INFLUENCE OF THE SPECIMEN DEPTH TO LENGTH RATIO AND LAMINATION CONSTRUCTION ON YOUNG’S MODULUS AND IN-PLANE SHEAR MODULUS OF PLYWOOD MEASURED BY FLEXURAL VIBRATION
In this study, the Young’s modulus and the in-plane shear modulus of 3-, 5-, and, 7-ply Lauan wood (Shorea sp.) were determined by conducting a flexural vibration test with various specimen depth to length ratios and performing a subsequent finite element analysis (FEA). The length and depth directi...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2012-01-01
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| Series: | BioResources |
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| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_1_1337_Yoshihara_Speciment_Dept_Length_Ratio_Laminate_Modulus_Vibration/1414 |
| _version_ | 1811239740905619456 |
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| author | Hiroshi Yoshihara |
| author_facet | Hiroshi Yoshihara |
| author_sort | Hiroshi Yoshihara |
| collection | DOAJ |
| description | In this study, the Young’s modulus and the in-plane shear modulus of 3-, 5-, and, 7-ply Lauan wood (Shorea sp.) were determined by conducting a flexural vibration test with various specimen depth to length ratios and performing a subsequent finite element analysis (FEA). The length and depth directions of the specimen used for the vibration test coincided with the length/width and width/length directions of the plywood panel. The results obtained from the experiment and FEA revealed that the influence of specimen configuration and lamination construction did not significantly affect the measurement of the Young’s modulus. However, the results suggested that the in-plane shear modulus decreased as the depth to length ratio of the specimen decreased. The FEA result suggested that this decreasing tendency is more pronounced as the ply number decreases and the thickness of the plywood increases. A statistical analysis on the experimental results suggested that the length of the specimen must be less than 10 times the depth to reduce the influence of specimen configuration on the measured value of the in-plane shear modulus. |
| first_indexed | 2024-04-12T13:06:28Z |
| format | Article |
| id | doaj.art-ed9dbd26470647c7ae4598d6e379b730 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-04-12T13:06:28Z |
| publishDate | 2012-01-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-ed9dbd26470647c7ae4598d6e379b7302022-12-22T03:32:01ZengNorth Carolina State UniversityBioResources1930-21262012-01-017113371351INFLUENCE OF THE SPECIMEN DEPTH TO LENGTH RATIO AND LAMINATION CONSTRUCTION ON YOUNG’S MODULUS AND IN-PLANE SHEAR MODULUS OF PLYWOOD MEASURED BY FLEXURAL VIBRATIONHiroshi YoshiharaIn this study, the Young’s modulus and the in-plane shear modulus of 3-, 5-, and, 7-ply Lauan wood (Shorea sp.) were determined by conducting a flexural vibration test with various specimen depth to length ratios and performing a subsequent finite element analysis (FEA). The length and depth directions of the specimen used for the vibration test coincided with the length/width and width/length directions of the plywood panel. The results obtained from the experiment and FEA revealed that the influence of specimen configuration and lamination construction did not significantly affect the measurement of the Young’s modulus. However, the results suggested that the in-plane shear modulus decreased as the depth to length ratio of the specimen decreased. The FEA result suggested that this decreasing tendency is more pronounced as the ply number decreases and the thickness of the plywood increases. A statistical analysis on the experimental results suggested that the length of the specimen must be less than 10 times the depth to reduce the influence of specimen configuration on the measured value of the in-plane shear modulus.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_1_1337_Yoshihara_Speciment_Dept_Length_Ratio_Laminate_Modulus_Vibration/1414Finite element analysisFlexural vibration methodIn-plane shear modulusPlywoodYoung’s modulus |
| spellingShingle | Hiroshi Yoshihara INFLUENCE OF THE SPECIMEN DEPTH TO LENGTH RATIO AND LAMINATION CONSTRUCTION ON YOUNG’S MODULUS AND IN-PLANE SHEAR MODULUS OF PLYWOOD MEASURED BY FLEXURAL VIBRATION BioResources Finite element analysis Flexural vibration method In-plane shear modulus Plywood Young’s modulus |
| title | INFLUENCE OF THE SPECIMEN DEPTH TO LENGTH RATIO AND LAMINATION CONSTRUCTION ON YOUNG’S MODULUS AND IN-PLANE SHEAR MODULUS OF PLYWOOD MEASURED BY FLEXURAL VIBRATION |
| title_full | INFLUENCE OF THE SPECIMEN DEPTH TO LENGTH RATIO AND LAMINATION CONSTRUCTION ON YOUNG’S MODULUS AND IN-PLANE SHEAR MODULUS OF PLYWOOD MEASURED BY FLEXURAL VIBRATION |
| title_fullStr | INFLUENCE OF THE SPECIMEN DEPTH TO LENGTH RATIO AND LAMINATION CONSTRUCTION ON YOUNG’S MODULUS AND IN-PLANE SHEAR MODULUS OF PLYWOOD MEASURED BY FLEXURAL VIBRATION |
| title_full_unstemmed | INFLUENCE OF THE SPECIMEN DEPTH TO LENGTH RATIO AND LAMINATION CONSTRUCTION ON YOUNG’S MODULUS AND IN-PLANE SHEAR MODULUS OF PLYWOOD MEASURED BY FLEXURAL VIBRATION |
| title_short | INFLUENCE OF THE SPECIMEN DEPTH TO LENGTH RATIO AND LAMINATION CONSTRUCTION ON YOUNG’S MODULUS AND IN-PLANE SHEAR MODULUS OF PLYWOOD MEASURED BY FLEXURAL VIBRATION |
| title_sort | influence of the specimen depth to length ratio and lamination construction on young s modulus and in plane shear modulus of plywood measured by flexural vibration |
| topic | Finite element analysis Flexural vibration method In-plane shear modulus Plywood Young’s modulus |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_1_1337_Yoshihara_Speciment_Dept_Length_Ratio_Laminate_Modulus_Vibration/1414 |
| work_keys_str_mv | AT hiroshiyoshihara influenceofthespecimendepthtolengthratioandlaminationconstructiononyoungsmodulusandinplaneshearmodulusofplywoodmeasuredbyflexuralvibration |