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Journal articles on the topic 'Web and foam core'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Chen, Jiye, Hai Fang, Weiqing Liu, Yujun Qi, and Lu Zhu. "Experimental and Numerical Analysis of Nonlinear Flexural Behaviour of Lattice-Web Reinforced Foam Core Composite Sandwich Panels." Advances in Civil Engineering 2018 (November 21, 2018): 1–11. http://dx.doi.org/10.1155/2018/2972931.

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This paper conducted experimental and numerical analysis of the nonlinear flexural behaviour of lattice-web reinforced foam core composite sandwich panels. Composite sandwich panels composed of a polyurethane (PU) foam core with glass fibre-reinforced polymer (GFRP) composites as the face sheets and lattice webs were fabricated through the vacuum infusion moulding process (VIMP). The flexural behaviour of these composite sandwich panels were experimentally investigated under both uniformly distributed and concentrated loading scenarios. The results showed that reinforced lattice webs can signi

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2

Huo, Ruili, Weiqing Liu, Li Wan, Yuan Fang, and Lu Wang. "Experimental Study on Sandwich Bridge Decks with GFRP Face Sheets and a Foam-Web Core Loaded under Two-Way Bending." Advances in Materials Science and Engineering 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/434721.

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In recent years, the sandwich bridge decks with GFRP face sheets and light weight material core have been widely used in the world due to their advantages of low cost, high strength to weight ratios, and corrosion resisting. However, as the bridge decks, most of them are used in foot bridges rather than highway bridges because the ultimate bending strength and initial bending stiffness are relatively low. To address this issue and expand the scope of use, a simple and innovative sandwich bridge deck with GFRP face sheets and a foam-web core, manufactured by vacuum assisted resin infusion proce

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3

Wang, Lu, Zhimin Wu, Weiqing Liu, and Li Wan. "Structural behavior of load-bearing sandwich wall panels with GFRP skin and a foam-web core." Science and Engineering of Composite Materials 25, no. 1 (2018): 173–88. http://dx.doi.org/10.1515/secm-2015-0260.

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AbstractAn innovative load-bearing sandwich wall panel with glass fiber-reinforced polymer (GFRP) skins and a foam-GFRP web core (GSFW wall panels, where “GS” denotes GFRP skin and “FW” denotes foam-GFRP web core), which was manufactured using a vacuum-assisted resin infusion process, was developed in this paper. An experimental study involving nine specimens was conducted to validate the effectiveness of this panel for increasing the axial strength under edgewise compression loading. The effects of web thickness, web spacing, web height, and skin thickness on axial stiffness, displacement duc

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4

Zhang, Jing, Xiamin Hu, Wan Hong, Bing Zhang, and Chengli Zhang. "Experimental Study on Bending Performance of Composite Sandwich Panel with New Mixed Core." MATEC Web of Conferences 275 (2019): 02018. http://dx.doi.org/10.1051/matecconf/201927502018.

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This paper presents an experimental investigation of bending performance of composite sandwich panels with new mixed core, sandwich panels were tested by four-point bending test. Parametric study was conducted to investigate the influence of different core materials on the failure mode, ultimate bearing capacity, stiffness and ductility of composite sandwich panels. The results of the experimental investigation showed that the mixed core can change the failure mode of sandwich panels. The failure mode of wooden panels is characterized by tensile failure of bottom wood, and the failure mode of

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BRISCOE, CASEY R., SUSAN C. MANTELL, and JANE H. DAVIDSON. "BUCKLING OF A PLATE ON A PASTERNAK FOUNDATION UNDER UNIFORM IN-PLANE BENDING LOADS." International Journal of Structural Stability and Dynamics 13, no. 03 (2013): 1250070. http://dx.doi.org/10.1142/s0219455412500708.

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In-plane bending loads occur in many thin-walled structures, including web core sandwich panels (foam-filled panels with interior webs) under transverse loading. The design of such structures is limited in part by local buckling of the thin webs and the subsequent impact on stiffness and strength. However, the core material can have a significant impact on web buckling strength and thus must be considered in design. This paper presents solutions for the buckling strength of simply supported plates under in-plane bending loads. The location of the neutral bending axis is allowed to vary and is

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Cheng, Yuansheng, Tianyu Zhou, Hao Wang, Yong Li, Jun Liu, and Pan Zhang. "Numerical investigation on the dynamic response of foam-filled corrugated core sandwich panels subjected to air blast loading." Journal of Sandwich Structures & Materials 21, no. 3 (2017): 838–64. http://dx.doi.org/10.1177/1099636217700350.

