Most recent issue published online in the International Journal of Sustainable Materials and Structural Systems.
International Journal of Sustainable Materials and Structural Systems
http://www.inderscience.com/browse/index.php?journalID=371&year=2022&vol=6&issue=1
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International Journal of Sustainable Materials and Structural Systems
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International Journal of Sustainable Materials and Structural Systems
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http://www.inderscience.com/browse/index.php?journalID=371&year=2022&vol=6&issue=1
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Steel I-beam simulation for different stiffener patterns
http://www.inderscience.com/link.php?id=131174
This paper presents the effectiveness of different stiffener patterns used in steel I-beams in deformation resistance. A total of seven patterns have been studied, the patterns are - vertical, both horizontal and vertical, N-type, M-type, X-type, double Y-type and, Y-type. The result was compared with respect to the conventional one (i.e., no stiffener). All the beams were modelled using SOLIDWORKS (2019-SP04) and analysed by ANSYS (19.2). The dimensions of the I-beam as well as the thickness of the plate were kept constant throughout the study. Among them X-type stiffener has shown least deformation. While the Y-type stiffener despite not showing the least deformation is rather more efficient as the amount of steel plates used less than the X-stiffener and is thus proposed as the most economical and efficient.
Steel I-beam simulation for different stiffener patterns
Mohaimin-ul-Islam; Rafiul Islam; Riyadul Islam; H.M.A. Mahzuz; Md. Assaduzzaman
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 1 - 15
This paper presents the effectiveness of different stiffener patterns used in steel I-beams in deformation resistance. A total of seven patterns have been studied, the patterns are - vertical, both horizontal and vertical, N-type, M-type, X-type, double Y-type and, Y-type. The result was compared with respect to the conventional one (i.e., no stiffener). All the beams were modelled using SOLIDWORKS (2019-SP04) and analysed by ANSYS (19.2). The dimensions of the I-beam as well as the thickness of the plate were kept constant throughout the study. Among them X-type stiffener has shown least deformation. While the Y-type stiffener despite not showing the least deformation is rather more efficient as the amount of steel plates used less than the X-stiffener and is thus proposed as the most economical and efficient.]]>
10.1504/IJSMSS.2022.131174
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 1 - 15
Mohaimin-ul-Islam
Rafiul Islam
Riyadul Islam
H.M.A. Mahzuz
Md. Assaduzzaman
Department of Civil Engineering, Sylhet Engineering College, Sylhet-3100, Bangladesh ' Department of Civil Engineering, Sylhet Engineering College, Sylhet-3100, Bangladesh ' Department of Civil Engineering, Sylhet Engineering College, Sylhet-3100, Bangladesh ' Department of Civil and Environmental Engineering, Shahjalal University of Science and Technology, Sylhet-3114, Bangladesh ' Department of Civil Engineering, Mymensingh Engineering College, Q8JV+HR8, Mymensingh, Bangladesh
ANSYS
deflection
efficient
load
SOLIDWORKS
stiffener
2023-06-01T23:20:50-05:00
Copyright © 2023 Inderscience Enterprises Ltd.
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15
2023-06-01T23:20:50-05:00
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Optimisation of permanent magnet array for magnetic levitation systems
http://www.inderscience.com/link.php?id=131186
This paper presents the results of an experiment designed to measure the maximum static force of attraction between an iron mass and configurations of 12.7 mm cube neodymium permanent magnets. A threeand five-magnet segment of the Halbach array was studied in which the inclination angles of the adjacent magnets were varied from 0° to 90° in increments of 15° for gap distances of 5.382 mm to 30.891 mm. Results show that between a 5.585 mm and 7.465 mm gap height, the force from a five-magnet configuration with inclination angles of 15° was measured to be, on average, 2.35% larger than a configuration with 0° angles. Between 7.465 mm and 30.891 mm, the force from a configuration with inclination angles of 0° was measured to be, on average, 10.0% larger than a configuration with 15° angles.
