Ship collision simulations using different fracture criteria and mesh size

Mihkel Körgesaar; Kristjan Tabri; Hendrik Naar; Edvin Reinhold

doi:10.1115/OMAE2014-23576

Ship collision simulations using different fracture criteria and mesh size

Mihkel Körgesaar^*, Kristjan Tabri, Hendrik Naar, Edvin Reinhold

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

8 Citations (Scopus)

Abstract

There is a wide range of fracture criteria available in the literature to simulate the ductile fracture in large structures. Almost all criteria depend in some form on the mesh size and some criteria also account the effect of the stress state on the fracture ductility. Furthermore, a material model employed could considerably influence the analysis results. Therefore, in this study, four different fracture criteria, three different mesh densities and two different material models are used to simulate ship collision with a rigid bulb. Thereby, plastic dissipation energy, force-displacement curves and structural failure mechanism is compared between different fracture criteria. Advantages and disadvantages of each criterion are discussed.

Original language	English
Title of host publication	Structures, Safety and Reliability
Publisher	American Society of Mechanical Engineers
Number of pages	9
Volume	4A
ISBN (Electronic)	9780791845424
DOIs	https://doi.org/10.1115/OMAE2014-23576
Publication status	Published - 2014
MoE publication type	A4 Conference publication
Event	International Conference on Ocean, Offshore and Arctic Engineering - San Francisco, United States Duration: 8 Jun 2014 → 13 Jun 2014 Conference number: 33

Conference

Conference	International Conference on Ocean, Offshore and Arctic Engineering
Abbreviated title	OMAE
Country/Territory	United States
City	San Francisco
Period	08/06/2014 → 13/06/2014

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title = "Ship collision simulations using different fracture criteria and mesh size",

abstract = "There is a wide range of fracture criteria available in the literature to simulate the ductile fracture in large structures. Almost all criteria depend in some form on the mesh size and some criteria also account the effect of the stress state on the fracture ductility. Furthermore, a material model employed could considerably influence the analysis results. Therefore, in this study, four different fracture criteria, three different mesh densities and two different material models are used to simulate ship collision with a rigid bulb. Thereby, plastic dissipation energy, force-displacement curves and structural failure mechanism is compared between different fracture criteria. Advantages and disadvantages of each criterion are discussed.",

author = "Mihkel K{\"o}rgesaar and Kristjan Tabri and Hendrik Naar and Edvin Reinhold",

year = "2014",

doi = "10.1115/OMAE2014-23576",

language = "English",

volume = "4A",

booktitle = "Structures, Safety and Reliability",

publisher = "American Society of Mechanical Engineers",

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note = "International Conference on Ocean, Offshore and Arctic Engineering<br/>, OMAE ; Conference date: 08-06-2014 Through 13-06-2014",

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Körgesaar, M, Tabri, K, Naar, H & Reinhold, E 2014, Ship collision simulations using different fracture criteria and mesh size. in Structures, Safety and Reliability. vol. 4A, American Society of Mechanical Engineers, International Conference on Ocean, Offshore and Arctic Engineering
, San Francisco, California, United States, 08/06/2014. https://doi.org/10.1115/OMAE2014-23576

TY - GEN

T1 - Ship collision simulations using different fracture criteria and mesh size

AU - Körgesaar, Mihkel

AU - Tabri, Kristjan

AU - Naar, Hendrik

AU - Reinhold, Edvin

N1 - Conference code: 33

PY - 2014

Y1 - 2014

N2 - There is a wide range of fracture criteria available in the literature to simulate the ductile fracture in large structures. Almost all criteria depend in some form on the mesh size and some criteria also account the effect of the stress state on the fracture ductility. Furthermore, a material model employed could considerably influence the analysis results. Therefore, in this study, four different fracture criteria, three different mesh densities and two different material models are used to simulate ship collision with a rigid bulb. Thereby, plastic dissipation energy, force-displacement curves and structural failure mechanism is compared between different fracture criteria. Advantages and disadvantages of each criterion are discussed.

AB - There is a wide range of fracture criteria available in the literature to simulate the ductile fracture in large structures. Almost all criteria depend in some form on the mesh size and some criteria also account the effect of the stress state on the fracture ductility. Furthermore, a material model employed could considerably influence the analysis results. Therefore, in this study, four different fracture criteria, three different mesh densities and two different material models are used to simulate ship collision with a rigid bulb. Thereby, plastic dissipation energy, force-displacement curves and structural failure mechanism is compared between different fracture criteria. Advantages and disadvantages of each criterion are discussed.

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U2 - 10.1115/OMAE2014-23576

DO - 10.1115/OMAE2014-23576

M3 - Conference article in proceedings

AN - SCOPUS:84910593884

VL - 4A

BT - Structures, Safety and Reliability

PB - American Society of Mechanical Engineers

T2 - International Conference on Ocean, Offshore and Arctic Engineering<br/>

Y2 - 8 June 2014 through 13 June 2014

ER -

Ship collision simulations using different fracture criteria and mesh size

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