TY - GEN
T1 - Application of elastic-perfectly plastic cyclic analysis to assessment of creep strain
AU - Carter, Peter
AU - Jetter, Robert I.
AU - Sham, T. L.
PY - 2012
Y1 - 2012
N2 - A cyclic elastic-perfectly plastic analysis method is proposed which provides a conservative estimate to cyclic creep strain accumulation within the ratchet boundary. The method is to check for ratcheting based on an elastic-perfectly material with a temperature-dependent pseudo yield stress defined by temperature, time and stress to give 1% accumulated inelastic strain. It does not require stress classification and is also applicable to a full range of temperature within and below the creep regime. This simplified method could be used as a rapid screening calculation, with full time-dependent creep analysis used if necessary. An ASME Boiler and Pressure Vessel Code, Section III draft Code Case based on this simplified method is introduced.
AB - A cyclic elastic-perfectly plastic analysis method is proposed which provides a conservative estimate to cyclic creep strain accumulation within the ratchet boundary. The method is to check for ratcheting based on an elastic-perfectly material with a temperature-dependent pseudo yield stress defined by temperature, time and stress to give 1% accumulated inelastic strain. It does not require stress classification and is also applicable to a full range of temperature within and below the creep regime. This simplified method could be used as a rapid screening calculation, with full time-dependent creep analysis used if necessary. An ASME Boiler and Pressure Vessel Code, Section III draft Code Case based on this simplified method is introduced.
UR - https://www.scopus.com/pages/publications/84882996077
U2 - 10.1115/PVP2012-78082
DO - 10.1115/PVP2012-78082
M3 - Conference contribution
AN - SCOPUS:84882996077
SN - 9780791855003
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
SP - 749
EP - 760
BT - ASME 2012 Pressure Vessels and Piping Conference, PVP 2012
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2012 Pressure Vessels and Piping Conference, PVP 2012
Y2 - 15 July 2012 through 19 July 2012
ER -