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Journal articles on the topic 'Sandwich wall'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Yan, Dawei, Haiying Wan, Anying Chen, and Bing Wang. "Bending Performance of Concrete Sandwich Walls with Actual Boundary Conditions." Applied Sciences 13, no. 3 (2023): 1229. http://dx.doi.org/10.3390/app13031229.

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Concrete sandwich walls are commonly used as the exterior wall panels of a structure, in which the wall suffers out-of-plane bending under strong wind conditions. This paper aims to investigate the bending performance of concrete sandwich walls under actual boundary conditions through experimental and analytical methods. In total, four concrete sandwich walls were tested to detect the influence of openings and loading direction. Typical failure patterns were characterized and discussed. The load-displacement curves of four test specimens were analyzed. It was indicated that the bearing capacit

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2

Abdul Rahman, S. Syed, and K. S. Satyanarayanan. "Experimental and Numerical Simulation of Effects of High Temperature on RC Frame Infilled with Sandwich Panel." Civil Engineering Journal 10, no. 1 (2024): 280–98. http://dx.doi.org/10.28991/cej-2024-010-01-018.

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This study investigated the structural behavior of reinforced concrete (RC) frames infilled with masonry walls and polyurethane (PU) sandwich wall panels at elevated temperatures. This study aims to assess the influence of temperature on the stiffness and load-carrying capacity of infilled frames, optimize the thickness of the sandwich wall panel, and compare the performance of masonry and sandwich infill systems. Analytical investigations were conducted using finite element analysis software (ABAQUS) to simulate the behavior of the frames at elevated temperatures and consider various configur

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Hapsari, Kholis, Ardia Tiara Rahmi, and Delista Putri Deni. "Efektivitas Dinding Sandwich Panel dan Precast ACC Panel Terhadap Biaya dan Waktu." Jurnal Manajemen Teknologi & Teknik Sipil 6, no. 2 (2023): 123–37. http://dx.doi.org/10.30737/jurmateks.v6i2.5126.

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Project delays in construction development have a major impact, especially on costs. Projects that experience delays in implementation will require large costs. One of the delay factors is caused by material selection, especially for wall materials. Precast AAC Panel wall and sandwich panel walls are current wall material innovations, but both differ in material composition, implementation method, and price. This research aims to analyze the effectiveness of the two types of walls in terms of cost and time. The research will use objects from the 24-story Sudimaran Forestwalk apartment developm

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Kang, Ludi, Bilong Liu, Fengyan An, and Dapeng Wei. "Mechanical and vibro-acoustic performance of sandwich panel with perforated honeycomb cores." Journal of the Acoustical Society of America 152, no. 3 (2022): 1539–46. http://dx.doi.org/10.1121/10.0013997.

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The effect of perforating the honeycomb walls of a honeycomb sandwich panel on the dynamic bending stiffness and sound transmission loss of the panel is investigated. The dynamic bending stiffness and sound transmission loss of several sandwich panels with different cores are calculated using a semi-analytical method, and the static bending stiffness and flatwise stiffness of these structures are also analyzed with the finite element method. Furthermore, the influences of the honeycomb shape, the hole shape of the perforated honeycomb wall, the number of perforations, and the wall thickness on

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Chenglong, Sun, and Gao Liang. "Analysis of the Vibration Isolation Effect of the Railway Rigid Sandwich Wall." Open Civil Engineering Journal 11, no. 1 (2017): 121–30. http://dx.doi.org/10.2174/1874149501711010121.

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The vibration isolation effect of the rigid sandwich wall was measured and the characteristics of time and frequency domain at low frequency was analyzed on the basis of the environmental isolation engineering of the railway in the Beijing suburb in this paper. The results indicated that environmental vibration significantly decreased after building the rigid sandwich walls. The vibration isolation efficiency of the rigid sandwich wall is respectively 0.32 and 0.46 at a distance of 35 meters and 40 meters away from railway center. It is obvious that a distance of 5 meters behind the vibration

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6

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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7

Su, Yi Sheng, Yue Chun Luo, Guo Liang Jiang, Jin Yun Quan, and Yi Shen. "Seismic Analysis of Fly Ash Plate Sandwich Polyurethane Insulation Composite Wall." Applied Mechanics and Materials 275-277 (January 2013): 1003–7. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.1003.

