Numerical simulation of loading of buried gas pipeline elbow after renovation of isolation coat during operation

• Autorzy: Janco R. , Podebradsky J.
• Konferencja: Applied Mechanics 2003, Gliwice, Polska
• Języki publikacji: PL

Abstrakty

EN

Because of economic reasons many of the maintenance and repair activities at the buried gas pipeline are performed during its operation. By digging off the earth from the sides of the pipeline in certain length there is a possibility that additional bending loading of the pipe occur due to its deflection. This is caused by the additional compressive force which originates in the buried pipeline as a result of a detained strain, when the longitudinal strain in the pipeline due to serace condition (internal pressure and heating) cannot be realized. In the paper a numerical simulation (using of program ANSYS) of buried gas pipeline elbow at backfill removal due to repair of isolation coat and following filling will be presented.

Słowa kluczowe

EN

buried gas pipeline; isolation coat during operation; ANSYS

• Wydawca: Wydawnictwo Katedry Mechaniki Stosowanej
• Czasopismo: Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
• Rocznik: 2003
• Tom: z. 21
• Strony: 101--106
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Janco R.

• Department of Strength of Materials, Faculty of Mechanical Engineering, Slovak University of Technology Bratislava, 812 43 Bratislava 1, Vazovova 5 tel. [phone]

autor

Podebradsky J.

• Department of Strength of Materials, Faculty of Mechanical Engineering, Slovak University of Technology Bratislava, 812 43 Bratislava 1, Vazovova 5 tel. [phone]

Bibliografia

• [1] Timoshenko S.: Strength of Materials. Part II. New York: D. Van Nostrand Company, Inc.1947.
• [2] Podebradsky J., Benca S., Elesztos P.: Determination of Mechanical Stress in Pipes The technical report, SjF STU Bratislava 2000.
• [3] Podebradsky J., Benca S., Elesztos P., Janco R.: Resultant stress state at crital lotacions of a pipeline laid at hilly terrain caused by its digging out during its operation. November SjF STU Bratislava 2002.