The mechanics and physics of high-speed dislocations: a critical review

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The mechanics and physics of high-speed dislocations : a critical review. / Gurrutxaga Lerma, Benat; Verschueren, Jonas ; Sutton, Adrian P.; Dini, Daniele.

In: International Materials Reviews, 15.04.2020.

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@article{c64c5195be25430b9bf2e94645ff6671,
title = "The mechanics and physics of high-speed dislocations: a critical review",
abstract = "High speed dislocations have long been identified as the dominant feature governing the plastic response of crystalline materials subjected to high strain rates, controlling deformation and failure in industrial processes such as machining, laser shock peening, punching, drilling, crashworthiness, foreign object damage, etc. Despite decades of study, the role high speed dislocations have on the materials response remains elusive. This article reviews both experimental and theoretical efforts made to address this issue in a systematic way. The lack of experimental evidence and direct observation of high speed dislocations means that most work on the matter is rooted on theory and simulations. This article offers a critical review of the competing theoretical accounts of high speed mechanisms, their underlying hypothesis, insights, and shortcomings, with particular focus on elastic continuum and atomistic levels. The article closes with an overview of the current state of the art and suggestions for key developments in future research.",
keywords = "high speed dislocations, plasticity, high strain rate, elastodynamics, lattice dynamics, molecular dynamics, mobility laws",
author = "{Gurrutxaga Lerma}, Benat and Jonas Verschueren and Sutton, {Adrian P.} and Daniele Dini",
year = "2020",
month = apr,
day = "15",
doi = "10.1080/09506608.2020.1749781",
language = "English",
journal = "International Materials Reviews",
issn = "0950-6608",
publisher = "ASM International",

}

RIS

TY - JOUR

T1 - The mechanics and physics of high-speed dislocations

T2 - a critical review

AU - Gurrutxaga Lerma, Benat

AU - Verschueren, Jonas

AU - Sutton, Adrian P.

AU - Dini, Daniele

PY - 2020/4/15

Y1 - 2020/4/15

N2 - High speed dislocations have long been identified as the dominant feature governing the plastic response of crystalline materials subjected to high strain rates, controlling deformation and failure in industrial processes such as machining, laser shock peening, punching, drilling, crashworthiness, foreign object damage, etc. Despite decades of study, the role high speed dislocations have on the materials response remains elusive. This article reviews both experimental and theoretical efforts made to address this issue in a systematic way. The lack of experimental evidence and direct observation of high speed dislocations means that most work on the matter is rooted on theory and simulations. This article offers a critical review of the competing theoretical accounts of high speed mechanisms, their underlying hypothesis, insights, and shortcomings, with particular focus on elastic continuum and atomistic levels. The article closes with an overview of the current state of the art and suggestions for key developments in future research.

AB - High speed dislocations have long been identified as the dominant feature governing the plastic response of crystalline materials subjected to high strain rates, controlling deformation and failure in industrial processes such as machining, laser shock peening, punching, drilling, crashworthiness, foreign object damage, etc. Despite decades of study, the role high speed dislocations have on the materials response remains elusive. This article reviews both experimental and theoretical efforts made to address this issue in a systematic way. The lack of experimental evidence and direct observation of high speed dislocations means that most work on the matter is rooted on theory and simulations. This article offers a critical review of the competing theoretical accounts of high speed mechanisms, their underlying hypothesis, insights, and shortcomings, with particular focus on elastic continuum and atomistic levels. The article closes with an overview of the current state of the art and suggestions for key developments in future research.

KW - high speed dislocations

KW - plasticity

KW - high strain rate

KW - elastodynamics

KW - lattice dynamics

KW - molecular dynamics

KW - mobility laws

UR - http://www.scopus.com/inward/record.url?scp=85083519648&partnerID=8YFLogxK

U2 - 10.1080/09506608.2020.1749781

DO - 10.1080/09506608.2020.1749781

M3 - Article

JO - International Materials Reviews

JF - International Materials Reviews

SN - 0950-6608

ER -