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The ANSYS/Autodyn software was employed to investigate the dynamic responses of foam-filled corrugated core sandwich panels under air blast loading. The panels were assembled from metallic face sheets and corrugated webs, and PVC foam inserts with different filling strategies. To calibrate the proposed numerical model, the simulation results were compared with experimental data reported previously. The response of the panels was also compared with that of the empty (unfilled) sandwich panels. Numerical results show that the fluid–structure interaction effect was dominated by front face regardl

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7

Chen, Zhilin, Yu Zhang, Jun Wang, et al. "Experimental and modeling investigations of the behaviors of syntactic foam sandwich panels with lattice webs under crushing loads." REVIEWS ON ADVANCED MATERIALS SCIENCE 60, no. 1 (2021): 450–65. http://dx.doi.org/10.1515/rams-2021-0040.

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Abstract The composite sandwich structures with foam core and fiber-reinforced polymer skin are prone to damage under local impact. The mechanical behavior of sandwich panels (glass fiber-reinforced polymer [GFRP] skin reinforced with lattice webs and syntactic foams core) is studied under crushing load. The crushing behavior, failure modes, and energy absorption are correlated with the number of GFRP layers in facesheets and webs, fiber volume fractions of facesheets in both longitudinal and transverse directions, and density and thickness of syntactic foam. The test results revealed that inc

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8

Briscoe, Casey R., Susan C. Mantell, and Jane H. Davidson. "Shear buckling in foam-filled web core sandwich panels using a Pasternak foundation model." Thin-Walled Structures 48, no. 6 (2010): 460–68. http://dx.doi.org/10.1016/j.tws.2009.12.005.

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9

Li, Jing, Jun Wang, Bishnu Prasad Yadav, Jiye Chen, Qiang Jin, and Weiqing Liu. "Flexural Behavior of Slab-Rib Integrated Bridge Decks with GFRP Skin and Polyurethane Foam Core." Advances in Materials Science and Engineering 2020 (December 3, 2020): 1–14. http://dx.doi.org/10.1155/2020/3597056.

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This paper presents experimental and analytical studies on flexural behavior of slab-rib integrated Sandwich composite decks. The influences of layers of glass fiber-reinforced polymer (GFRP) facesheets, foam densities, and the existence of webs and cross beams are discussed herein. The test results showed that the existence of vertical webs remarkably improved the debonding of the facesheets from the foam core, thus increasing the ultimate load by 59% compared with the specimens without webs. However, the existence of horizontal webs has insignificant effect on the failure mode and ultimate l

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10

Aimmanee, Sontipee, and Jack R. Vinson. "Analysis and Optimization of Foam-Reinforced Web Core Composite Sandwich Panels Under In-Plane Compressive Loads." Journal of Sandwich Structures & Materials 4, no. 2 (2002): 115–39. http://dx.doi.org/10.1177/1099636202004002030.

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11

Zhou, G., A. J. Forbes, and N. Foster. "Analysis of preconditioned glass fibre reinforced composite sandwich I-beams in bending." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 216, no. 2 (2002): 145–53. http://dx.doi.org/10.1177/146442070221600209.

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The flexural mechanical behaviour of various composite sandwich I-beams has been investigated under quasi-static loading. Both intact and preconditioned I-beam specimens were examined. The intact I-beams had two different support spans. The preconditions included central voids and remote debonds, both embedded at the flange-web intersections, whereas remote, barely visible impact damage (BVID) was introduced on the flange surfaces. It was found that the behaviour of the present I-beams was nearly linear until ultimate failure approached, and that the load-bearing capability exceeded the design

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12

Dawood, Mina, and Leo Peirick. "Connection development and in-plane response of glass fiber reinforced polymer sandwich panels with reinforced cores." Canadian Journal of Civil Engineering 40, no. 11 (2013): 1117–26. http://dx.doi.org/10.1139/cjce-2012-0387.

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This paper presents the findings of an experimental research project that was conducted in two phases to study the behavior of glass fiber reinforced polymer (GFRP) sandwich panels with reinforced cores under in-plane loading conditions. The tested panels consisted of two GFRP face skins separated by a polymeric foam core. The foam core was reinforced with different configurations of through-thickness fiber insertions and through-thickness GFRP web skins. In the first phase the performance of three different types of structural connections was tested — namely, bolted, bonded, and so-called enh

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13

Toygar, M. Evren, Kong Fah Tee, Farshid Khosravi Maleki, and A. Cagla Balaban. "Experimental, analytical and numerical study of mechanical properties and fracture energy for composite sandwich beams." Journal of Sandwich Structures & Materials 21, no. 3 (2017): 1167–89. http://dx.doi.org/10.1177/1099636217710003.