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In order to study the seismic stress performance of the reinforced concrete frame assembly fly ash plate sandwich polyurethane composite wall insulation system (FW). In this paper, 2 bay single-layer single-span hollow fly ash plate sandwich polyurethane in filled frames were tested under low cyclic horizontal loadings with different ratio of high to width and different stiffness frame . Based on the experiment, the damage process, failure mode, load carrying capacity are studied. The interaction between the fly ash plate sandwich polyurethane infill walls and the overall frame of constraint s

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8

Sumala, M., B. Murali Krishna, and T. P. Tezeswi. "Structural Performance of EPS Core Based Cementitious Sandwich Panel under Various Loading Conditions." Journal of Physics: Conference Series 2779, no. 1 (2024): 012073. http://dx.doi.org/10.1088/1742-6596/2779/1/012073.

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Abstract Sandwich panels have gained a lot of popularity in recent years as engineers seek to replace the heavy, rigid constructions with the light weight structures that permit good energy absorption and deformation values. Expanded Polystyrene (EPS) core based cementitious sandwich composite panels are used as load bearing and non-load bearing panels. This EPS panel is a light weight, thermal efficient and reduces the cost of construction. This panel consists of upper and lower face skin and a core layer is sandwiched between the two face layers. In this paper the material for face skin used

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9

Prabhakaran, S., V. Krishnaraj, Hemashree Golla, and M. Senthilkumar. "Biodegradation behaviour of green composite sandwich made of flax and agglomerated cork." Polymers and Polymer Composites 30 (January 2022): 096739112211036. http://dx.doi.org/10.1177/09673911221103602.

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Material experts are striving to use natural resources as skin and core in composite sandwiches to achieve light weight, biodegradability, and cost benefits. This paper reports one such newly developed green composite sandwich and its biodegradable behavior. The skin and core of newly developed sandwich are flax fiber and agglomerated cork respectively. This composite sandwich is manufactured by vacuum bagging technique in order to get higher volume fraction of fiber. The biodegradability testing of the composite sandwich has been executed by soil burial test. The verification of the same has

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10

Vatulia, G. L., A. O. Lovska, S. S. Myamlin, and Ye S. Krasnokutskyi. "Substantiation of the Design Features of Sandwich Panels for Container Wall Lining." Science and Transport Progress, no. 1(101) (March 28, 2022): 55–63. http://dx.doi.org/10.15802/stp2023/280009.

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Purpose. The main purpose of this work is to substantiate the design features of sandwich panels for the manufacture of container walls of size 1SS. Methodology. To ensure the strength of the container walls, it is proposed to use sandwich panels as their components. This involves the manufacture of a sandwich panel from two metal sheets, between which a material with energy-absorbing properties is placed. This solution helps to improve the strength of the container by reducing its load. To determine the thickness of the panel sheet, the corresponding calculations were performed using the Bubn

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11

Ma, Shaochun, Lianghui Li, and Peng Bao. "Seismic Performance Test of Double-Row Reinforced Ceramsite Concrete Composite Wall Panels with Cores." Applied Sciences 11, no. 6 (2021): 2688. http://dx.doi.org/10.3390/app11062688.

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The research objective of this study was the seismic performance of double-row reinforced ceramsite concrete sandwich wall panels. The feasibility of upgrading a new wall panel from a non-load-bearing partition wall to a load-bearing seismic wall was examined by conducting cyclic load tests on five wall panel specimens. The test piece was a sandwich thermal insulation structure that could achieve a good protection distance between the thermal insulation material and the fire source so that the fire prevention problem could be solved. At the same time, the problem of easy fall-off of the insula

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12

Yin, Wan Yun, Jian Hua Cui, Guang Hui Xia, Ren Cai Jin, Shan Xia, and Shou Chen Liu. "The Development of New Sandwich Thermal Insulation Composite Wall Based on the Housing Industrialization." Applied Mechanics and Materials 291-294 (February 2013): 997–1000. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.997.

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This paper reviews the development status of the new sandwich thermal insulation composite wall, structural features and technical level. We make brief comparison to the application and development of insulation wall in wall materials composition, wall structure forms and wall construction style. Some problems that need to be solved in the engineering practice are discussed and investigated. Based on the housing industrialization, this paper expounds the new sandwich insulation composite wall and proposes some ideas.

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13

Tian, Zhao-yan, and Qun Xie. "Numerical analysis on seismic behavior of a novel sandwich wall system." E3S Web of Conferences 136 (2019): 04071. http://dx.doi.org/10.1051/e3sconf/201913604071.

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Concrete sandwich panel is a kind of building element with the characteristics of light weight, high strength, suitability for standardized production, meanwhile it has the multi-function of heat preservation and sound insulation which can be used not only as enclosure components, but also as structural components for multi-story residential buildings. A novel sandwich wall system has been presented in this work with an innovative design concept. Compared with traditional steel wire sandwich panel, this sandwich panel wall system has unique features such as prefabricated steel system, core col

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14

Wang, Dong Mei. "Evaluation Equation of the Flat Compression Properties of Corrugated Sandwich Structure." Advanced Materials Research 189-193 (February 2011): 202–7. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.202.

