A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys

John A. Moore; Dana Frankel; Rajesh Prasannavenkatesan; August G. Domel; Gregory B. Olson; Wing Kam Liu

doi:10.1016/j.ijfatigue.2016.06.006

A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys

John A. Moore^*, Dana Frankel, Rajesh Prasannavenkatesan, August G. Domel, Gregory B. Olson, Wing Kam Liu

^*Corresponding author for this work

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

27 Scopus citations

Abstract

Nickel Titanium (NiTi) alloys are often used in biomedical devices where failure due to mechanical fatigue is common. For other alloy systems, computational models have proven an effective means of determining the relationship between microstructural features and fatigue life. This work will extend the subset of those models which were based on crystal plasticity to examine the relationship between microstructure and fatigue life in NiTi alloys. It will explore the interaction between a spherical inclusion and the material's free surface along with several NiTi microstructures reconstructed from 3D imaging. This work will determine the distance at which the free surface interacts with an inclusion and the effect of applied strain of surface-inclusion interaction. The effects of inclusion-inclusion interaction, matrix voiding, and matrix strengthening are explored and ranked with regards to their influence on fatigue life.

Original language	English (US)
Pages (from-to)	183-194
Number of pages	12
Journal	International Journal of Fatigue
Volume	91
DOIs	https://doi.org/10.1016/j.ijfatigue.2016.06.006
State	Published - Oct 1 2016

Funding

This work was performed under the following financial assistance award 70NANB13Hl94 from National Institute of Standards and Technology , and 70NANB14H012 from U.S. Department of Commerce, National Institute of Standards and Technology as part of the Center for Hierarchical Materials Design (CHiMaD) . This work was also performed, in part, under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 (LLNL-JRNL-675697). The majority of this work was part of the first author’s dissertation [62] and he would like to acknowledge the Predictive Science and Engineering Design (PSED) cluster at Northwestern University, Jacob Smith for his help with high performance computing and for providing the spherical inclusion mesh, and Hongyi Xu for the 3D reconstructions.

Keywords

Finite elements
Image-based modeling
Microstructures
Surface effects

ASJC Scopus subject areas

Modeling and Simulation
General Materials Science
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.ijfatigue.2016.06.006

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title = "A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys",

abstract = "Nickel Titanium (NiTi) alloys are often used in biomedical devices where failure due to mechanical fatigue is common. For other alloy systems, computational models have proven an effective means of determining the relationship between microstructural features and fatigue life. This work will extend the subset of those models which were based on crystal plasticity to examine the relationship between microstructure and fatigue life in NiTi alloys. It will explore the interaction between a spherical inclusion and the material's free surface along with several NiTi microstructures reconstructed from 3D imaging. This work will determine the distance at which the free surface interacts with an inclusion and the effect of applied strain of surface-inclusion interaction. The effects of inclusion-inclusion interaction, matrix voiding, and matrix strengthening are explored and ranked with regards to their influence on fatigue life.",

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author = "Moore, {John A.} and Dana Frankel and Rajesh Prasannavenkatesan and Domel, {August G.} and Olson, {Gregory B.} and Liu, {Wing Kam}",

note = "Funding Information: This work was performed under the following financial assistance award 70NANB13Hl94 from National Institute of Standards and Technology , and 70NANB14H012 from U.S. Department of Commerce, National Institute of Standards and Technology as part of the Center for Hierarchical Materials Design (CHiMaD) . This work was also performed, in part, under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 (LLNL-JRNL-675697). The majority of this work was part of the first author{\textquoteright}s dissertation [62] and he would like to acknowledge the Predictive Science and Engineering Design (PSED) cluster at Northwestern University, Jacob Smith for his help with high performance computing and for providing the spherical inclusion mesh, and Hongyi Xu for the 3D reconstructions.",

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AU - Olson, Gregory B.

AU - Liu, Wing Kam

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N2 - Nickel Titanium (NiTi) alloys are often used in biomedical devices where failure due to mechanical fatigue is common. For other alloy systems, computational models have proven an effective means of determining the relationship between microstructural features and fatigue life. This work will extend the subset of those models which were based on crystal plasticity to examine the relationship between microstructure and fatigue life in NiTi alloys. It will explore the interaction between a spherical inclusion and the material's free surface along with several NiTi microstructures reconstructed from 3D imaging. This work will determine the distance at which the free surface interacts with an inclusion and the effect of applied strain of surface-inclusion interaction. The effects of inclusion-inclusion interaction, matrix voiding, and matrix strengthening are explored and ranked with regards to their influence on fatigue life.

AB - Nickel Titanium (NiTi) alloys are often used in biomedical devices where failure due to mechanical fatigue is common. For other alloy systems, computational models have proven an effective means of determining the relationship between microstructural features and fatigue life. This work will extend the subset of those models which were based on crystal plasticity to examine the relationship between microstructure and fatigue life in NiTi alloys. It will explore the interaction between a spherical inclusion and the material's free surface along with several NiTi microstructures reconstructed from 3D imaging. This work will determine the distance at which the free surface interacts with an inclusion and the effect of applied strain of surface-inclusion interaction. The effects of inclusion-inclusion interaction, matrix voiding, and matrix strengthening are explored and ranked with regards to their influence on fatigue life.

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A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys

Abstract

Funding

Keywords

ASJC Scopus subject areas

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