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In this study, the mechanical and fracture behaviour of marine sandwich-structured composite that is manufactured by vacuum-assisted resin infusion process with a PVC foam-web core, and different thicknesses of upper and lower glass fibre-reinforced polymer face sheets used as outer and inner side of the hull have been examined. The properties of PVC core, face sheet material, and composite sandwich structures are presented. Failure modes include sandwich flatwise tension, core flatwise compression, sandwich edgewise compression, and face sheet bending of manufactured composites have been inve

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14

Xia, Yiwei, Xiaoping Li, Yu Peng, Mianheng Lai, and Lu Wang. "Impact and Post-Impact Performance of Sandwich Wall Boards with GFRP Face Sheets and a Web-Foam Core: The Effects of Impact Location." Materials 11, no. 9 (2018): 1714. http://dx.doi.org/10.3390/ma11091714.

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In recent years, load-bearing exterior sandwich wall boards have been adopted in civil engineering. The exterior walls of structures are often exposed to low velocity impacts such as stones, tools, and windborne debris, etc. The ultimate loading capacity, deformation, and ductility of sandwich walls are weakened by impact loads. In this study, the sandwich wall boards consisted of glass fiber reinforced plastic (GFRP) face sheets and a web-foam core. The core of wall boards was not the isotropic material. There was no doubt that the mechanical performance was seriously influenced by the impact

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15

Langbo, Fan, Pu Shuang, Huang Chuanteng, and Han Dun. "Experimental Study on Flexural Properties of New Foamed Concrete Composite Wall Panels." Journal of Civil and Transportation Engineering 1, no. 4 (2024): 78–84. https://doi.org/10.62517/jcte.202406414.

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Foam concrete composite wallboard has the advantages of lightweight, thermal insulation and other advantages, which is mainly used in the wall structure of buildings. This article conducts experimental research on the flexural performance of 12 steel truss composite panels (welded upper and lower chord steel bars and web bars). The research results show that the bending resistance of foam fine aggregate concrete composite slab is significantly improved with the increase of the steel bar diameter, but the bending resistance of the composite wallboard with the load bearing surface of fine aggreg

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16

Liu, Yu, Yefa Hu, Jinguang Zhang, Haixin Liu, and Meng Wan. "Non-Destructive Testing of a Fiber-Web-Reinforced Polymethacrylimide Foam Sandwich Panel with Terahertz Time-Domain Spectroscopy." Sensors 24, no. 6 (2024): 1715. http://dx.doi.org/10.3390/s24061715.

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Terahertz (THz) non-destructive testing can detect internal defects in dielectric materials. However, this technology is mainly used for detecting thin and simple structures at present, lacking validations for the detection effectiveness of internal defects in thicker and more complex structures, such as fiber-web-reinforced composite sandwich panels. In this study, samples of fiber-web-reinforced polymethacrylimide foam sandwich panels, which are, respectively, 20 mm and 30 mm thick, were made to detect the internal debonding, inclusion, pore, and crack defects by the THz time-domain spectros

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17

Wang, Lu, Weiqing Liu, Hai Fang, and Li Wan. "Behavior of sandwich wall panels with GFRP face sheets and a foam-GFRP web core loaded under four-point bending." Journal of Composite Materials 49, no. 22 (2014): 2765–78. http://dx.doi.org/10.1177/0021998314554124.

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18

Sun, Christine (Qin), Dong Zhang, Larry C. Wadsworth, and Mac McLean. "Development of Innovative Cotton-Surfaced Nonwoven Laminates." Journal of Industrial Textiles 31, no. 3 (2002): 179–88. http://dx.doi.org/10.1106/152808302026111.

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Cotton-based nonwovens have been developed at Textiles and Nonwovens Development Center (TANDEC), The University of Tennessee, with the cotton fibers on the surface or in the core layer laminated with meltblown (MB) and/or spunbonded (SB) webs. Both Cotton-Surfaced Nonwovens (CSN) and Cotton-Core Nonwovens (CCN) have excellent soft hand, breathability, absorbency, and tensile properties making them ideal for many medical applications such as isolation gowns, hospital drapes and gowns, shoe covers, head covers, underwear, pillowcases, diaper components (acquisition, core, back sheet), feminine

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19

de Corte, Wouter, Arne Jansseune, Wim van Paepegem, and Jan Peeters. "Elastic Properties and Failure Behavior of Tiled Laminate Composites." Key Engineering Materials 774 (August 2018): 564–69. http://dx.doi.org/10.4028/www.scientific.net/kem.774.564.

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This paper focuses on the elastic properties and the failure behavior of tiled laminate composites. Such laminates, in which the plies are not parallel to the outer surfaces are found in InfraCore® based GFRP panels. This technology is developed for the construction of a robust FRP panel that is applicable for highly loaded structures, e.g. for bridges or lock gates. In general, the drawback in traditional FRP sandwich structures has always been debonding of skin and core. Such a debonding problem may occur after impact, followed by fatigue loading. Through the use of the InfraCore® technology

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20

Mungham, A., O. Anjum, A. Lo, and H. Rosenberg. "LO29: ILearnEM.com: a curation of quality FOAM resources to learn the fundamentals of emergency medicine." CJEM 19, S1 (2017): S37. http://dx.doi.org/10.1017/cem.2017.91.

