Structural performance of additive manufactured wood-sodium silicate composite beams for sustainable construction
The current research examines the structural bending performance of additive manufactured wood-sodium silicate composite beams of various span-to-height proportions. Beams consisting of both a single layer as well as two layers of extruded wood-sodium silicate composite were considered. Both groups...
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| Format: | Article |
| Language: | English |
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Sustainable Development Press Limited
2024-12-01
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| Series: | Sustainable Structures |
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| author | Hojat Hematabadi Adefemi A Alade Robert HR Carne Daniel Robertson Milinda Yapa Armando G. McDonald Ahmed A. Ibrahim |
| author_facet | Hojat Hematabadi Adefemi A Alade Robert HR Carne Daniel Robertson Milinda Yapa Armando G. McDonald Ahmed A. Ibrahim |
| author_sort | Hojat Hematabadi |
| collection | DOAJ |
| description | The current research examines the structural bending performance of additive manufactured wood-sodium silicate composite beams of various span-to-height proportions. Beams consisting of both a single layer as well as two layers of extruded wood-sodium silicate composite were considered. Both groups of beams exhibited a rise in maximum shear force (Vmax), maximum bending moment (Mmax), apparent modulus of elasticity (MOEapp), and modulus of rupture (MOR) when the span-to-height proportions rose. However, the amount of shear stress (τmax) decreased as the span-to-height proportion increased. Furthermore, the flexural and shear stress patterns for span-to-height proportions of 6 and 30 were calculated analytically using the transformed section methodology across the thickness of the beams at different positions of L/6, L/3, 5L/12, and L/2 of the beam span. The results demonstrated that the bending stress increased as the distances from the supports increased toward the middle of the beam. Compared to single-layer beams, two-layer beams displayed lower stress values overall. In particular, the bending stress was 4.85% lower in the two-layer beam with a span-to-height proportion of 6 than that of the single-layer beams. Furthermore, the single-layer beam's maximum shear stress was slightly greater than the two-layer beams. The greatest shear stress of the single-layer beams were computed 4.27% and 0.46% higher than those of the two-layer beams at span-to-height proportions of 6 and 30, respectively. |
| format | Article |
| id | doaj-art-c236586a2ac749929b40fc49362774ac |
| institution | Kabale University |
| issn | 2789-3111 2789-312X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Sustainable Development Press Limited |
| record_format | Article |
| series | Sustainable Structures |
| spelling | doaj-art-c236586a2ac749929b40fc49362774ac2025-02-01T08:58:47ZengSustainable Development Press LimitedSustainable Structures2789-31112789-312X2024-12-013410.54113/j.sust.2024.000054Structural performance of additive manufactured wood-sodium silicate composite beams for sustainable constructionHojat Hematabadi0Adefemi A Alade1Robert HR Carne2Daniel Robertson3Milinda Yapa4Armando G. McDonald5Ahmed A. Ibrahim6Department of Civil and Environmental Engineering, University of Idaho, 83844, Moscow, ID, USA.Department of Civil and Environmental Engineering, University of Idaho, 83844, Moscow, ID, USA.Department of Mechanical Engineering, University of Idaho, Moscow, ID, USA.Department of Mechanical Engineering, University of Idaho, Moscow, ID, USA.Department of Civil and Environmental Engineering, University of Idaho, 83844, Moscow, ID, USA.Department of Forest, Rangeland and Fire Sciences in the College of Natural Resources, University of Idaho, Moscow, ID, USA.Department of Civil and Environmental Engineering, University of Idaho, 83844, Moscow, ID, USA.The current research examines the structural bending performance of additive manufactured wood-sodium silicate composite beams of various span-to-height proportions. Beams consisting of both a single layer as well as two layers of extruded wood-sodium silicate composite were considered. Both groups of beams exhibited a rise in maximum shear force (Vmax), maximum bending moment (Mmax), apparent modulus of elasticity (MOEapp), and modulus of rupture (MOR) when the span-to-height proportions rose. However, the amount of shear stress (τmax) decreased as the span-to-height proportion increased. Furthermore, the flexural and shear stress patterns for span-to-height proportions of 6 and 30 were calculated analytically using the transformed section methodology across the thickness of the beams at different positions of L/6, L/3, 5L/12, and L/2 of the beam span. The results demonstrated that the bending stress increased as the distances from the supports increased toward the middle of the beam. Compared to single-layer beams, two-layer beams displayed lower stress values overall. In particular, the bending stress was 4.85% lower in the two-layer beam with a span-to-height proportion of 6 than that of the single-layer beams. Furthermore, the single-layer beam's maximum shear stress was slightly greater than the two-layer beams. The greatest shear stress of the single-layer beams were computed 4.27% and 0.46% higher than those of the two-layer beams at span-to-height proportions of 6 and 30, respectively.additive manufacturingwood-sodium silicatecomposite beamssustainable construction |
| spellingShingle | Hojat Hematabadi Adefemi A Alade Robert HR Carne Daniel Robertson Milinda Yapa Armando G. McDonald Ahmed A. Ibrahim Structural performance of additive manufactured wood-sodium silicate composite beams for sustainable construction Sustainable Structures additive manufacturing wood-sodium silicate composite beams sustainable construction |
| title | Structural performance of additive manufactured wood-sodium silicate composite beams for sustainable construction |
| title_full | Structural performance of additive manufactured wood-sodium silicate composite beams for sustainable construction |
| title_fullStr | Structural performance of additive manufactured wood-sodium silicate composite beams for sustainable construction |
| title_full_unstemmed | Structural performance of additive manufactured wood-sodium silicate composite beams for sustainable construction |
| title_short | Structural performance of additive manufactured wood-sodium silicate composite beams for sustainable construction |
| title_sort | structural performance of additive manufactured wood sodium silicate composite beams for sustainable construction |
| topic | additive manufacturing wood-sodium silicate composite beams sustainable construction |
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