Determination of fatigue properties for Turkish red pine (Pinus brutia Ten.)

Turkish Journal of Forestry

关键词: kızılçam;    yorulma ömrü;    modelleme;    -;    turkish red pine wood;    fatigue life;    modelling;   

DOI  :  10.18182/tjf.64278

来源: DOAJ

【 摘 要 】

In this study, fatigue strength of red pine (Pinus brutia Ten.) wood was evaluated by applying 15 and 20 cycles per minute and 30% to 70% – 5 different load of static bending strength to small clear wood specimens. The study showed that fatigue life of Turkish red pine wood amounted over 1 million cycles when the stress level was 30 and 40%. In general, there is an inverse relationship between load level (S) and fatigue life (N). This relationship was modeled using nonlinear regression. Fatigue life of red pine wood can be predicted using the equation of Log (N) = A * log (S) + B. Since, fatigue tests are time consuming, only 15 and 20 cycles per minute frequencies were used in the study. By applying more and less frequent loading schemes, the fatigue behavior of red pine wood can be well understood.

【 授权许可】

Unknown