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Introduction/Innovation Concept: Free Open Access Medical Education (FOAM) is an emerging movement enabling crowdsourced sharing of vast amounts of medical knowledge on the web, especially in the dynamic field of emergency medicine (EM). However, the wide range of FOAM producers and the lack of organization in published FOAM content results in a challenge for learners to find quality resources that meet their educational needs. ILearnEM addresses this by curating content from popular FOAM sites to provide both new and seasoned learners with an organized, topic-structured EM curriculum. Methods

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21

Cohen, Laura B., and Julie M. Still. "A Comparison of Research University and Two-Year College Library Web Sites: Content, Functionality, and Form." College & Research Libraries 60, no. 3 (1999): 275–89. http://dx.doi.org/10.5860/crl.60.3.275.

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The authors examined the library home pages of fifty Ph.D.-granting institutions and fifty two-year colleges to determine the home pages’ purpose as manifested by their content and its placement within the structure of the site. By looking at the library Web sites of contrasting academic institutions, the authors identified those aspects of the sites that reflect institutional character. They further identified a core common content that exists across academic library Web sites independent of the parent institution.

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22

Zarate, Marcos daniel, Carlos Buckle, Renato Mazzanti, and Gustavo Samec. "Improving Open Science Using Linked Open Data: CONICET Digital Use Case." Journal of Computer Science and Technology 19, no. 01 (2019): e05. http://dx.doi.org/10.24215/16666038.19.e05.

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Scientific publication services are changing drastically, researchers demand intelligent search services to discover and relate scientific publications. Publishersneed to incorporate semantic information to better organize their digital assets and make publications more discoverable. In this paper, we present the on-going work to publish a subset of scientific publications of CONICET Digital as Linked Open Data. The objective of this work is to improve the recovery andreuse of data through Semantic Web technologies and Linked Data in the domain of scientific publications.To achieve these goals

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23

Kong, Chang Duk, Hyun Bum Park, Jae Huy Yoon, and Kuk Jin Kang. "Conceptual Design on Carbon-Epoxy Composite Wing of a Small Scale WIG Vehicle." Key Engineering Materials 334-335 (March 2007): 353–56. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.353.

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Conceptual structural design of the main wing for the 20 seats WIG(Wing in Ground Effect)flight vehicle, which will be a high speed maritime transportation system for the next generation in Rep. of Korea, was performed[1,2]. The high stiffness and strength Carbon-Epoxy material was used for the major structure and the skin-spar with a foam sandwich structural type was adopted for improvement of lightness and structural stability. As a design procedure for this study, firstly the design load was estimated through the critical flight load case study, and then flanges of the front and the rear sp

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24

Xie, Zhongyou. "The collapse response of web-core sandwich panels partially filled with metallic foams under drop-weight impact." IOP Conference Series: Materials Science and Engineering 892 (August 4, 2020): 012120. http://dx.doi.org/10.1088/1757-899x/892/1/012120.

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25

Bessho, Yuki, Takehiko Takagi, Atsuhito Seki, and Shinichiro Takayama. "Treatment for Wassel Types V and VI Thumb Polydactyly." Journal of Hand Surgery (Asian-Pacific Volume) 25, no. 02 (2020): 153–57. http://dx.doi.org/10.1142/s2424835520500162.

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Background: Polydactyly of the thumb is the most common congenital anomaly of the hand, but there have been few reports regarding Wassel types V and VI. The purpose of this study is to present our surgical strategies and outcomes for cases of Wassel types V and VI polydactyly of the thumb. Methods: Twenty-nine thumbs of 29 patients were included in this study; 17 cases were Wassel type V and 12 cases were type VI. Our strategies for initial surgery were appropriate tendon and muscle relocations. Opponensplasty with the abductor digiti minimi or the flexor digitorum superficialis and osteotomy

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26

La Barre, Kathryn. "Returning the (faceted) gaze: Reflections on representation, meaning and form." NASKO 3, no. 1 (2011): 130. http://dx.doi.org/10.7152/nasko.v3i1.12797.