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The flat compression properties of corrugated sandwich structure are an important factor to evaluate their cushioning properties. At present, more research has been made on the mechanical properties in the cross direction (CD) and machine direction (MD), but less has been made in the flat compression direction. Selecting corrugated paperboards as samples, we analyzed the flat compression properties of the corrugated sandwich structure and explored the critical stress which is a key element for evaluating the cushioning properties based on theory and experiment. It is convenient to evaluate the

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15

Li, Zhijun, Xinlong Dong, Dou Chen, Yan Jiang, and Xuehua Li. "Blast-Resistant Performance of Steel Petrochemical Control Room with 3D-Kagome Sandwich Wall." Sustainability 16, no. 10 (2024): 3967. http://dx.doi.org/10.3390/su16103967.

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As the control brain of the petrochemical plant, blast-resistant performance requirements are important for the sustainability of the petrochemical control room and should be guaranteed when the vapor cloud explosion occurs in the petrochemical production process. The 3D-Kagome truss core sandwich structure is a kind of blast-resistant material with high energy absorption and recycling. Considering the influential factors of the radius of the truss core rod and thickness of the upper and lower panels, in this paper, the blast-resistant performance of a real steel petrochemical control room wit

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16

Vatulia, G. L., A. O. Lovska, Ye S. Krasnokutskyi, and P. V. Rukavishnikov. "Determination of the Strength of a Container with Sandwich Panel Walls under Operational Loading Conditions." Science and Transport Progress, no. 1(105) (March 20, 2024): 84–91. http://dx.doi.org/10.15802/stp2024/301522.

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Purpose. The main purpose of this work is to present the results of determining the strength of a container with sandwich panel walls under the main operating modes of loading. Methodology. To ensure the strength of the bearing structure of the container, it is proposed to make its end and side walls from sandwich panels. This involves the creation of sandwich panels from two metal sheets, between which there is a filler in the form of an energy-absorbing material. The thickness of the sandwich panel sheets is determined by the Bubnov-Galerkin method. The sheet is considered as a thin-walled p

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17

Serjouei, A., A. Yousefi, A. Jenaki, M. Bodaghi, and M. Mehrpouya. "4D printed shape memory sandwich structures: experimental analysis and numerical modeling." Smart Materials and Structures 31, no. 5 (2022): 055014. http://dx.doi.org/10.1088/1361-665x/ac60b5.

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Abstract Additive manufacturing has provided a unique opportunity to fabricate highly complex structures as well as sandwich structures with various out-of-plane cores. The application of intelligent materials, such as shape memory polymers, gives an additional dimension to the three-dimensional (3D) printing process, known as four-dimensional (4D) printing, so that the deformed structures can return to their initial shape by the influence of an external stimulus like temperature. In this study, 4D printing of smart sandwich structures with the potential of energy absorption is investigated. T

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18

Lv, Chun. "Status and Development Trend of Energy-Saving Wall Materials in Cold Areas." Advanced Materials Research 150-151 (October 2010): 630–33. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.630.

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The primary factor in reducing building energy consumption is the wall energy, but thickening the walls simply and using traditional materials to reduce energy consumption has become unable to satisfy the development trend at the present stage. Energy-saving wall materials include organic wall insulation, inorganic wall insulation and composite wall insulation. According to the construction technology, insulation wall can be divided into internal insulation wall, sandwich insulation wall and external insulation wall etc.. Polyurethane foam and other new energy-saving materials are widely used,

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19

Xia, Shan, Guang Hui Xia, Jian Hua Cui, and Wan Yun Yin. "Research on the Thermal Performance of New Sandwich Insulation Composite Wall Panel." Advanced Materials Research 567 (September 2012): 220–23. http://dx.doi.org/10.4028/www.scientific.net/amr.567.220.

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Based on the energy saving design standards in hot summer and cold winter zone like Anhui province, a new type of sandwich insulation composite wall panel is researched, Influence on thermal performances of new sandwich insulation composite wall panel，due to in different thermal insulation material, different content of the oblique connection rebar, different thermal insulation layer thickness and different internal and external wall thickness, are analyzed. The results show that, in not take extra insulation measures, this kind of sandwich insulation composite wall panel thermal performance c

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20

Poluraju, P., and G. Appa Rao. "Performance of squat 3D sandwich walls with longitudinal reinforcement and boundary elements under lateral cyclic loading." Journal of Sandwich Structures & Materials 20, no. 8 (2017): 946–73. http://dx.doi.org/10.1177/1099636216682546.

