Interaction and multiscale mechanics

  • 제2권1호
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  • Pages.15-30
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  • 2009
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  • 1976-0426(pISSN)
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  • 2092-6200(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Interaction fields based on incompatibility tensor in field theory of plasticity-Part II: Application-

  • 투고 : 2008.03.23
  • 심사 : 2008.08.15
  • 발행 : 2009.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The theoretical framework of the interaction fields for multiple scales based on field theory is applied to one-dimensional problem mimicking dislocation substructure sensitive intra-granular inhomogeneity evolution under fatigue of Cu-added steels. Three distinct scale levels corresponding respectively to the orders of (A)dislocation substructures, (B)grain size and (C)grain aggregates are set-up based on FE-RKPM (reproducing kernel particle method) based interpolated strain distribution to obtain the incompatibility term in the interaction field. Comparisons between analytical conditions with and without the interaction, and that among different cell size in the scale A are simulated. The effect of interaction field on the B-scale field evolution is extensively examined. Finer and larger fluctuation is demonstrated to be obtained by taking account of the field interactions. Finer cell size exhibits larger field fluctuation whereas the coarse cell size yields negligible interaction effects.

키워드

참고문헌

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피인용 문헌

  1. FTMP-BASED MODELING AND SIMULATION OF MAGNESIUM vol.02, pp.03n04, 2013, https://doi.org/10.1142/S204768411350022X
  2. Modeling and Simulations of Experimentally-Observed Dislocation Substructures Based on Field Theory of Multiscale Plasticity (FTMP) Combined with TEM and EBSD-Wilkinson Method for FCC and BCC Poly/Single Crystals vol.55, pp.5, 2014, https://doi.org/10.2320/matertrans.M2013226
  3. FTMP-BASED SIMULATION OF TWIN NUCLEATION AND SUBSTRUCTURE EVOLUTION UNDER HYPERVELOCITY IMPACT vol.02, pp.03n04, 2013, https://doi.org/10.1142/S2047684113500218
  4. Interaction fields based on incompatibility tensor in field theory of plasticity-Part I: Theory- vol.2, pp.1, 2009, https://doi.org/10.12989/imm.2009.2.1.001