After distinguishing material ratcheting and structural ratcheting, different phenomena related to structural ratcheting are gathered. Ratcheting of elastic–plastic structures observed with stationary position of loads is distinguished from ratcheting with moving loads. Both categories are illustrated by examples. The effect of evolution laws for the internal variables describing kinematic hardening on the accumulation of strain due to a ratcheting mechanism, and whether the ratcheting mechanism ceases with the number of cycles so that the accumulated strains are limited, is discussed. Some conditions are shown, under which the Chaboche model can lead to shakedown. Scenarios where shakedown is guaranteed at every load level, or where it may or may not occur at a specific load level, or where it definitely cannot occur at any load level, are distinguished. Correspondingly, the usefulness of shakedown analyses, which are searching for maximum load factors assuring shakedown, or direct (or simplified) methods to obtain postshakedown quantities by avoiding incremental cyclic analyses is discussed.
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June 2019
Research-Article
Limited Versus Unlimited Strain Accumulation Due to Ratcheting Mechanisms
Hartwig Hübel,
Hartwig Hübel
Brandenburg University of Technology
Cottbus-Senftenberg,
Faculty 6,
Lipezker Str. 47,
Cottbus D-03048, Germany
e-mail: hartwig.huebel@b-tu.de
Cottbus-Senftenberg,
Faculty 6,
Lipezker Str. 47,
Cottbus D-03048, Germany
e-mail: hartwig.huebel@b-tu.de
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Bastian Vollrath
Bastian Vollrath
Brandenburg University of Technology
Cottbus-Senftenberg,
Faculty 6,
Lipezker Str. 47,
Cottbus D-03048, Germany
e-mail: bastian.vollrath@b-tu.de
Cottbus-Senftenberg,
Faculty 6,
Lipezker Str. 47,
Cottbus D-03048, Germany
e-mail: bastian.vollrath@b-tu.de
Search for other works by this author on:
Hartwig Hübel
Brandenburg University of Technology
Cottbus-Senftenberg,
Faculty 6,
Lipezker Str. 47,
Cottbus D-03048, Germany
e-mail: hartwig.huebel@b-tu.de
Cottbus-Senftenberg,
Faculty 6,
Lipezker Str. 47,
Cottbus D-03048, Germany
e-mail: hartwig.huebel@b-tu.de
Bastian Vollrath
Brandenburg University of Technology
Cottbus-Senftenberg,
Faculty 6,
Lipezker Str. 47,
Cottbus D-03048, Germany
e-mail: bastian.vollrath@b-tu.de
Cottbus-Senftenberg,
Faculty 6,
Lipezker Str. 47,
Cottbus D-03048, Germany
e-mail: bastian.vollrath@b-tu.de
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received August 8, 2018; final manuscript received February 11, 2019; published online March 25, 2019. Assoc. Editor: Oreste S. Bursi.
J. Pressure Vessel Technol. Jun 2019, 141(3): 031206 (10 pages)
Published Online: March 25, 2019
Article history
Received:
August 8, 2018
Revised:
February 11, 2019
Citation
Hübel, H., and Vollrath, B. (March 25, 2019). "Limited Versus Unlimited Strain Accumulation Due to Ratcheting Mechanisms." ASME. J. Pressure Vessel Technol. June 2019; 141(3): 031206. https://doi.org/10.1115/1.4042853
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