Modeling and simulation of deformation behavior, orientation gradient development and heterogeneous hardening in thin sheets with coarse texture

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

The purpose of this work is the modeling of the deformation behavior and orientation gradient development in a highly anisotropic thin metal sheet and comparison with experiment. This sheet consists of a single layer of "large" Fe-3%Si grains exhibiting a coarse texture. Since such materials are highly heterogeneous, they are modeled by combining single-crystal plasticity for each grain with the finite-element method for the grain morphology and specimen as a whole. The single-crystal model is rate-dependent, accounts for (local) dissipative hardening effects, and has been identified with the help of single-crystal data. In previous work Klusemann et al. (2012b), model predictions for the evolution of the specimen geometry and grain morphology during tension loading to large deformation have been shown to agree reasonably well with the corresponding experimental results of Henning and Vehoff (2005). In the current work, model predictions for the development of orientation gradients in the specimen under different modeling assumptions (e.g., active glide-system family) are compared with EBSD-based experimental results of Henning and Vehoff (2005). Model predictions for the development of geometrically necessary dislocations are also discussed. As well, additional measures of local orientation evolution such as reorientation are examined and compared with the orientation gradient picture. In addition, we examine the effect of additional grain boundary strengthening related to grain boundary misorientation and grain size and the effect of additional GND-based kinematic hardening.

OriginalspracheEnglisch
ZeitschriftInternational Journal of Plasticity
Jahrgang50
Seiten (von - bis)109-126
Anzahl der Seiten18
ISSN0749-6419
DOIs
PublikationsstatusErschienen - 11.2013
Extern publiziertJa

    Fachgebiete

  • Crystal plasticity, GND-based kinematic hardening, Grain boundary strengthening, Grain morphology, Oligocrystal, Orientation gradient, Reorientation
  • Ingenieurwissenschaften

DOI

Zuletzt angesehen

Forschende

  1. Anke Schmidt

Publikationen

  1. Closed-loop control of product geometry by using an artificial neural network in incremental sheet forming with active medium
  2. Continuous 3D scanning mode using servomotors instead of stepping motors in dynamic laser triangulation
  3. A discrete approximate solution for the asymptotic tracking problem in affine nonlinear systems
  4. Dividing Apples and Pears: Towards a Taxonomy for Agile Transformation
  5. What would Colin say?
  6. Operationalizing ecosystem services for the mitigation of soil threats
  7. Experience from downscaling IPCC-SRES scenarios to specific national-level focus scenarios for ecosystem service management
  8. Mapping Amazon's logistical footprint on the Ruhr
  9. Hot forging of cast magnesium alloy TX31 using semi-closed die and its finite element simulation
  10. How methods influence nature's values we find – A comparison of three elicitation methods
  11. Microstructural and mechanical aspects of reinforcement welds for lightweight components produced by friction hydro pillar processing
  12. Deconstructing and reconstructing diversity in client-provider-relationships of social work
  13. Root-root interactions: extending our perspective to be more inclusive of the range of theories in ecology and agriculture using in-vivo analyses
  14. What Role for Public Participation in Implementing the EU Floods Directive? A comparison with the Water Framework Directive, early evidence from Germany, and a research agenda
  15. Entangled – But How?
  16. NIF4OGGD - NLP interchange format for open German governmental data
  17. Deregulating to No Avail: How the Omnibus Package Falls Short in Simplifying Key EU Green Deal Instruments
  18. Assessing Exposure of Pesticides to Bees
  19. From temporal myopia to foresight: Bridging the near and the distant future through temporal work
  20. Pathways for Transformation
  21. Spatial scaling of extinction rates
  22. Comparative observations, empirical findings and research perspectives
  23. Schreiben
  24. Typewriting Dynamics
  25. What makes me angry on the bicycle
  26. Current overview of research on priority effects and its relevance to restoration
  27. Introduction
  28. A Method to Enhance the Accuracy of Time of Flight Measurement Systems