Application of mini specimens to high-cycle fatigue tests

• Autorzy: Sempruch J. , Tomaszewski T.
• Języki publikacji: EN

Abstrakty

EN

Determining complete material fatigue characteristics (S-N curve) is time-consuming and very expensive. Searching for faster procedures of determining the S-N curve, one can use approximate methods which are burdened with qualitative and quantitative error. Such characteristics differ from the real experimental studies results. Yet another method involves the use of mini specimens; the specimens the dimensions of which are lower than the normative sample. It allows for performing tests using much cheaper test stands. In the specimens researched there is a size effect which is broadly discussed in the available literature. The present work offers a review of the current theoretical knowledge on the size effect. There was analysed the geometry of mini specimens applied in experimental studies. Selected works with the use of mini specimens have been reviewed. Areas have been defined in which the mini specimen application is justifiable.

Słowa kluczowe

EN

size effect; mini specimen; S-N curve; fatigue

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2011
• Tom: Vol. 6, no 3
• Strony: 279--288
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Sempruch J.

autor

Tomaszewski T.

• University of Technology and Live Sciences in Bydgoszcz ul. Kaliskiego 7, 85-796 Bydgoszcz, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] ASTM E-466, Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials.
• [2] Carpinteri, A., Spagnoli, A., Vantadori, S., Size effect in S-N curves: A fractal approach to finite-life fatigue strength, Italy, 2009.
• [3] Furuya, Y., Specimen size effects on gigacycle fatigue properties of high-strength steel under ultrasonic fatigue testing, Japan, 2008.
• [4] Haftirman, The size effect on fatigue strength of structural steel materials in high – humidity environment, Malaysia, 2009.
• [5] Hirose, T., Sakasegawa, H., Kohyama, A., Katoh, Y., Tanigawa, H., Effect of specimen size on fatigue properties of reduced activation ferritic/martensitic steels, Japan, 2000.
• [6] Kocańda, S., Szala, J., Podstawy obliczeń zmęczeniowych, Poland, 1997.
• [7] Lee, Y., Pan, J., Hathaway, R. B., Barkey, M. E, Fatigue Testing and Analysis. Theory and Practice, United States of America, 2005.
• [8] Nakai, Y., Hashimoto, A., Imanishi, T., Hiwa, C., Size effect on fatigue strength of metallic micro-materials, Japan, 1999.
• [9] Neimitz, A., Dzioba, I., Graba, M., Okrajni, J., Ocena wytrzymałości, trwałości i bezpieczeństwa pracy elementów konstrukcyjnych zawierających defekty, Poland, 2008.
• [10] PN-74/H-04327, Badanie metali na zmęczenie. Próba osiowego rozciągania – ściskania przy stałym cyklu obciążeń zewnętrznych.