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This brief position paper is the central narrative in a theoretic-historical triptych. The first two documents: A (Faceted) Semantic Web? (La Barre, 2011) and Traditions of Facet Theory or a Garden of Forking Paths? (La Barre, forthcoming) amplify a question Brian Vickery posed to the author in 2005. The current proposal, deeply entwined in the same narrative, seeks to continue the agenda of articulation for a primarily North American audience. Instead of description and comparison, a starkly different analytical framework – Walter Benjamin’s notion of ‘aura’ – is deployed to interrogate facet

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27

Silva, Tiago, Luís Correia, Mozhdeh Dehshirizadeh, and José Sena-Cruz. "Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels." Materials 15, no. 7 (2022): 2536. http://dx.doi.org/10.3390/ma15072536.

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This work was developed within the scope of the research project “Easyfloor—Development of composite sandwich panels for building floor rehabilitation”, which aims at developing an innovative hybrid sandwich panel as an alternative construction system to conventional floor solutions, mainly for building rehabilitation. The developed hybrid sandwich panel is composed of a top face layer of steel-fibre-reinforced self-compacting concrete (FRC), a core of polyurethane (PUR) closed-cell foam, a bottom face sheet, and lateral webs of glass-fibre-reinforced polymer (GFRP). Full-scale experimental te

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28

Shalbafan, Ali, Jan Luedtke, Johannes Welling, and Arno Fruehwald. "Physiomechanical properties of ultra-lightweight foam core particleboard: different core densities." Holzforschung 67, no. 2 (2013): 169–75. http://dx.doi.org/10.1515/hf-2012-0058.

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Abstract Ultra-lightweight foam core particleboards have been produced in a novel one-step process with resinated wood particles for the faces and expandable polystyrene (EPS) as core layer material. The mechanical and physical properties of panels were investigated in terms of the different foam core densities and press parameters (temperature, pressing and foaming time). The bending strength properties of the panels were not significantly changed with increasing foam core density from 80 to 120 kg m-3. Panels produced at a press temperature of 130°C (1-EPS) have an improved core-face interfa

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29

Al-Waily, Muhannad, Hussam Raad, and Emad Kadum Njim. "Free Vibration Analysis of Sandwich Plate-Reinforced Foam Core Adopting Micro Aluminum Powder." Physics and Chemistry of Solid State 23, no. 4 (2022): 659–68. http://dx.doi.org/10.15330/pcss.23.4.659-668.

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Analytical study of free vibration behavior of foam core sandwich plates strengthened with Aluminum micro spherical powder were presented in this paper. Sandwich plate with polyurethane foam core sandwiched between two Aluminum faces. To calculate the natural frequencies, use Kirchhoff theory to drive the equation of sandwich plate vibration. The stiffness characteristics of a foam-Aluminum core were evaluated by micro particle composite equations. The findings reveal that the impact of filling foam is effective, according to the free vibration analysis, the sandwich plate's free vibration and

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30

Nia, A. Alavi, and M. Kazemi. "Experimental study of ballistic resistance of sandwich targets with aluminum face-sheet and graded foam core." Journal of Sandwich Structures & Materials 22, no. 2 (2018): 461–79. http://dx.doi.org/10.1177/1099636218757669.

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In this research, we have investigated the ballistic resistance of sandwich structures with aluminum face-sheet and graded polyurethane foam core with different densities. The effects of graded changes of core foam density and the effect of the sequence of foam layers with different densities on energy absorption and ballistic limit of sandwich structures under the impact of hemispherical nose projectiles at high speeds (160 to 300 m/s) are studied. The results of this study showed that increasing the density and thickness of the foam core leads to increase in the ballistic limit and energy ab

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31

Wang, Ying Wu, Xiao Qing Zuo, and Xian Ning Chen. "Preparation and Sound Absorption Property of Al-Si12 Alloy Foam Core Muffler." Advanced Materials Research 183-185 (January 2011): 1687–91. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.1687.

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Al-Si12 alloy foams were fabricated by filtration method, and the Al-Si12 alloy foam core mufflers were made by using the fabricated Al-Si12 alloy foams. The preparation and sound absorption property of Al-Si12 alloy foam core muffler has been studied. The results show that sound absorption property of Al-Si12 alloy foam core muffler increases with the decreasing of pore diameter and the widening of the pore diameter range of Al-Si12 alloy foam core. Being superior to conventional sound-absorbing materials core mufflers, Al-Si12 alloy foam core muffler especially fits in noise control in hot,

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32

Jia, Jiale, and Shi Yan. "Fabrication and low-velocity impact response of pyramidal lattice stitched foam sandwich composites." Science and Engineering of Composite Materials 27, no. 1 (2020): 245–57. http://dx.doi.org/10.1515/secm-2020-0025.

