TY - GEN
T1 - Local deformed diameter analysis of a pipe in rigid encasement for water-crossings application
AU - Won, Jong Hwa
AU - Kim, Gun
AU - Jung, Sam Dong
AU - Park, Jung Won
AU - Kim, Do Hak
AU - Kim, Moon Kyum
PY - 2013
Y1 - 2013
N2 - This article presents a new type of stress assessment method for double-layered pressure vessel. Due to its robust strength, a steel-concrete composite pipe is generally installed in poor burial conditions. However, it is difficult to directly define the stress state on pipe sections. For the convenient stress estimation of pipes encased in non-circular concrete, this article suggests a Stress Index (SI), a function of the interface pressure and changed diameter, based on the interface pressure. The ovalization characteristics of plain pipes and of pipes encased by circular and rectangular concrete are examined. The resultant stresses are replaced by the non-dimensional ratio of diameter change; thus, the stress index has the advantage of application for stress assessment irrespective of pipe characteristics.
AB - This article presents a new type of stress assessment method for double-layered pressure vessel. Due to its robust strength, a steel-concrete composite pipe is generally installed in poor burial conditions. However, it is difficult to directly define the stress state on pipe sections. For the convenient stress estimation of pipes encased in non-circular concrete, this article suggests a Stress Index (SI), a function of the interface pressure and changed diameter, based on the interface pressure. The ovalization characteristics of plain pipes and of pipes encased by circular and rectangular concrete are examined. The resultant stresses are replaced by the non-dimensional ratio of diameter change; thus, the stress index has the advantage of application for stress assessment irrespective of pipe characteristics.
UR - http://www.scopus.com/inward/record.url?scp=84874132138&partnerID=8YFLogxK
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U2 - 10.1007/978-94-007-5860-5_137
DO - 10.1007/978-94-007-5860-5_137
M3 - Conference contribution
AN - SCOPUS:84874132138
SN - 9789400758599
T3 - Lecture Notes in Electrical Engineering
SP - 1147
EP - 1155
BT - IT Convergence and Security 2012
T2 - International Conference on IT Convergence and Security, ICITCS 2012
Y2 - 5 December 2012 through 7 December 2012
ER -