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Three-dimensional (3D) sandwich precast concrete walls are often used in building construction due to their superior performance, thermal efficiency, and speed of fabrication. When applied to low-rise buildings, this technology facilitates a cellular structure composed of squat sandwich walls sustaining gravity loads and performing as shear wall against lateral loads. Not much research information is available on squat 3D sandwich walls under in-plane lateral loading. This paper discusses experimental investigations on eight squat 3D sandwich walls were tested, in which four were without and f

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21

Sahmenko, Genadijs, Maris Sinka, Eva Namsone, Aleksandrs Korjakins, and Diana Bajare. "Sustainable Wall Solutions Using Foam Concrete and Hemp Composites." Environmental and Climate Technologies 25, no. 1 (2021): 917–30. http://dx.doi.org/10.2478/rtuect-2021-0069.

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Abstract This work is devoted to developing an energy-efficient solution for the external wall and evaluating its environmental impact. Several types of innovative single-layer and sandwich-type wall solutions were analysed and compared. Different constructive and thermal insulation materials were used, including traditional wall materials such as AAC (autoclaved aerated concrete) and normal concrete. Advanced materials, such as high-performance foamed concrete (HPFC) and natural biofibre composites, have been evaluated as an alternative solution. Ultra-light foam concrete was applied as an al

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22

Jiang, Wei, and Dan Liu. "Phase Change Material Used for Masonry Joints to Reduce the Thermal Bridge Effect." Materials 12, no. 12 (2019): 1895. http://dx.doi.org/10.3390/ma12121895.

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In this paper, a numerical calculation and application analysis of composite phase change material masonry mortar applied to wall parts are performed during the research process. Instead of the conventional “sandwich” phase change material wall, our research group mainly uses phase change materials in the wall parts to build masonry joints to reduce the thermal bridge effect. The influence of masonry joints on the heat transfer of the wall is demonstrated. A quantitative description of the transient heat transfer coefficient is obtained to measure the heat preservation performance of the phase

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23

Lu, Tao, Lauri Vähä-Savo, Xiaoshu Lü, and Katsuyuki Haneda. "Thermal Impact of 5G Antenna Systems in Sandwich Walls." Energies 16, no. 6 (2023): 2657. http://dx.doi.org/10.3390/en16062657.

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The 5th generation (5G) cellular networks offer high speeds, low latency, and greater capacity, but they face greater penetration loss through buildings than 4G due to their higher frequency bands. To reduce this loss in energy-efficient buildings, a passive antenna system was developed and integrated into sandwich walls. However, the thermal effects of this system, which includes highly thermally conductive metals, require further study. In this research, three-dimensional heat transfer simulations were performed using COMSOL Multiphysics to determine the thermal transmittances (U-values) of

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24

Pereira, Diogo, António Gago, Jorge Proença, and Tiago Morgado. "Fire performance of sandwich wall assemblies." Composites Part B: Engineering 93 (May 2016): 123–31. http://dx.doi.org/10.1016/j.compositesb.2016.03.001.

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25

Wang, Tao, Wen Li Yu, San Qiang Dong, and Yun Liang Gao. "Influence of the Cell Wall Thickness of Core on the Dynamic Response of Square Honeycomb Sandwich Plate Subjected to Blast Loading." Advanced Materials Research 160-162 (November 2010): 1732–37. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.1732.

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In foregoing study, a new phenomenon of the local dent of upper face sheet occurs in the simulation of dynamic response of sandwich plate subjected to blast loading. The reason and the effect of local dent on energy absorption are not ascertained. In this paper, two kind of square honeycomb plate with the cell wall thickness of 1mm and 0.5mm and with the same mass are modeled. And the dynamic response of both plates subjected to blast loading is simulated using LS-DYNA. For the thicker cell wall (1mm), the local dent is obvious while for the thinner cell wall (0.5mm), the local dent is not obv

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26

Yang, Ran, Dayi Qu, and Jigang Zhang. "Experimental Study on the Impact Resistance Performance of Civil Air Defense RC Walls Protected by Honeycomb Sandwich Panels." Buildings 14, no. 8 (2024): 2293. http://dx.doi.org/10.3390/buildings14082293.