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AbstractIn this study, the foam sandwich panels were manufactured by integrating top facesheet and bottom facesheet with pyramidal lattice stitched core to overcome the weak interface between the core and skins of the sandwich structures. Low-velocity impact test and numerical simulation were conducted to reveal the failure mechanisms and energy absorption capacity at sandwich composite with foam core, different strut stitched foam core under different impact energy. The experimental results show showed that the strut core can improve the impact resistance of the specimen, and which is closely

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Xie, Wei, Fei Xu, and Hui Ming Yang. "Observations on Mechanics Properties of Stitched Foam-Core Sandwich by Flexural Testing." Advanced Materials Research 487 (March 2012): 337–41. http://dx.doi.org/10.4028/www.scientific.net/amr.487.337.

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Stitched foam-core sandwich structure is a new light weight sandwich structure material. In this paper, flexural testing was performed. For comparison purposes, the stitched foam-core sandwich structure with different stitch density and the unstitched foam-core sandwich structure were tested. The experimental results show the maximum failure loads was decreased owing to stitch for the flexural testing. The bending stiffness increases for stitched foam-core sandwich structure.

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Almula, Thamir Aunal Deen Mohammed Sheet, Yahya Mohd Yazid, and Ayob Amran. "Mechanical Behavior of Functionally Graded Sandwich Hollow Cylinders under Internal Pressure." Advanced Materials Research 845 (December 2013): 360–66. http://dx.doi.org/10.4028/www.scientific.net/amr.845.360.

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In this investigation, the mechanical behavior of sandwich hollow cylinders under internal pressure is carried out numerically. Functionally Graded (FG) foam core sandwich hollow cylinders are fabricated by employing filament winding technique with [±55] carbon fiber/epoxy as skins with the FG foam core made using centrifugal casting technique of polyurethane foam with epoxy resin. A finite element (FE) model is developed employing a FE commercial code to determine the stresses and deformations. Numerical analysis is performed to find the effect of one particular functional grading on the defo

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35

Hagerty, James D. "Reinforced foam core acoustic baffle." Journal of the Acoustical Society of America 98, no. 3 (1995): 1255. http://dx.doi.org/10.1121/1.413530.

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36

OKSANEN, ANTTI, TUOMO HJELT, JANI LEHMONEN, TIMO RANTANEN, JAAKKO ASIKAINEN, and KRISTIAN SALMINEN. "New opportunities in the paper and nonwovens industries with foam-assisted web forming and chemical application." January 2023 22, no. 1 (2023): 61–66. http://dx.doi.org/10.32964/tj22.1.61.

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Foam-assisted web forming and chemical application technologies have great potential to improve manufacturing efficiency and product quality in the paper and nonwovens industries. In this study, the benefits of foam forming and foam-assisted application of chemicals were demonstrated in a pilot machine trial. Uniform high-bulk webs of unrefined bleached softwood kraft pulp (BSKP) and viscose fibers were manufactured by foam forming. It was shown that foam formed low-grammage and high-bulk viscose fiber webs can be strengthened by foam-assisted application of latex onto the wet web. Correspondi

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Goel, Manmohan Dass, and Laxminarayan Krishnappa. "Deformation and Energy Absorption of Aluminum Foam Filled Square Tubes." Advanced Materials Research 585 (November 2012): 34–38. http://dx.doi.org/10.4028/www.scientific.net/amr.585.34.

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Modeling and numerical simulation of aluminum foam filled square tubes under axial impact loading is presented. The foam-filled thin-walled square tubes are modeled as shell wherein, foam core is modeled by incorporating visco-elastic plastic foam model in Altair® RADIOSS. Deformation and energy absorption studies with single, bi-tubular, and multi-tube structure with and without aluminum foam core are carried out for assessing its effectiveness in crashworthiness under the identical conditions. It is observed that the multi-tube structure with foam core modify the deformation modes considerab

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38

Yan, Li, Xue Feng An, Jian Li Cai, and Xiao Su Yi. "Damage Behavior of Foam Core Sandwich Composites Subjected to Quasi-Static Indentation Testing." Applied Mechanics and Materials 182-183 (June 2012): 57–64. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.57.

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Damage behavior of foam core sandwich composites subjected to quasi-static indentation testing was investigated detailedly. Force-displacement curves and the cross-sections of damaged sandwich panels were analyzed. Effects of core thickness, face-sheet thickness and toughness of face-sheet materials were discussed by comparison with different specimens subjected to quasi-static indentation testing. Results showed that damage behavior of sandwich composites had identical feature. Collapse of foam core initially appeared, and then foam core generated crack. Delamination and fiber breakage of upp

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Kavianiboroujeni, Azam, Alain Cloutier, and Denis Rodrigue. "Low Velocity Impact Behaviour of Asymmetric Three-layer Sandwich Composite Structures with and without Foam Core." Polymers and Polymer Composites 25, no. 5 (2017): 381–94. http://dx.doi.org/10.1177/096739111702500507.

