Dislocation Mechanics of Metal Plasticity and Fracturing
The modern understanding of metal plasticity and fracturing began about 100 years ago, with pioneering work; first, on crack-induced fracturing by Griffith and, second, with the invention of dislocation-enhanced crystal plasticity by Taylor, Orowan and Polanyi. The modern counterparts are fracture m...
I tiakina i:
| Hōputu: | Online |
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| Reo: | Ingarihi |
| I whakaputaina: |
MDPI - Multidisciplinary Digital Publishing Institute
2021
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| Urunga tuihono: | ONIX_20210501_9783039432646_996 |
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Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!
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| _version_ | 1869528185267290112 |
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| collection | Directory of Open Access Books |
| description | The modern understanding of metal plasticity and fracturing began about 100 years ago, with pioneering work; first, on crack-induced fracturing by Griffith and, second, with the invention of dislocation-enhanced crystal plasticity by Taylor, Orowan and Polanyi. The modern counterparts are fracture mechanics, as invented by Irwin, and dislocation mechanics, as initiated in pioneering work by Cottrell. No less important was the breakthrough development of optical characterization of sectioned polycrystalline metal microstructures started by Sorby in the late 19th century and leading eventually to modern optical, x-ray and electron microscopy methods for assessments of crystal fracture surfaces, via fractography, and particularly of x-ray and electron microscopy techniques applied to quantitative characterizations of internal dislocation behaviors. A major current effort is to match computational simulations of metal deformation/fracturing behaviors with experimental measurements made over extended ranges of microstructures and over varying external conditions of stress-state, temperature and loading rate. The relation of such simulations to the development of constitutive equations for a hoped-for predictive description of material deformation/fracturing behaviors is an active topic of research. The present collection of articles provides a broad sampling of research accomplishments on the two subjects. |
| format | Online |
| id | doab-20.500.12854ir-69250 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | MDPI - Multidisciplinary Digital Publishing Institute |
| publisherStr | MDPI - Multidisciplinary Digital Publishing Institute |
| record_format | ojs |
| spelling | doab-20.500.12854ir-692502024-03-27T16:34:43Z Dislocation Mechanics of Metal Plasticity and Fracturing Armstrong, Ronald W. dislocation mechanics yield strength grain size thermal activation strain rate impact tests brittleness transition fracturing crack size fracture mechanics Hall-Petch equation Griffith equation size effect mechanical strength pearlitic steels suspension bridge cables dislocation microstructure fractal analysis plasticity representative volume element dislocation structure dislocation correlations dislocation avalanches nanotwin nanograin Au–Cu alloy micro-compression Cu-Zr ECAP deformation quasi-stationary subgrains grains coarsening Cu–Zr ultrafine-grained material dynamic recovery transient load change tests Charpy impact test GMAW additive manufacturing secondary cracks anisotropy linear flow splitting crystal plasticity DAMASK texture EBSD crack tip dislocations TEM grain rotation fatigue dislocation configurations residual stress indentation serration temperature dislocation artificial aging solid solution loading curvature aluminum alloy holistic approach dislocation group dynamics dynamic factor dislocation pile-up yield stress dislocation creep fatigue crack growth rate thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general The modern understanding of metal plasticity and fracturing began about 100 years ago, with pioneering work; first, on crack-induced fracturing by Griffith and, second, with the invention of dislocation-enhanced crystal plasticity by Taylor, Orowan and Polanyi. The modern counterparts are fracture mechanics, as invented by Irwin, and dislocation mechanics, as initiated in pioneering work by Cottrell. No less important was the breakthrough development of optical characterization of sectioned polycrystalline metal microstructures started by Sorby in the late 19th century and leading eventually to modern optical, x-ray and electron microscopy methods for assessments of crystal fracture surfaces, via fractography, and particularly of x-ray and electron microscopy techniques applied to quantitative characterizations of internal dislocation behaviors. A major current effort is to match computational simulations of metal deformation/fracturing behaviors with experimental measurements made over extended ranges of microstructures and over varying external conditions of stress-state, temperature and loading rate. The relation of such simulations to the development of constitutive equations for a hoped-for predictive description of material deformation/fracturing behaviors is an active topic of research. The present collection of articles provides a broad sampling of research accomplishments on the two subjects. 