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Fatigue life and design stresses for wood composites used in furniture
Medium density fiberboard (MDF), oriented strandboard (OSB), and particleboard beams were tested on edge in order to determine their resistance to fatigue. Tests were carried out on selected stress levels that correspond to specific percentages of the material's ultimate strength (modulus of rupture, MOR). The relationship between level of stress and fatigue life was regular and, as anticipated, fatigue life decreased as levels of stress increased. Fatigue life amounted to over 1 million cycles when the stress level was 30 % of the MOR and decreased to 405 cycles for MDF and 10887 cycles for OSB at a stress level of 70 %. Results of the test suggest that allowable design stresses for the composite materials included in the study could likely be derived from a consideration of their fatigue resistance at various load levels.
Fatigue life and design stresses for wood composites used in furniture
Medium density fiberboard (MDF), oriented strandboard (OSB), and particleboard beams were tested on edge in order to determine their resistance to fatigue. Tests were carried out on selected stress levels that correspond to specific percentages of the material's ultimate strength (modulus of rupture, MOR). The relationship between level of stress and fatigue life was regular and, as anticipated, fatigue life decreased as levels of stress increased. Fatigue life amounted to over 1 million cycles when the stress level was 30 % of the MOR and decreased to 405 cycles for MDF and 10887 cycles for OSB at a stress level of 70 %. Results of the test suggest that allowable design stresses for the composite materials included in the study could likely be derived from a consideration of their fatigue resistance at various load levels.
Fatigue life and design stresses for wood composites used in furniture
Zeitschwingfestigkeit und zulässige Spannungen von in Möbeln eingesetzten Holzwerkstoffen
Bao, Zhao-Zhen (author) / Eckelman, C.A. (author)
Forest Products Journal ; 45 ; 59-63
1995
5 Seiten, 5 Bilder, 3 Tabellen, 10 Quellen
Article (Journal)
English
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