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Reinforced concrete (RC) walls are extensively used in civil air defense engineering and are susceptible to low-speed impacts with high energy and massive weight during service. Therefore, it is crucial to consider the impact resistance of these walls and explore effective protection methods. The honeycomb structure, known for its energy-absorbing properties, has been widely utilized in aerospace, automotive, and maritime industries. However, there is a need for more research on applying honeycomb structures in energy-absorbing protection devices in civil engineering. This study proposes the u

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27

Sajadian, Behnam, and Hamidreza Ashrafi. "Fire performance of concrete sandwich panel under axial load." Pollack Periodica 15, no. 1 (2020): 45–52. http://dx.doi.org/10.1556/606.2020.15.1.5.

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Abstract In the present study, the performance of concrete sandwich panel against fire and axial load has been considered. A finite element model of a sandwich wall is presented and evaluated the performance under different temperature (200, 400, 600 °C. The ratio of width, thickness and length of wall are constant and the axial load enters on the top of wall. The maximum displacement and stress in different models shows the capacity of wall is increased at high temperature. The displacement has dramatically increased at temperature loading of 800 °C and it has gained which shows poor efficien

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28

Taheri, Fatemeh, and Mohammad R. Hematiyan. "Torsional analysis of hollow members with sandwich wall." Journal of Sandwich Structures & Materials 19, no. 3 (2017): 317–47. http://dx.doi.org/10.1177/1099636216688721.

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This paper proposes an analytical formulation for torsional analysis of thin-walled and moderately thick-walled hollow members with sandwich wall. The sandwich rod can have a complicated cross-section including straight and curved edges. The material and thickness of the two faces of the sandwich are assumed the same. Prandtl’s stress function is used to formulate the problem for faces and core, while the continuity and compatibility conditions at the face–core interfaces are also used to complete the formulation. By the presented method, it is possible to find the torsional stiffness and the

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Mohammadabadi, Mostafa, Vikram Yadama, and James Daniel Dolan. "Evaluation of Wood Composite Sandwich Panels as a Promising Renewable Building Material." Materials 14, no. 8 (2021): 2083. http://dx.doi.org/10.3390/ma14082083.

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During this study, full-size wood composite sandwich panels, 1.2 m by 2.4 m (4 ft by 8 ft), with a biaxial corrugated core were evaluated as a building construction material. Considering the applications of this new building material, including roof, floor, and wall paneling, sandwich panels with one and two corrugated core(s) were fabricated and experimentally evaluated. Since primary loads applied on these sandwich panels during their service life are live load, snow load, wind, and gravity loads, their bending and compression behavior were investigated. To improve the thermal characteristic

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Zeng, Cong, Ziwen Wang, Junliang Chen, and Dehong Wang. "Fire Resistance of an Assembled Integrated Enclosure Panel System." Buildings 12, no. 10 (2022): 1582. http://dx.doi.org/10.3390/buildings12101582.

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Due to increasing economic development in recent years, large-scale prefabricated structures have been used for substations. However, the assembly of steel structures suffers from technical problems, such as the mismatch between the fire protection level of the main structure and the enclosure system. This paper proposes an assembled integrated enclosure panel system for covering and fireproofing steel structures, such as beams and columns, consisting of sandwich wall panels and autoclaved lightweight concrete (ALC) wall panels covering the main steel structure. Fire resistance tests were carr

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Wibowo, Ari, Indradi Wijatmiko, and Christin R. Nainggolan. "Cyclic Behaviour of Expanded Polystyrene (EPS) Sandwich Reinforced Concrete Walls." Advances in Materials Science and Engineering 2018 (December 26, 2018): 1–9. http://dx.doi.org/10.1155/2018/7214236.

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Precast concrete walls become increasingly utilized due to the rapid needs of inexpensive fabricated house especially as traditional construction cost continues to climb, and also, particularly at damaged area due to natural disasters when the requirement of a lot of fast-constructed and cost-efficient houses are paramount. However, the performance of precast walls under lateral load such as earthquake or strong wind is still not comprehensively understood due to various types of reinforcements and connections. Additionally, the massive and solid wall elements also enlarge the building total w

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Wang, De Ling, and Zhong Li. "Cooperative Performance of Sandwich Insulation Walls With Expanded Polystyrene Under Static Loads." Advanced Materials Research 602-604 (December 2012): 948–51. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.948.

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Sandwich insulation walls can bear loadings and insulate thermal which are fit for cold and freezing areas. In this paper, small-sized concrete hollow blocks are selected as interior and exterior wall; expanded polystyrene (EPS) plates are selected as thermal insulation layer which are put between inner and outer layers. Effects of several factors on cooperative performance of interior and exterior wall under static loads were analyzed by numerical simulation. These factors include the type of connection steel, the vertical load and the property of interface between EPS and concrete blocks. Th

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Shi, Yunxing, Yangang Zhang, Kun Ni, Wei Liu, and Ye Luo. "Research and practices of large composite external wall panels for energy saving prefabricated buildings." MATEC Web of Conferences 289 (2019): 10012. http://dx.doi.org/10.1051/matecconf/201928910012.