2021-05-01T15:44:44Z 2021-05-01T15:44:44Z 2020 book ONIX_20210501_9783039432646_996 9783039432646 9783039432653 https://directory.doabooks.org/handle/20.500.12854/69250 eng application/octet-stream Attribution 4.0 International https://mdpi.com/books/pdfview/book/3037 https://mdpi.com/books/pdfview/book/3037 MDPI - Multidisciplinary Digital Publishing Institute 10.3390/books978-3-03943-265-3 10.3390/books978-3-03943-265-3 46cabcaa-dd94-4bfe-87b4-55023c1b36d0 9783039432646 9783039432653 188 Basel, Switzerland open access |
| spellingShingle | dislocation mechanics yield strength grain size thermal activation strain rate impact tests brittleness transition fracturing crack size fracture mechanics Hall-Petch equation Griffith equation size effect mechanical strength pearlitic steels suspension bridge cables dislocation microstructure fractal analysis plasticity representative volume element dislocation structure dislocation correlations dislocation avalanches nanotwin nanograin Au–Cu alloy micro-compression Cu-Zr ECAP deformation quasi-stationary subgrains grains coarsening Cu–Zr ultrafine-grained material dynamic recovery transient load change tests Charpy impact test GMAW additive manufacturing secondary cracks anisotropy linear flow splitting crystal plasticity DAMASK texture EBSD crack tip dislocations TEM grain rotation fatigue dislocation configurations residual stress indentation serration temperature dislocation artificial aging solid solution loading curvature aluminum alloy holistic approach dislocation group dynamics dynamic factor dislocation pile-up yield stress dislocation creep fatigue crack growth rate thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general Dislocation Mechanics of Metal Plasticity and Fracturing |
| title | Dislocation Mechanics of Metal Plasticity and Fracturing |
| title_full | Dislocation Mechanics of Metal Plasticity and Fracturing |
| title_fullStr | Dislocation Mechanics of Metal Plasticity and Fracturing |
| title_full_unstemmed | Dislocation Mechanics of Metal Plasticity and Fracturing |
| title_short | Dislocation Mechanics of Metal Plasticity and Fracturing |
| title_sort | dislocation mechanics of metal plasticity and fracturing |
| topic | dislocation mechanics yield strength grain size thermal activation strain rate impact tests brittleness transition fracturing crack size fracture mechanics Hall-Petch equation Griffith equation size effect mechanical strength pearlitic steels suspension bridge cables dislocation microstructure fractal analysis plasticity representative volume element dislocation structure dislocation correlations dislocation avalanches nanotwin nanograin Au–Cu alloy micro-compression Cu-Zr ECAP deformation quasi-stationary subgrains grains coarsening Cu–Zr ultrafine-grained material dynamic recovery transient load change tests Charpy impact test GMAW additive manufacturing secondary cracks anisotropy linear flow splitting crystal plasticity DAMASK texture EBSD crack tip dislocations TEM grain rotation fatigue dislocation configurations residual stress indentation serration temperature dislocation artificial aging solid solution loading curvature aluminum alloy holistic approach dislocation group dynamics dynamic factor dislocation pile-up yield stress dislocation creep fatigue crack growth rate thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general |
| topic_facet | dislocation mechanics yield strength grain size thermal activation strain rate impact tests brittleness transition fracturing crack size fracture mechanics Hall-Petch equation Griffith equation size effect mechanical strength pearlitic steels suspension bridge cables dislocation microstructure fractal analysis plasticity representative volume element dislocation structure dislocation correlations dislocation avalanches nanotwin nanograin Au–Cu alloy micro-compression Cu-Zr ECAP deformation quasi-stationary subgrains grains coarsening Cu–Zr ultrafine-grained material dynamic recovery transient load change tests Charpy impact test GMAW additive manufacturing secondary cracks anisotropy linear flow splitting crystal plasticity DAMASK texture EBSD crack tip dislocations TEM grain rotation fatigue dislocation configurations residual stress indentation serration temperature dislocation artificial aging solid solution loading curvature aluminum alloy holistic approach dislocation group dynamics dynamic factor dislocation pile-up yield stress dislocation creep fatigue crack growth rate thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general |
| url | ONIX_20210501_9783039432646_996 |