Results 81 to 90 of about 57,914 (179)

Design and construction of a carbon fiber gondola for the SPIDER balloon-borne telescope

, 2014
We introduce the light-weight carbon fiber and aluminum gondola designed for the SPIDER balloon-borne telescope. SPIDER is designed to measure the polarization of the Cosmic Microwave Background radiation with unprecedented sensitivity and control of ...
Ade, P. A. R., Amiri, M., Benton, S. J., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, C., Contaldi, C. C., Crill, B. P., Doré, O. P., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Gambrel, A. E., Gandilo, N. N., Golwala, S., Gudmundsson, J. E., Halpern, M., Hasselfield, M., Hilton, G. C., Holmes, W. A., Hristov, V. V., Irwin, K. D., Jones, W. C., Kermish, Z. D., Kuo, C. L., MacTavish, C. J., Mason, P. V., Megerian, K. G., Moncelsi, L., Nagy, J. M., Netterfield, C. B., O'Brient, R., Rahlin, A. S., Reintsema, C. D., Ruhl, J. E., Runyan, M. C., Shariff, J. A., Soler, J. D., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., Weber, A. C., Wiebe, D. V., Young, E. Y.   +46 more
core   +1 more source

An improved closed-form solution to interfacial stresses in plated beams using a two-stage approach [PDF]

, 2009
The shear stress and the normal stresses in the thickness direction at interfaces (referred as interfacial shear and transverse normal stresses hereafter) have played a significant role in understanding the premature debonding failure of beams ...
Benachour, Deng, Etman, Garden, Gere, Jian Yang, Jianqiao Ye, Jones, Malek, Mukhopadhyaya, Qiao, Rabinovich, Roberts, Shen, Smith, Stratford, Swamy, T ä ljsten, Teng, Teng, Tounsi, Tounsi, Tounsi, Triantafillou, Yang, Yang   +25 more
core   +1 more source

Improved Flexural Properties of Carbon Fiber‐Reinforced Polyamide Composites for Type IV and V Hydrogen Storage Vessels Utilizing Graphene Nanoplatelets

Polymer Composites, EarlyView.
Manufacturing carbon fiber‐reinforced composites using graphene nanoplatelets for lightweight hydrogen storage vessel application. ABSTRACT This study explores the enhancement of bending properties in carbon fiber‐reinforced polyamide6 (PA6) composites for Type IV and V hydrogen storage vessels through the incorporation of graphene nanoplatelets (GNPs).
Jonghyun Eun, Sun‐Woo Kang, Myeongjin Park, Joon Seok Lee, Hyunchul Ahn   +4 more
wiley   +1 more source

Seismic strengthening of beam-column joints with multidirectional CFRP laminates [PDF]

, 2012
An experimental program was carried out to analyse the potentialities of a technique based on the use of multidirectional CFRP laminates (MDL-CFRP) for the seismic repair and strengthening of reinforced concrete (RC) beam-column joints. This experimental
Barros, J., Coelho, M., Costa, A., Fernandes, P., Melo, J., Sena-Cruz, J., Varum, H.   +6 more
core   +1 more source

Multi-scale gapped smoothing algorithm for robust baseline-free damage detection in optical infrared thermography [PDF]

, 2020
Flash thermography is a promising technique to perform rapid non-destructive testing of composite materials. However, it is well known that several difficulties are inherently paired with this approach, such as non-uniform heating, measurement noise and ...
Hedayatrasa, Saeid, Kersemans, Mathias, Poelman, Gaétan, Segers, Joost, Van Paepegem, Wim   +4 more
core   +2 more sources

Effect of Designed 3D Reinforcement in Mitigating Machining Damage on CFRP Plates

Polymer Composites, EarlyView.
Effect of Edge Tufting on Surface Quality, Damage, and Mechanical Performance in CFRP Machining: A Comparative Topographical and Structural Analysis. ABSTRACT Composite materials made of carbon fiber‐reinforced epoxy (CFRP) are widely used in aerospace fields due to their high strength‐to‐weight ratio. However, due to low out‐of‐plane resistance, these
Thiago Luiz Lara Oliveira, Daniel Brighenti Bortoluzzi, Antônio Carlos Ancelotti Jr   +2 more
wiley   +1 more source

FINITE ELEMENT ANALYSIS OF CFRP REINFORCED CONCRETE SLABS INCLUDING CFRP ANCHORS

, 2023
The flexural reinforcement of slabs with CFRP is a well-established retrofit technique; however, delamination continues to be the primary factor constraining the strength enhancement. Prior studies have demonstrated that CFRP anchors can effectively postpone delamination, yet the complete understanding of the influence of various design variables on ...
Jiménez Ulloa, J.L., Oyanedel, H.S.M.
openaire   +1 more source

Strain Development During Cure of Partially Pre‐Cured Thermosetting Composites Measured With Distributed Fiber Optic Sensors

Polymer Composites, EarlyView.
Schematic representation of the beneficial effect of ply pre‐curing on temperature overshoot, internal strain and warpage during cure of thin and thick thermosetting composites. ABSTRACT Detection of manufacturing‐induced defects in thermosetting composites is crucial to guarantee part quality, safety, and improve manufacturing efficiency.
Francesco Taddei, Giacomo Struzziero, Valentin Ott, Véronique Michaud   +3 more
wiley   +1 more source

Impact and Post‐Impact Properties of Carbon Fiber Fabric Laminates Reinforced With Carbon Nanofibres

Polymer Composites, EarlyView.
Carbon nanofiber addition on the low‐velocity impact response of carbon fiber laminates. ABSTRACT The use of carbon fiber reinforced polymers (CFRPs) is limited by their susceptibility to low‐velocity impact (LVI) damage. This study investigates the effect of incorporating 0.75 wt.% carbon nanofibres (CNFs) into the epoxy matrix of carbon fiber fabric ...
Paulo Santos, Abílio P. Silva, Paulo N. B. Reis   +2 more
wiley   +1 more source

Modeling Fiber Dispersion in a Single‐Screw Extruder for Long Fiber‐Reinforced Thermoplastics

Polymer Composites, EarlyView.
Fiber dispersion throughout the screw channel ABSTRACT Understanding the mechanics of fiber attrition during the plasticizing process is important in predicting the strength of long fiber‐reinforced thermoplastics (LFT) composites. Fiber dispersion has been found to impact fiber damage during processing and therefore final fiber length in the final ...
Hector Sebastian Perez, Paula Hohoff, Florian Hiller, Angel Yanev, Tim Osswald   +4 more
wiley   +1 more source