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The production process and application of large composite external wall panels (composite panels for short) are introduced in this paper. Composite panels with both load bearing and thermal insulation were formed by pouring normal concrete (NC) and ceramsite foamed concrete (CFC) continuously according to particular technological requirements, which made two layers into a seamless whole. The layers of NC and CFC are for load bearing and thermal insulation respectively. The composite panels were manufactured in the scale of industrial production, and applied to several energy saving prefabricat

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Dong, Hao, Lin Du, Kai Zhang, Di Cui, and Zichen Deng. "Study on Active Heat Dissipation Performance of Cellular Sandwich Materials with Variable Thickness of Cell Wall." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 37, no. 3 (2019): 552–57. http://dx.doi.org/10.1051/jnwpu/20193730552.

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The influence of the thickness variation of the cell wall on the active heat dissipation of the cellular sandwich was studied by deducing the thermal performance index of the cellular sandwich with variable thickness. The relationship between the relative density and the thermal performance index of the cellular sandwich with different cell structures was analyzed. Then, the maximum thermal performance index and the optimum relative density of the cellular sandwich with different cell structures were obtained. The relationship between the maximum thermal performance index and the optimal relat

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35

Salsabila, Arna, Desy Setyowulan, and Eva Arifi. "Analysis Value Engineering at Work Apartment Building Wall." ASTONJADRO 13, no. 1 (2024): 245–50. http://dx.doi.org/10.32832/astonjadro.v13i1.14713.

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It was Optimizing resources to analyze cost efficiency in implementing construction projects. One method that can be used for resource optimization is value engineering (VE). Value engineering (VE) as a management technique to determine the efficiency between the cost and performance of a product or project and stay on appearance, quality and maintenance. Then value engineering is applied to the construction of apartment buildings to get cost efficiencies from the initial budget planning. This study aims to determine the effectiveness of value engineering in the construction of apartment build

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36

Kumar, SS Satheesh, M. Sudhakara Rao, I. Balasundar, Amit Kumar Singh, T. Raghu, and G. Madhusudhan Reddy. "Compressive behaviour of a nickel superalloy Superni 263 honeycomb sandwich panel." Journal of Sandwich Structures & Materials 22, no. 5 (2018): 1426–49. http://dx.doi.org/10.1177/1099636218786438.

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Metallic thermal protection systems comprising of sandwich panels consisting of hexagonal honeycomb sandwich structures are envisaged to be used in advanced transportation systems like hypersonic vehicles and reusable launch vehicles. The assessment of compressive mechanical behaviour is necessary to understand the response of sandwich structures to aerothermal loads. The fabrication methodology for realizing Ni based superalloy Superni 263 hexagonal honeycomb sandwich panels is established. This work is aimed at understanding the effect of sandwich panel geometry parameters like hexagonal cel

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Pourriahi, Vahid, Mohammad Heidari-Rarani, and Amir Torabpour Isfahani. "Influence of geometric parameters on free vibration behavior of an aluminum honeycomb core sandwich beam using experimentally validated finite element models." Journal of Sandwich Structures & Materials 24, no. 2 (2021): 1449–69. http://dx.doi.org/10.1177/10996362211053633.

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The hexagonal honeycomb core sandwich panels used in the satellite structure are subjected to severe vibration during launch. Therefore, the amounts of natural frequencies of these panels are of great importance for design engineers. Three-dimensional finite element modeling of the core considering all geometric parameters (i.e., a high-fidelity model) to achieve accurate results is not cost-effective. The honeycomb core is traditionally equivalent to a homogenized continuum core (i.e., a low-fidelity model) using simple analytical relations with ignoring the adhesive layer at the double cell-

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Lin, Hong, Chang Han, Lei Yang, et al. "Numerical Investigation on Performance Optimization of Offshore Sandwich Blast Walls with Different Honeycomb Cores Subjected to Blast Loading." Journal of Marine Science and Engineering 10, no. 11 (2022): 1743. http://dx.doi.org/10.3390/jmse10111743.

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As an important protective facility on offshore platform, the blast wall is of great significance in resisting oil and gas explosions. Honeycomb structures are widely used due to their unique deformation and mechanical properties under dynamic impact loads. The aim of this research is to develop an optimized design for an offshore sandwich blast wall with different honeycomb cores. The uniqueness of this paper is providing the quantitative optimization scheme for topological configurations and unit cell geometric parameters of honeycomb structures according to mass consistency and the proposed

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Polat, Erkan, and Michel Bruneau. "Cyclic Inelastic In-Plane Flexural Behavior of Concrete-Filled Sandwich Steel Panel Walls with Different Cross-Section Properties." Engineering Journal 55, no. 1 (2018): 45–76. http://dx.doi.org/10.62913/engj.v55i1.1124.

