TY - JOUR
T1 - Linear matching method for creep rupture assessment
AU - Chen, Haofeng
AU - Engelhardt, M.J.
AU - Ponter, Alan R.S.
PY - 2003
Y1 - 2003
N2 - The recently developed Linear Matching Method (LMM), which is easily implemented within commercial FE codes, has been successfully used to evaluate elastic and plastic shakedown
loads [1-7]. In this paper, the method is extended to the prediction of the creep rupture life of a structure, based upon a bounding method currently used in the life assessment method R5. The method corresponds to the requirement that, for the operating load history, the structure should
shakedown where the yield stress is given by the lesser of the plastic yield stress and a high temperature rupture stress corresponding to a rupture time. A holed plate subjected to cyclic thermal load and constant mechanical load is assessed in detail as a typical example to confirm the applicability of the above procedures. The examples show that the method remains numerically stable, even when the method is inverted.
AB - The recently developed Linear Matching Method (LMM), which is easily implemented within commercial FE codes, has been successfully used to evaluate elastic and plastic shakedown
loads [1-7]. In this paper, the method is extended to the prediction of the creep rupture life of a structure, based upon a bounding method currently used in the life assessment method R5. The method corresponds to the requirement that, for the operating load history, the structure should
shakedown where the yield stress is given by the lesser of the plastic yield stress and a high temperature rupture stress corresponding to a rupture time. A holed plate subjected to cyclic thermal load and constant mechanical load is assessed in detail as a typical example to confirm the applicability of the above procedures. The examples show that the method remains numerically stable, even when the method is inverted.
KW - linear matching
KW - shakedown
KW - creep rupture
KW - materials science
UR - http://dx.doi.org/10.1016/S0308-0161(03)00047-4
U2 - 10.1016/S0308-0161(03)00047-4
DO - 10.1016/S0308-0161(03)00047-4
M3 - Article
SN - 0308-0161
VL - 80
SP - 213
EP - 220
JO - International Journal of Pressure Vessels and Piping
JF - International Journal of Pressure Vessels and Piping
ER -