Abstract
| Language | English |
|---|---|
| Number of pages | 29 |
| Journal | Composite Structures |
| Publication status | Accepted/In press - 6 Mar 2019 |
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Keywords
- shakedown
- creep-cyclic plasticity interaction
- particulate reinforced titanium matrix composites (PRTMCs)
- reverse plasticity
- creep ratchetting
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Cyclic plasticity and creep-cyclic plasticity behaviours of the SiC/Ti-6242 particulate reinforced titanium matrix composites under thermo-mechanical loadings. / Giugliano, Dario; Cho, Nak-Kyun; Chen, Haofeng; Gentile, Lorenzo.
In: Composite Structures, 06.03.2019.Research output: Contribution to journal › Article
TY - JOUR
T1 - Cyclic plasticity and creep-cyclic plasticity behaviours of the SiC/Ti-6242 particulate reinforced titanium matrix composites under thermo-mechanical loadings
AU - Giugliano, Dario
AU - Cho, Nak-Kyun
AU - Chen, Haofeng
AU - Gentile, Lorenzo
PY - 2019/3/6
Y1 - 2019/3/6
N2 - The purpose of this work is to investigate the cyclic plasticity and creep-cyclic plasticity behaviours of particle reinforced titanium matrix composites (PRTMCs) SiC/Ti-6242, aimed to be used in high temperature applications. The investigation has been conducted upon microstructures that have been taken from a previous study where low-fidelity model-based optimization (LFMBO) has been used to maximise the elastic behaviour of particle reinforced aluminium matrix composites. The effect of the particle spatial distribution, particle fraction volume and number of particles on the shakedown limit, limit load and creep-cyclic plasticity have been explored by direct numerical techniques based on the Linear Matching Method (LMM) framework. The micromechanical approach to modelling and fifteen multi-particle unit cells have been investigated. Under cyclic loading conditions, the structural response of PRTMCs is not trivial and becomes even more significant when high temperature is involved. Hence, the factors that affect the creep and cyclic plasticity of PRTMCs are analysed and discussed, including effects of the applied load level, dwell period and temperature on the composites' performance. The applicability and accuracy of the proposed direct method has also been verified by the step-by-step analysis.
AB - The purpose of this work is to investigate the cyclic plasticity and creep-cyclic plasticity behaviours of particle reinforced titanium matrix composites (PRTMCs) SiC/Ti-6242, aimed to be used in high temperature applications. The investigation has been conducted upon microstructures that have been taken from a previous study where low-fidelity model-based optimization (LFMBO) has been used to maximise the elastic behaviour of particle reinforced aluminium matrix composites. The effect of the particle spatial distribution, particle fraction volume and number of particles on the shakedown limit, limit load and creep-cyclic plasticity have been explored by direct numerical techniques based on the Linear Matching Method (LMM) framework. The micromechanical approach to modelling and fifteen multi-particle unit cells have been investigated. Under cyclic loading conditions, the structural response of PRTMCs is not trivial and becomes even more significant when high temperature is involved. Hence, the factors that affect the creep and cyclic plasticity of PRTMCs are analysed and discussed, including effects of the applied load level, dwell period and temperature on the composites' performance. The applicability and accuracy of the proposed direct method has also been verified by the step-by-step analysis.
KW - shakedown
KW - creep-cyclic plasticity interaction
KW - particulate reinforced titanium matrix composites (PRTMCs)
KW - reverse plasticity
KW - creep ratchetting
UR - https://www.sciencedirect.com/journal/composite-structures
M3 - Article
JO - Composite Structures
T2 - Composite Structures
JF - Composite Structures
SN - 0263-8223
ER -