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Flexure-dominated, concrete-filled sandwich steel plate walls (CFSSP-Walls) have been studied experimentally by various researchers using a small number of cross-sections and wall aspect ratios. Using these past results to calibrate finite element models, the expected behavior of CFSSP-Walls having different geometries and cross-section properties is investigated here using finite element approaches. Results obtained show that the plastic moment can be used to conservatively predict maximum flexural strength in all cases considered and to provide valuable insights into stress and strain demand

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Li, Fangyi, Yuanwen Chen, and Dachang Zhu. "Revealing the Sound Transmission Loss Capacities of Sandwich Metamaterials with Re-Entrant Negative Poisson’s Ratio Configuration." Materials 16, no. 17 (2023): 5928. http://dx.doi.org/10.3390/ma16175928.

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Due to the influence of mass law, traditional lightweight sandwich structures have struggled to surpass solid structures in sound insulation performance. To this end, we propose an acoustic metamaterial structure with a sandwich configuration based on the re-entrant negative Poisson’s ratio (NPR) structure and systematically investigate its sound transmission loss (STL) performance under incident plane wave conditions. We used the acoustic impedance tube method to experimentally study the sound insulation performance of the re-entrant NPR sandwich structure under free boundary conditions, and

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Li, Xuelin, Zhuangzhuang Li, zhuoyu Guo, et al. "A parametric study on sandwich structures with star-shaped honeycomb core under blast loads." Journal of Physics: Conference Series 2891, no. 4 (2024): 042016. https://doi.org/10.1088/1742-6596/2891/4/042016.

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Abstract A finite element analysis of the blast resistance of the star-shaped honeycomb (SSH) core sandwich structure was carried out by using the CONWEP calculation model, with maximum deformation, energy absorption, and area specific energy absorption as the indicators of the explosion resistance. Based on the finite element method verified by experimental data, the influence of the structural parameters of each part of the SSH core sandwich panel on its anti-explosion performance was quantitatively investigated. The results show that the increase of the connecting ligament L and cell wall a

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Kühn, Annalena, Christoph Haugwitz, Jan Hinrichs, Mario Kupnik, and Jörg Lange. "Investigating the impact of thermal stresses on blistering effects in sandwich panels." ce/papers 6, no. 3-4 (2023): 22–27. http://dx.doi.org/10.1002/cepa.2311.

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AbstractLightweight steel constructions made of sandwich panels are an economical solution for wall and roof claddings, especially in industrial construction. The panels consist of two thin sheets of steel and a core with thermal insulating properties. In the mounted state and at high temperatures on the outer face of the panel, damage to the components may occur due to blister formation. In a current research project, the influence of defects in sandwich panels with a PIR‐foam core is examined. This article presents the results of experimental tests regarding the influence of various paramete

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Roslan, Mohd Nazrul, Mohd Yazid Yahya, Zaini Ahmad, Azrin Hani Abdul Rashid, and Wen Xue Wang. "Energy Absorption Capacity of Basalt Sandwich Composite Cylinder Subjected to Axial Compression Loadings." Materials Science Forum 917 (March 2018): 7–11. http://dx.doi.org/10.4028/www.scientific.net/msf.917.7.

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In this report presented the investigation of axial progressive compression on sandwich composite cylinder made from basalt fibre reinforced composite tube as skins and polyurethane (EPU) foam as core of the structure. The effect of braid orientation angle of the sandwich skins and foam core thickness were evaluated on the parameter performance namely peak force, average force, total energy absorption, crush force efficiency, and specific energy absorption. The primary failure mode observed was progressive failure fibre cracking and tube’s wall folding and crumping. Experiment result showed th

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Iwan Christianto. "Analisis Perbandingan Waktu dan Biaya Kelayakan Penggunaan Material Bata Ringan dan Sandwich PU Panel." Jurnal Penelitian Rumpun Ilmu Teknik 3, no. 4 (2024): 27–36. https://doi.org/10.55606/juprit.v3i4.4306.

