Residual strength of polymeric composites under cyclic load

• Autorzy: Bełzowski A.
• Konferencja: Environmental friendly materials and technologies in electrotechnics, September, 10-11,2003, Jamrozowa Polana
• Języki publikacji: EN

Abstrakty

EN

An account is presented of the phenomenon observed in polymer composites where fatigue-degraded material gradually loses its short-time test strength. A concept is put forward for evaluating the current safety factor value based on the stipulated strength value corresponding to the assumed confidence level of 95 or 99%. Reported are actual laboratory investigations on the residual strength variation in two structural composites. The results served a basis for comparing safety factors derived from the average and the stipulated strengths. It was demonstrated that the two estimates differ considerably, with a loss of life capacity predicted by the second one being a few times higher.

Słowa kluczowe

EN

composite materials; fatigue

PL

kompozyty; zmęczenie materiału

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje
• Rocznik: 2003
• Tom: Vol. 39, nr 14
• Strony: 49--55
• Opis fizyczny: bibliogr. 9 poz.

Twórcy

autor

Bełzowski A.

• Wroclaw Uniwersity of Technology, Departamental Division of Strength of Materials

Bibliografia

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• [6] MIGDALSKI J. (ed.), Reliability engineering (in Polish), ATR Bydgoszcz—ZETOM Warszawa, 1992.
• [7] BEŁZOWSKI A., Analysis of mechanical degradation in fibre—reinforced polymer composites and evaluation of damage extent (in Polish), II International Congress of Technical Diagnostics, Warszawa 2000, CD edition, pp. 1-10.
• [8] MURPHY J., Reinforced Plastics Handbook, Elsevier, 1994.
• [9] BEŁZOWSKI A., BŁAŻEJEWSKI W., High-pressure polymer composite vessels — mobile and automotive designs (in Polish), Dozór Techniczny 3/2001, pp. 53-57.