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This paper presents an experimental investigation of the impact behaviour of three layer sandwich structures made of high density polyethylene (HDPE) and hemp, with and without a foam core. Low-velocity falling weight and Charpy impact tests were performed to investigate the influence of hemp content, skin thickness and core density. The strength, load, absorbed energy, and deflection histories were recorded and analysed and the damaged specimens were inspected to determine the failure patterns. Based on the Charpy impact results, the structures with foam core had higher energy absorption capa

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Rognmo, Arthur Uno, Sunniva Brudvik Fredriksen, Zachary Paul Alcorn, et al. "Pore-to-Core EOR Upscaling for CO2 Foam for CCUS." SPE Journal 24, no. 06 (2019): 2793–803. http://dx.doi.org/10.2118/190869-pa.

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Summary This paper presents an ongoing CO2–foam upscaling research project that aims to advance CO2–foam technology for accelerating and increasing oil recovery, while reducing operational costs and lessening the carbon footprint left during CO2 enhanced oil recovery (EOR). Laboratory CO2–foam behavior was upscaled to pilot scale in an onshore carbonate reservoir in Texas, USA. Important CO2–foam properties, such as local foam generation, bubble texture, apparent viscosity, and shear–thinning behavior with a nonionic surfactant, were evaluated using pore–to–core upscaling to develop accurate n

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Arunkumar, MP, Jeyaraj Pitchaimani, and KV Gangadharan. "Bending and free vibration analysis of foam-filled truss core sandwich panel." Journal of Sandwich Structures & Materials 20, no. 5 (2016): 617–38. http://dx.doi.org/10.1177/1099636216670612.

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This paper presents the studies carried out on bending and free vibration behavior of truss core sandwich panel filled with foam typically used in aerospace applications. Equivalent stiffness properties for foam-filled truss core sandwich panel are derived by idealizing 3D foam-filled sandwich panel to an equivalent 2D orthotropic thick plate continuum. The accuracy of the derived elastic property is ensured by the numerical comparison of free vibration response of 3D and its equivalent 2D finite element model. The derived stiffness constants were used in closed form solution to evaluate the m

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Setyawan, P. D., S. Sugiman, S. Sinarep, H. Hilwan, and H. Hilwan. "Karakteristik komposit sandwich dengan inti (core) open cell foam bambu berlubang." Dinamika Teknik Mesin 13, no. 2 (2023): 157. http://dx.doi.org/10.29303/dtm.v13i2.654.

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The sandwich composite employed in this study is made of bamboo open-cell foam with plywood skin. The fibre volume percentage in the bamboo foam core was 15%, and PVAc glue was used. The open-cell foam core has a square-shaped hollow in the centre with spacings of 30mm, 40mm, and 60mm. The goal of this study is to describe sandwich composites made using hollow bamboo open-cell foam cores. Density testing (ASTM C271), flatwise compression testing (ASTM C365-05), flexural testing (ASTM C393), and water absorption testing (ASTM C272) were among the tests performed. Sandwich composites with core-o

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Xiang, Chun Ping, Qing Hua Qin, Fang Fang Wang, Ming Shi Wang, Xue Hui Yu, and Tie Jun Wang. "Large Deflection Response of Rectangular Metal Sandwich Plates with Functionally Graded Foam Core Subjected to Blast Loading." Key Engineering Materials 725 (December 2016): 149–55. http://dx.doi.org/10.4028/www.scientific.net/kem.725.149.

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A theoretical research is carried out to study the large deflection response of a fully clamped rectangular metal sandwich plates with functionally graded foam core subjected to blast loading. Using a new yield criterion for sandwich cross-section with graded foam core, we obtained the analytical solutions for the dynamic response of rectangular sandwich plates. Finite element simulations with gradient layers foam core model are performed to study the dynamic response of the sandwich plates with graded foam core subjected to blast loading. The results of the analyses seem to predict well the d

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Wang, Zhi Hua, Xin Li, Zhi Qiang Li, and Long Mao Zhao. "Dynamic Response of Aluminum Foam Sandwich Panel to Transverse Impact." Key Engineering Materials 535-536 (January 2013): 485–88. http://dx.doi.org/10.4028/www.scientific.net/kem.535-536.485.

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The dynamic response of aluminum foam sandwich panels are studied experimentally by impacting the panels at mid-span with metal foam projectiles. Two types of core are considered: open-cell foam and closed-cell foam. By changing the launching speed of metal foam projectiles, different deformation/failure modes of sandwich panels are obtained. Strain history of face sheets in different positions is also recorded by strain gauges to observe its deformation mechanism. The experiment results indicated that when the strength of core is relatively small and the impulse exerted is large, erosion fail

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Hossain, Forhad, Md Arifuzzaman, Md Shariful Islam, and Md Mainul Islam. "Thermo-Mechanical Behavior of Green Sandwich Structures for Building and Construction Applications." Processes 11, no. 8 (2023): 2456. http://dx.doi.org/10.3390/pr11082456.