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Construction projects are unique activities, many factors affect the uniqueness of construction projects, from the type of project, workers, the shape of the building, the budgeted costs to the environment where the construction project is built. The materials applied to construction projects are part of the uniqueness of construction projects that coincide with the environment and the type of project or in other words, the materials used in construction projects are very dependent on the cost and type of project, especially in wall installation, consisting of various materials, one of which i

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Salih, Khalid Ahmed, Aktifaa Salih Khudhur, and Aziz Ibrahim Abdulla. "Practical Study to Find the Best Sound Insulation for Walls From Different Building Materials." IOP Conference Series: Earth and Environmental Science 1060, no. 1 (2022): 012031. http://dx.doi.org/10.1088/1755-1315/1060/1/012031.

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Abstract The sound insulation of walls made of different building materials was tested in various places from Tikrit University in Iraq, with a number of up to 14 walls, distributed in the Department of Environmental Engineering, the Department of Civil Engineering and Chemical Engineering, the Deanship of the College of Arts, the College of Education, the College of Arts, the Department of Psychology, and the Deanship of the College of Computer. It was found through the results that the highest value of sound insulation was obtained for the wall of sequence 13, which amounted to 44.86 dB, but

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Oh, Tae Sik, Seok Joon Jang, Kang Min Lee, and Hyun Do Yun. "Insulation Type Effect on the Direct Shear Behavior of Concrete Sandwich Panel (CSP) with Non-Shear Connectors." Advanced Materials Research 663 (February 2013): 154–58. http://dx.doi.org/10.4028/www.scientific.net/amr.663.154.

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Precast concrete sandwich panels (PCSP) are often used as exterior cladding of residential buildings due to thermal efficiency. PCSP systems consist of two precast reinforced concrete walls separated by a layer of insulation and connected with connectors which penetrate the insulation layer and are anchored at two precast walls. This paper provides the pull-out test results of concrete sandwich panel (CSP) with non-shear connectors. The variables in this study were the casting direction of reinforced concrete walls and types of insulation. Test results indicated that the types of insulations a

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Abdolpour, Hassan, Gonçalo Escusa, José M. Sena-Cruz, Isabel B. Valente, and Joaquim A. O. Barros. "Axial Performance of Jointed Sandwich Wall Panels." Journal of Composites for Construction 21, no. 4 (2017): 04017009. http://dx.doi.org/10.1061/(asce)cc.1943-5614.0000785.

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Heo, Chan Yeong, Byungkwon Kang, Jae Hoon Jeong, Kwhanmien Kim, and Yujin Myung. "Acellular dermal matrix and bone cement sandwich technique for chest wall reconstruction." Archives of Plastic Surgery 49, no. 1 (2022): 25–28. http://dx.doi.org/10.5999/aps.2021.01067.

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The authors performed rigid reconstruction using the sandwich technique for full-thickness chest wall defects by using two layers of acellular dermal matrix and bone cement. We assessed six patients who underwent chest wall reconstruction. Reconstruction was performed by sandwiching bone cement between two layers of acellular dermal matrix. In all patients, there was no defect of the overlying soft tissue, and primary closure was performed for external wounds. The average follow-up period was 4 years (range, 2–8 years). No major complications were noted. The sandwich technique can serve as an

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Shafiai, Nor Hidayah, Rohana Hassan, Mohd Hanizan Bahari, Anizahyati Alisibramulisi, Ali Awaludin, and Ahmad Mazlan Othman. "Structural Performance of Bamboo Sandwich Panel (BSP) With Openings as Load Bearing Wall." Jurnal Kejuruteraan 36, no. 5 (2024): 2191–201. http://dx.doi.org/10.17576/jkukm-2024-36(5)-36.

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Studies on utilizing bamboo as structural and strengthening components still need to be completed. This paper presents a case study on effective and practical approaches for bamboo sandwich panels (BSP) designed as load-bearing walls with and without openings that can withstand heavy weights. Three specimens for each type of wall, all with a height of 1200mm and a width of 600mm, were tested. The BSP walls without openings were tested and considered as control specimens. The BSP walls were constructed with a square opening of 150 x 150 mm at the centre of the panel. The compression and moistur

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Jiang, Huanzhi, Libo Xie, Fengyuan Chang, Yu Cao, and Zhengxing Guo. "Study on the Composite Performance of Sandwich Wall Panels with SGCCs." Buildings 15, no. 1 (2024): 65. https://doi.org/10.3390/buildings15010065.

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This paper aims to explore the impact of different arrangements of new steel-glass FRP composite connectors (SGCCs) on the bending and composite performance of sandwich wall panels. Through monotonic loading bending tests on six full-size specimens, aspects such as their failure modes, load-deflection curves, load-strain relationships, slip between the thermal insulation layer and concrete, and composite action were analyzed. The results show that all sandwich wall panels experienced bending and ductile failure, and exhibit partial composite performance, with P4 having the best composite perfo

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