Optimisation of permanent magnet array for magnetic levitation systems
Matthew Frost; Ryan McMullen; Ashraf Elbarbary
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 16 - 31
This paper presents the results of an experiment designed to measure the maximum static force of attraction between an iron mass and configurations of 12.7 mm cube neodymium permanent magnets. A threeand five-magnet segment of the Halbach array was studied in which the inclination angles of the adjacent magnets were varied from 0° to 90° in increments of 15° for gap distances of 5.382 mm to 30.891 mm. Results show that between a 5.585 mm and 7.465 mm gap height, the force from a five-magnet configuration with inclination angles of 15° was measured to be, on average, 2.35% larger than a configuration with 0° angles. Between 7.465 mm and 30.891 mm, the force from a configuration with inclination angles of 0° was measured to be, on average, 10.0% larger than a configuration with 15° angles.]]>
10.1504/IJSMSS.2022.131186
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 16 - 31
Matthew Frost
Ryan McMullen
Ashraf Elbarbary
Department of Mechanical Engineering, California Polytechnic State University, San Luis Obispo, CA, USA ' Department of Mechanical Engineering, California Polytechnic State University, San Luis Obispo, CA, USA ' Department of Mechanical Engineering, California Polytechnic State University, San Luis Obispo, CA, USA; Mechanical Design Department, Helwan University, Egypt
magnetic levitation
Halbach array
maglev
Hyperloop
magnetic field strength
static magnetic force
2023-06-01T23:20:50-05:00
Copyright © 2023 Inderscience Enterprises Ltd.
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31
2023-06-01T23:20:50-05:00
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Development of an automated hammer testing system for concrete structures
http://www.inderscience.com/link.php?id=131229
To assess the concrete structures, regular measurements are taken and results recorded by manual hammering tests. However, manual testing is a tedious process and prone to subjective errors. This study therefore proposes a mobile, automated hammering inspection system for concrete structures. It can provide objective and realistic data quickly. The system consists of a moving hammer module and a damage detection module. Firstly, the hammering module uses a coil to ensure that each hammering produces the same force to ensure its stability and that the final result is realistic and reliable. The hammering module is then mounted on the robot arm and the hammering path is automatically planned with the assistance of the robot. In addition, a kinematic solution is applied to obtain more valid and objective acoustic data on the hammering. Finally, the system was validated by laboratory and field tests.
Development of an automated hammer testing system for concrete structures
Xi Huang; Huang Huang; Zhishen Wu
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 32 - 45
To assess the concrete structures, regular measurements are taken and results recorded by manual hammering tests. However, manual testing is a tedious process and prone to subjective errors. This study therefore proposes a mobile, automated hammering inspection system for concrete structures. It can provide objective and realistic data quickly. The system consists of a moving hammer module and a damage detection module. Firstly, the hammering module uses a coil to ensure that each hammering produces the same force to ensure its stability and that the final result is realistic and reliable. The hammering module is then mounted on the robot arm and the hammering path is automatically planned with the assistance of the robot. In addition, a kinematic solution is applied to obtain more valid and objective acoustic data on the hammering. Finally, the system was validated by laboratory and field tests.]]>
10.1504/IJSMSS.2022.131229
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 32 - 45
Xi Huang
Huang Huang
Zhishen Wu
Department of Urban and Civil Engineering, Ibaraki University, Nakanarusawa-Cho 4-12-1 Hitachi, 316-8511, Japan ' Department of Urban and Civil Engineering, Ibaraki University, Nakanarusawa-Cho 4-12-1 Hitachi, 316-8511, Japan ' Department of Urban and Civil Engineering, Ibaraki University, Nakanarusawa-Cho 4-12-1 Hitachi, 316-8511, Japan
hammering test
non-destructive testing
robotic arm
automated test
2023-06-01T23:20:50-05:00
Copyright © 2023 Inderscience Enterprises Ltd.
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45
2023-06-01T23:20:50-05:00
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Monitoring of thermal resistance of concrete slab models
http://www.inderscience.com/link.php?id=131191
It is important to obtain information regarding the ability of concrete structures to perform its intended function considering the inevitable aging and degradation resulting from operational environments. This study aims to serve as a benchmark for a series of research projects to thoroughly investigate the effect of temperature on the performance of concrete. The study compares the physical and mechanical properties between identical concrete samples subjected to various loads and placed in different environmental conditions at service. In this study, several concrete samples were prepared and tested within a laboratory-controlled environment and in real conditions where they were subjected to seasonal environmental conditions. The samples, placed outside of the laboratory in real conditions, were subjected to both Hurricane Laura and Delta that hit Southwest Louisiana in 2020. From the results of this experiment, it was possible to quantify the level of deteriorations of different tested samples.
