TY - CHAP
T1 - Effect of autofrettage in the thick-walled cylinder with a radial cross-bore
AU - Li, Hongjun
AU - Johnston, Richard
AU - Mackenzie, Donald
N1 - Also published in: Journal of Pressure Vessel Technology (2010), 132 (1), pp011205-011210. (This is a variant record)
PY - 2007
Y1 - 2007
N2 - Paper presented at the 2007 ASME Pressure Vessels and Piping Conference, 22-26 July, San Antonio, Texas, USA.
The effect of autofrettage on the stress level in thick-walled cylinders with a radial cross-bore is investigated by applying inelastic FEA with cyclic pressure loading. A macro is created in ANSYS to calculate the equivalent alternating stress intensity, Seq, based on the ASME Boiler and Pressure Vessel Code. The value of Seq is used to evaluate the fatigue life of the vessel. For a specific cyclic load level, a distinct optimum autofrettage pressure is identified by plotting autofrettage pressure against the number of cycles from design fatigue data. The fatigue life of the autofrettaged vessel with such an optimum pressure is significantly increased compared with the case where no autofrettage is used.
AB - Paper presented at the 2007 ASME Pressure Vessels and Piping Conference, 22-26 July, San Antonio, Texas, USA.
The effect of autofrettage on the stress level in thick-walled cylinders with a radial cross-bore is investigated by applying inelastic FEA with cyclic pressure loading. A macro is created in ANSYS to calculate the equivalent alternating stress intensity, Seq, based on the ASME Boiler and Pressure Vessel Code. The value of Seq is used to evaluate the fatigue life of the vessel. For a specific cyclic load level, a distinct optimum autofrettage pressure is identified by plotting autofrettage pressure against the number of cycles from design fatigue data. The fatigue life of the autofrettaged vessel with such an optimum pressure is significantly increased compared with the case where no autofrettage is used.
KW - autofrettage
KW - thick-walled cylinder
KW - radia cross-bore
KW - inelastic finite element analysis
KW - ANSYS
KW - cyclic load
KW - fatigue
KW - pressure vessels
UR - http://www.ietdl.org/dbt/dbt.jsp?KEY=ASMECP&Volume=2007&Issue=42835
UR - http://strathprints.strath.ac.uk/15954/
UR - http://dx.doi.org/10.1115/PVP2007-26319
U2 - 10.1115/PVP2007-26319
DO - 10.1115/PVP2007-26319
M3 - Chapter
SN - 0-7918-4283-5
VL - 5: High Pressure Design and Analysis
SP - 11
EP - 17
BT - Proceedings of the 2007 ASME Pressure Vessels and Piping Conference
ER -