Wrinkles, folds, and ripplocations: Unusual deformation structures of confined elastic sheets at nonzero temperatures

Debankur Das; Jürgen Horbach; Peter Sollich; Tanusri Saha-Dasgupta; Surajit Sengupta

doi:10.1103/PhysRevResearch.2.043284

Wrinkles, folds, and ripplocations: Unusual deformation structures of confined elastic sheets at nonzero temperatures

Debankur Das, Jürgen Horbach, Peter Sollich, Tanusri Saha-Dasgupta, Surajit Sengupta

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We study the deformation of a fluctuating crystalline sheet confined between two flat rigid walls as a simple model for layered solids where bonds among atoms within the same layer are much stronger than those between layers. When subjected to sufficiently high loads in an appropriate geometry, these solids deform and fail in unconventional ways. Recent experiments suggest that configurations named ripplocations, where a layer folds backwards over itself, are involved. These structures are distinct and separated by large free-energy barriers from smooth ripples of the atomic layers that are always present at any nonzero temperature. We use Monte Carlo simulation in combination with an umbrella sampling technique to obtain conditions under which such structures form and study their specific experimental signatures.

Original language	English
Article number	043284
Journal	Physical Review Research
Volume	2
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevResearch.2.043284
Publication status	Published - 25 Nov 2020

Access to Document

10.1103/PhysRevResearch.2.043284

Cite this

@article{e65c183bc5f5408ab4c92e71a91310ce,

title = "Wrinkles, folds, and ripplocations: Unusual deformation structures of confined elastic sheets at nonzero temperatures",

abstract = "We study the deformation of a fluctuating crystalline sheet confined between two flat rigid walls as a simple model for layered solids where bonds among atoms within the same layer are much stronger than those between layers. When subjected to sufficiently high loads in an appropriate geometry, these solids deform and fail in unconventional ways. Recent experiments suggest that configurations named ripplocations, where a layer folds backwards over itself, are involved. These structures are distinct and separated by large free-energy barriers from smooth ripples of the atomic layers that are always present at any nonzero temperature. We use Monte Carlo simulation in combination with an umbrella sampling technique to obtain conditions under which such structures form and study their specific experimental signatures.",

author = "Debankur Das and J{\"u}rgen Horbach and Peter Sollich and Tanusri Saha-Dasgupta and Surajit Sengupta",

year = "2020",

month = nov,

day = "25",

doi = "10.1103/PhysRevResearch.2.043284",

language = "English",

volume = "2",

journal = "Physical Review Research",

issn = "2643-1564",

publisher = "American Physical Society (APS)",

number = "4",

}

TY - JOUR

T1 - Wrinkles, folds, and ripplocations

T2 - Unusual deformation structures of confined elastic sheets at nonzero temperatures

AU - Das, Debankur

AU - Horbach, Jürgen

AU - Sollich, Peter

AU - Saha-Dasgupta, Tanusri

AU - Sengupta, Surajit

PY - 2020/11/25

Y1 - 2020/11/25

N2 - We study the deformation of a fluctuating crystalline sheet confined between two flat rigid walls as a simple model for layered solids where bonds among atoms within the same layer are much stronger than those between layers. When subjected to sufficiently high loads in an appropriate geometry, these solids deform and fail in unconventional ways. Recent experiments suggest that configurations named ripplocations, where a layer folds backwards over itself, are involved. These structures are distinct and separated by large free-energy barriers from smooth ripples of the atomic layers that are always present at any nonzero temperature. We use Monte Carlo simulation in combination with an umbrella sampling technique to obtain conditions under which such structures form and study their specific experimental signatures.

AB - We study the deformation of a fluctuating crystalline sheet confined between two flat rigid walls as a simple model for layered solids where bonds among atoms within the same layer are much stronger than those between layers. When subjected to sufficiently high loads in an appropriate geometry, these solids deform and fail in unconventional ways. Recent experiments suggest that configurations named ripplocations, where a layer folds backwards over itself, are involved. These structures are distinct and separated by large free-energy barriers from smooth ripples of the atomic layers that are always present at any nonzero temperature. We use Monte Carlo simulation in combination with an umbrella sampling technique to obtain conditions under which such structures form and study their specific experimental signatures.

UR - http://www.scopus.com/inward/record.url?scp=85115899789&partnerID=8YFLogxK

U2 - 10.1103/PhysRevResearch.2.043284

DO - 10.1103/PhysRevResearch.2.043284

M3 - Article

AN - SCOPUS:85115899789

SN - 2643-1564

VL - 2

JO - Physical Review Research

JF - Physical Review Research

IS - 4

M1 - 043284

ER -

Wrinkles, folds, and ripplocations: Unusual deformation structures of confined elastic sheets at nonzero temperatures

Abstract

Access to Document

Other files and links

Fingerprint

Cite this