A Simple Numerical Method of Cycle Jumps for Cyclically Loaded Structures

D. Cojocaru; Anette M Karlsson

doi:10.1016/j.ijfatigue.2006.01.010

A Simple Numerical Method of Cycle Jumps for Cyclically Loaded Structures

D. Cojocaru, Anette M Karlsson

University of Delaware

Research output: Contribution to journal › Article › peer-review

Abstract

A method for accelerated numerical simulations of structures subjected to cyclic loading is investigated. Of particular interest is a class of structures where the structural properties evolve with time. The proposed method is based on conducting detailed finite element analysis for a set of cycles to establish a trend line, extrapolating the trend line spanning many cycles, and use the extrapolated state as initial state for additional FEA simulations. This includes a control function that automatically monitors the length of the cycle jump to ensure a realistic solution. We compare the proposed method to a reference calculation, where all incremental cycles are conducted, and find that the cycle jump solution replicates the true solution.

Original language	American English
Journal	International Journal of Fatigue
Volume	28
DOIs	https://doi.org/10.1016/j.ijfatigue.2006.01.010
State	Published - Dec 1 2006

Keywords

Finite element; Cyclic loading; Cycle jump; Thermal barrier coatings; Failure evolution

Disciplines

Mechanical Engineering

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10.1016/j.ijfatigue.2006.01.010License: CC BY

A Simple Numerical Method of Cycle Jumps for Cyclically Loaded StFinal published version, 2.13 MBLicense: CC BY

http://journals.ohiolink.edu/ejc/article.cgi?issn=01421123&issue=v28i0012&article=1677_asnmocjfcls

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title = "A Simple Numerical Method of Cycle Jumps for Cyclically Loaded Structures",

abstract = " A method for accelerated numerical simulations of structures subjected to cyclic loading is investigated. Of particular interest is a class of structures where the structural properties evolve with time. The proposed method is based on conducting detailed finite element analysis for a set of cycles to establish a trend line, extrapolating the trend line spanning many cycles, and use the extrapolated state as initial state for additional FEA simulations. This includes a control function that automatically monitors the length of the cycle jump to ensure a realistic solution. We compare the proposed method to a reference calculation, where all incremental cycles are conducted, and find that the cycle jump solution replicates the true solution.",

keywords = "Finite element; Cyclic loading; Cycle jump; Thermal barrier coatings; Failure evolution",

author = "D. Cojocaru and Karlsson, \{Anette M\}",

note = "Cojocaru, D., and Karlsson, A. M., 2006, {"}A Simple Numerical Method of Cycle Jumps for Cyclically Loaded Structures,{"} International Journal of Fatigue, 28(12) pp. 1677-1689.",

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AU - Karlsson, Anette M

N1 - Cojocaru, D., and Karlsson, A. M., 2006, "A Simple Numerical Method of Cycle Jumps for Cyclically Loaded Structures," International Journal of Fatigue, 28(12) pp. 1677-1689.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - A method for accelerated numerical simulations of structures subjected to cyclic loading is investigated. Of particular interest is a class of structures where the structural properties evolve with time. The proposed method is based on conducting detailed finite element analysis for a set of cycles to establish a trend line, extrapolating the trend line spanning many cycles, and use the extrapolated state as initial state for additional FEA simulations. This includes a control function that automatically monitors the length of the cycle jump to ensure a realistic solution. We compare the proposed method to a reference calculation, where all incremental cycles are conducted, and find that the cycle jump solution replicates the true solution.

AB - A method for accelerated numerical simulations of structures subjected to cyclic loading is investigated. Of particular interest is a class of structures where the structural properties evolve with time. The proposed method is based on conducting detailed finite element analysis for a set of cycles to establish a trend line, extrapolating the trend line spanning many cycles, and use the extrapolated state as initial state for additional FEA simulations. This includes a control function that automatically monitors the length of the cycle jump to ensure a realistic solution. We compare the proposed method to a reference calculation, where all incremental cycles are conducted, and find that the cycle jump solution replicates the true solution.

KW - Finite element; Cyclic loading; Cycle jump; Thermal barrier coatings; Failure evolution

UR - https://engagedscholarship.csuohio.edu/enme_facpub/133

U2 - 10.1016/j.ijfatigue.2006.01.010

DO - 10.1016/j.ijfatigue.2006.01.010

M3 - Article

VL - 28

JO - International Journal of Fatigue

JF - International Journal of Fatigue

ER -

A Simple Numerical Method of Cycle Jumps for Cyclically Loaded Structures

Abstract

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