Monitoring of thermal resistance of concrete slab models
Ahmed Abdel-Mohti; Shreewan Rupakheti; Juan Castano
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 46 - 60
It is important to obtain information regarding the ability of concrete structures to perform its intended function considering the inevitable aging and degradation resulting from operational environments. This study aims to serve as a benchmark for a series of research projects to thoroughly investigate the effect of temperature on the performance of concrete. The study compares the physical and mechanical properties between identical concrete samples subjected to various loads and placed in different environmental conditions at service. In this study, several concrete samples were prepared and tested within a laboratory-controlled environment and in real conditions where they were subjected to seasonal environmental conditions. The samples, placed outside of the laboratory in real conditions, were subjected to both Hurricane Laura and Delta that hit Southwest Louisiana in 2020. From the results of this experiment, it was possible to quantify the level of deteriorations of different tested samples.]]>
10.1504/IJSMSS.2022.131191
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 46 - 60
Ahmed Abdel-Mohti
Shreewan Rupakheti
Juan Castano
McNeese State University, Lake Charles, LA, USA ' McNeese State University, Lake Charles, LA, USA ' McNeese State University, Lake Charles, LA, USA
concrete
structural performance
temperature
flexure
durability
2023-06-01T23:20:50-05:00
Copyright © 2023 Inderscience Enterprises Ltd.
6
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46
60
2023-06-01T23:20:50-05:00
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Explosion load induced response of structural concrete columns under contact and close-range detonations: a state-of-the-art review
http://www.inderscience.com/link.php?id=131244
Reflected shock wave causes severer damage in the form of spallation, crushing, and cratering of structural concrete components under contact explosions than close-range explosions. In this study, the state of research on the performance of the columns under close-in and contact explosions is presented. The Beirut-explosion (August-2020) was an accidental event of highest immenseness the world ever witnessed. Two of the five Beirut hospitals were severely damaged by the shock waves and the masonry walls as far as 2 km from the explosion site were smashed to the ground. On the Beirut-explosion, a brief case study of post-explosion damage scenario is presented highlighting the vulnerability of structures in the vicinity of explosive stores and ammunition depots. Observed damages to columns subjected to explosive loadings are due to failure in the form of flexure-shear, flexural, rupture of steel bars, scabbing and spalling of concrete. Lastly, certain considerations for future studies are proposed.
Explosion load induced response of structural concrete columns under contact and close-range detonations: a state-of-the-art review
S.M. Anas; Mehtab Alam; Shahbaz Akram; Rafat Tahzeeb; Mohd Shariq; Mohammad Umair
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 61 - 108
Reflected shock wave causes severer damage in the form of spallation, crushing, and cratering of structural concrete components under contact explosions than close-range explosions. In this study, the state of research on the performance of the columns under close-in and contact explosions is presented. The Beirut-explosion (August-2020) was an accidental event of highest immenseness the world ever witnessed. Two of the five Beirut hospitals were severely damaged by the shock waves and the masonry walls as far as 2 km from the explosion site were smashed to the ground. On the Beirut-explosion, a brief case study of post-explosion damage scenario is presented highlighting the vulnerability of structures in the vicinity of explosive stores and ammunition depots. Observed damages to columns subjected to explosive loadings are due to failure in the form of flexure-shear, flexural, rupture of steel bars, scabbing and spalling of concrete. Lastly, certain considerations for future studies are proposed.]]>
10.1504/IJSMSS.2022.131244
International Journal of Sustainable Materials and Structural Systems, Vol. 6, No. 1 (2022) pp. 61 - 108
S.M. Anas
Mehtab Alam
Shahbaz Akram
Rafat Tahzeeb
Mohd Shariq
Mohammad Umair
Department of Civil Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia (A Central University), New Delhi, 110025, India ' Department of Civil Engineering, Netaji Subhas University of Technology (West Campus), New Delhi, 110073, India ' Department of Civil Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia (A Central University), New Delhi, 110025, India ' Department of Civil Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia (A Central University), New Delhi, 110025, India ' Department of Civil Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia (A Central University), New Delhi, 110025, India ' Department of Civil Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
blast loads
Beirut explosion
carbon fibres
damages
failure modes
RC columns
strengthening techniques
structures
testing methods
2023-06-01T23:20:50-05:00
Copyright © 2023 Inderscience Enterprises Ltd.
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108
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