of Polymer Composites on “Additive Manufacturing of Composites” seeks to provide insight into recent advances in the field of additive…”
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Comparison of Immersion and Portable Ultrasonic Housing to Quantify the Adhesive Bond Thickness and Sizing of Foreign Objects by Blackman, Nathaniel J, Blandford, Benjamin M, Jack, David A

“…High-performance materials, such as carbon fiber laminates, are costly to manufacture and are often used in demanding environments requiring the use of…”
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Automated Foreign Object Detection for Carbon Fiber Laminates Using High-Resolution Ultrasound Testing by Nargis, Rifat Ara, Pulipati, Daniel P, Jack, David A

“…Carbon fiber laminates have become popular in the manufacturing industry for their many desirable properties, like good vibration damping, high…”
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Automated bondline thickness quantification in adhesively joined composites and metals using ultrasound by Pulipati, Daniel P., Kokkada Ravindranath, Pruthul, Jack, David A.

“…The use of adhesively bonded joints between composite panels, metal panels, or between composites and metals are used in the aerospace and automotive…”
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Improvement in the Quantification of Foreign Object Defects in Carbon Fiber Laminates Using Immersion Pulse-Echo Ultrasound by Blackman, Nathaniel J., Jack, David A., Blandford, Benjamin M.

“…This research presents a new technique using pulse echo ultrasound for sizing foreign objects within carbon fiber laminates. Carbon fiber laminates are…”
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Comparison of experimental and modeling results for cure induced curvature of a carbon fiber laminate by Stair, Sarah, Jack, David A.

“…The use of carbon fiber laminated structures has steadily grown in industrial use during recent decades where the part performance is a function of both the…”
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Characterization and Model Validation for Large Format Chopped Fiber, Foamed, Composite Structures Made from Recycled Olefin Based Polymers by Pulipati, Daniel P., Jack, David A.

“…The purpose of this research is to predict the material performance of large format foamed core composite structures, such as crossties or structural timbers,…”
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Bridging the Gap: Correlating Ultrasonically Quantified BVID with the Compressive Strength of CFRP Composites by Van Lear, Rachel E., Ravindranath, Pruthul Kokkada, Pulipati, Daniel P., Fleck, Trevor J., Jack, David A.

“…Carbon fiber laminates are susceptible to impact damage due to the lack of fibers in the direction of impact. Often such damage can be difficult to find with…”
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