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In this work, three different types of sandwich structures were manufactured, each using a Formica sheet (a paper-based sheet) as the skin and perlite/sodium silicate foam as the core, with or without a paper honeycomb. The sandwich structures were fabricated by attaching the Formica sheets on both sides of a paper honeycomb core panel, a perlite/sodium silicate foam core panel, and a perlite/sodium silicate foam-filled honeycomb core panel. The flexural characteristics were studied by a three-point bending test and the thermal conductivity was measured using Lee’s thermal conductivity apparat

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Zhou, Ming, Juncheng Bu, Jie Wang, Xiao Guo, Jie Huang, and Min Huang. "Study on three phase foam for Enhanced Oil Recovery in extra-low permeability reservoirs." Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 73 (2018): 55. http://dx.doi.org/10.2516/ogst/2018059.

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Poly (MSt-MMA) nanosphere as foam stabilizing agent was synthesized by emulsion polymerization. The three phase foam was prepared with Disodium 4-Dodecyl-2,4′-Oxydiben Zenesulfonate (DOZS) as foaming agent, Hydrolyzed Polyacrylamide (HPAM) and synthesized poly (MSt-MMA) nanospheres as the mixed foam stabilizing agents. It had outstanding foaming performance and foam stability. The optimal three phase foam system consisting of 0.12 wt% HPAM, 0.04 wt% poly (MSt-MMA) nanospheres and 0.12 wt% DOZS by orthogonal experiment, had high apparent viscosity, which showed that three components had a very

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Buenrostro, Ezequiel, and Daniel Whisler. "Impact response of a low-cost randomly oriented fiber foam core sandwich panel." Journal of Composite Materials 52, no. 25 (2018): 3429–44. http://dx.doi.org/10.1177/0021998318764009.

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Three-dimensional fiber-reinforced foam cores may have improved mechanical properties under specific strain rates and fiber volumes. But its performance as a core in a composite sandwich structure has not been fully investigated. This study explored different manufacturing techniques for the three-dimensional fiber-reinforced foam core using existing literature as a guideline to provide a proof of concept for a low-cost and easily repeatable method comprised of readily available materials. The mechanical properties of the fiber-reinforced foam were determined using a three-point bend test and

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Djamaluddin, Fauzan. "Optimization of Free Vibration for Sandwich Foam Core." International Journal of Mechanics 17 (November 20, 2023): 93–98. http://dx.doi.org/10.46300/9104.2023.17.14.

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The structural dynamic features of a sandwich foam core structure with core and surface thicknesses are examined to increase the structure's resistance to vibration. The thickness of the core and surface of the sandwich foam core structure are defined as design variables in the optimization function of natural frequency parameters. The finite element analysis program FEA software was used for the analyses. The multi-objective optimization problem using RMS. The derived natural frequencies are compared with the outcomes of the experiments to validate the numerical model. The calculated natural

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Nazari, AR, MZ Kabir, H. Hosseini-Toudeshky, Y. Alizadeh Vaghasloo, and S. Najafian. "Investigation of progressive failure in the composite sandwich panels with elastomeric foam core under concentrated loading." Journal of Sandwich Structures & Materials 21, no. 8 (2017): 2585–615. http://dx.doi.org/10.1177/1099636217719424.

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Failure and damage of crushable materials employed as core for the sandwich structures reduces serviceability and energy absorption capacity of the components especially under bending load so that many beneficial properties seem to be achieved by application of noncrushable lightweight materials instead of crushable foams as core for the sandwich structures. In this paper, an elastomeric foam is employed as core for two aspect ratios of the composite sandwich panels and the enhancement of the load-carrying capacity in the elastomeric foam-cored sandwich panels is investigated in comparison to

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Almula, Thamir Aunal Deen Mohammed Sheet, S. Sharifi, G. Sharifishourabi, Soheil Gohari, Amran Bin Ayob, and Yahya Mohd Yazid. "Static Analysis of Stitched Sandwich Beams with Functionally Graded Foam Core." Applied Mechanics and Materials 393 (September 2013): 381–86. http://dx.doi.org/10.4028/www.scientific.net/amm.393.381.

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In this paper static analysis of a cantilever functionally graded sandwich beam under uniform distributed loads is carried out numerically. The beam is composed of two glass fiber reinforced plastic (GFRP) facesheets and a graded Corecell A-series foam core. The composite skins and foam core are stitched together using the same glass fiber. A finite element (FE) model is developed employing a FE commercial code to determine the stresses and deflections. To find the effect of quality of foam gradation through the thickness of the core on the deflections and stresses numerical experiments are pe

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