A geometrically nonlinear floating node method for damage modelling of composites

J. Zhi; B. Y. Chen; T. E. Tay

A geometrically nonlinear floating node method for damage modelling of composites

J. Zhi, B. Y. Chen, T. E. Tay

Aerospace Structures & Computational Mechanics

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

Tremendous efforts have been put into the study of structural integrity and the understanding of failure mechanisms in composites. Geometric non-linearity, receiving few attention in coupon-level simulations, can play an important role in the design and analysis of larger structures. This paper aims at extending the recently-developed Floating Node Method for damage analysis of laminated composites subjected to large deformations. The kinematics of strong discontinuities including interfacial delamination and matrix cracks are explicitly described in a geometrically nonlinear framework. Interactions between these two kinds of failure patterns are enabled through enriched elements equipped with floating nodes. To verify this proposed method, buckling-induced delamination and low-velocity impact damage are modelled, the results of which show good agreement with results from literature.

Original language	English
Title of host publication	ECCM 2018 - 18th European Conference on Composite Materials
Publisher	Applied Mechanics Laboratory
Number of pages	7
ISBN (Electronic)	9781510896932
Publication status	Published - 2020
Event	ECCM18: 18th European Conference on Composite Materials - Athens, Greece Duration: 24 Jun 2018 → 28 Jun 2018 Conference number: 18 http://www.eccm18.org/

Publication series

Name	ECCM 2018 - 18th European Conference on Composite Materials

Conference

Conference	ECCM18: 18th European Conference on Composite Materials
Abbreviated title	ECCM18
Country/Territory	Greece
City	Athens
Period	24/06/18 → 28/06/18
Internet address	http://www.eccm18.org/

Keywords

Delamination
Discrete crack methods
Large displacement
Matrix cracking

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Cite this

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title = "A geometrically nonlinear floating node method for damage modelling of composites",

abstract = "Tremendous efforts have been put into the study of structural integrity and the understanding of failure mechanisms in composites. Geometric non-linearity, receiving few attention in coupon-level simulations, can play an important role in the design and analysis of larger structures. This paper aims at extending the recently-developed Floating Node Method for damage analysis of laminated composites subjected to large deformations. The kinematics of strong discontinuities including interfacial delamination and matrix cracks are explicitly described in a geometrically nonlinear framework. Interactions between these two kinds of failure patterns are enabled through enriched elements equipped with floating nodes. To verify this proposed method, buckling-induced delamination and low-velocity impact damage are modelled, the results of which show good agreement with results from literature.",

keywords = "Delamination, Discrete crack methods, Large displacement, Matrix cracking",

author = "J. Zhi and Chen, {B. Y.} and Tay, {T. E.}",

year = "2020",

language = "English",

series = "ECCM 2018 - 18th European Conference on Composite Materials",

publisher = "Applied Mechanics Laboratory",

booktitle = "ECCM 2018 - 18th European Conference on Composite Materials",

note = "ECCM18: 18th European Conference on Composite Materials, ECCM18 ; Conference date: 24-06-2018 Through 28-06-2018",

url = "http://www.eccm18.org/",

}

A geometrically nonlinear floating node method for damage modelling of composites. / Zhi, J.; Chen, B. Y.; Tay, T. E.
ECCM 2018 - 18th European Conference on Composite Materials. Applied Mechanics Laboratory, 2020. (ECCM 2018 - 18th European Conference on Composite Materials).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - A geometrically nonlinear floating node method for damage modelling of composites

AU - Zhi, J.

AU - Chen, B. Y.

AU - Tay, T. E.

N1 - Conference code: 18

PY - 2020

Y1 - 2020

N2 - Tremendous efforts have been put into the study of structural integrity and the understanding of failure mechanisms in composites. Geometric non-linearity, receiving few attention in coupon-level simulations, can play an important role in the design and analysis of larger structures. This paper aims at extending the recently-developed Floating Node Method for damage analysis of laminated composites subjected to large deformations. The kinematics of strong discontinuities including interfacial delamination and matrix cracks are explicitly described in a geometrically nonlinear framework. Interactions between these two kinds of failure patterns are enabled through enriched elements equipped with floating nodes. To verify this proposed method, buckling-induced delamination and low-velocity impact damage are modelled, the results of which show good agreement with results from literature.

AB - Tremendous efforts have been put into the study of structural integrity and the understanding of failure mechanisms in composites. Geometric non-linearity, receiving few attention in coupon-level simulations, can play an important role in the design and analysis of larger structures. This paper aims at extending the recently-developed Floating Node Method for damage analysis of laminated composites subjected to large deformations. The kinematics of strong discontinuities including interfacial delamination and matrix cracks are explicitly described in a geometrically nonlinear framework. Interactions between these two kinds of failure patterns are enabled through enriched elements equipped with floating nodes. To verify this proposed method, buckling-induced delamination and low-velocity impact damage are modelled, the results of which show good agreement with results from literature.

KW - Delamination

KW - Discrete crack methods

KW - Large displacement

KW - Matrix cracking

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M3 - Conference contribution

T3 - ECCM 2018 - 18th European Conference on Composite Materials

BT - ECCM 2018 - 18th European Conference on Composite Materials

PB - Applied Mechanics Laboratory

T2 - ECCM18: 18th European Conference on Composite Materials

Y2 - 24 June 2018 through 28 June 2018

ER -

A geometrically nonlinear floating node method for damage modelling of composites

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Keywords

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