Ductility requirements for structural details with stress concentration and diffuse necking

Petr Hradil; Ludovic Fülöp; Asko Talja; Petri Ongelin

Ductility requirements for structural details with stress concentration and diffuse necking

Petr Hradil, Ludovic Fülöp, Asko Talja, Petri Ongelin

Rautaruukki Oyj

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

Abstract

Structural steels need to demonstrate certain ductility in order to be used in build-ings design. Fulfilling these criteria of design codes may be difficult especially for new high-strength steels where ductile fracture of tensile coupons appears at relatively low deformation. The goal of our study is to develop a calculation method of alternative ductility limits for structural details in a particular design situation. Such limits might be less demanding. Appli-cation of the method to a large variety of material models resulted in a simple criterion for the standard coupon test, the minimum distance between the uniform elongation and the coupon failure. This distance is called "necking capacity" of a tensile coupon in our paper.

Original language	English
Title of host publication	Proceedings of the International Colloquium on Stability and Ductility of Steel Structures
Editors	Dan Dubina, Viorel Ungureanu
Publisher	Ernst & Sohn
Pages	493-500
ISBN (Print)	978-92-91471-33-1
Publication status	Published - 2016
MoE publication type	A4 Article in a conference publication
Event	International Colloquium on Stability and Ductility of Steel Structures, SDSS 2016 - Timisoara, Romania Duration: 30 May 2016 → 1 Jun 2016

Conference

Conference	International Colloquium on Stability and Ductility of Steel Structures, SDSS 2016
Abbreviated title	SDSS 2016
Country/Territory	Romania
City	Timisoara
Period	30/05/16 → 1/06/16

Keywords

building materials
ductile fracture
ductility
steel structures
structural design
design situations
ductility requirement
low deformations
material models
minimum distance
structural details
structural steels
uniform elongation

Cite this

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title = "Ductility requirements for structural details with stress concentration and diffuse necking",

abstract = "Structural steels need to demonstrate certain ductility in order to be used in build-ings design. Fulfilling these criteria of design codes may be difficult especially for new high-strength steels where ductile fracture of tensile coupons appears at relatively low deformation. The goal of our study is to develop a calculation method of alternative ductility limits for structural details in a particular design situation. Such limits might be less demanding. Appli-cation of the method to a large variety of material models resulted in a simple criterion for the standard coupon test, the minimum distance between the uniform elongation and the coupon failure. This distance is called {"}necking capacity{"} of a tensile coupon in our paper.",

keywords = "building materials, ductile fracture, ductility, steel structures, structural design, design situations, ductility requirement, low deformations, material models, minimum distance, structural details, structural steels, uniform elongation",

author = "Petr Hradil and Ludovic F{\"u}l{\"o}p and Asko Talja and Petri Ongelin",

note = "Project code: 101158 ; International Colloquium on Stability and Ductility of Steel Structures, SDSS 2016, SDSS 2016 ; Conference date: 30-05-2016 Through 01-06-2016",

year = "2016",

language = "English",

isbn = "978-92-91471-33-1",

pages = "493--500",

editor = "Dan Dubina and Viorel Ungureanu",

booktitle = "Proceedings of the International Colloquium on Stability and Ductility of Steel Structures",

publisher = "Ernst & Sohn",

address = "Germany",

}

Hradil, P , Fülöp, L, Talja, A & Ongelin, P 2016, Ductility requirements for structural details with stress concentration and diffuse necking. in D Dubina & V Ungureanu (eds), Proceedings of the International Colloquium on Stability and Ductility of Steel Structures. Ernst & Sohn, pp. 493-500, International Colloquium on Stability and Ductility of Steel Structures, SDSS 2016, Timisoara, Romania, 30/05/16.

Ductility requirements for structural details with stress concentration and diffuse necking. / Hradil, Petr ; Fülöp, Ludovic; Talja, Asko et al.
Proceedings of the International Colloquium on Stability and Ductility of Steel Structures. ed. / Dan Dubina; Viorel Ungureanu. Ernst & Sohn, 2016. p. 493-500.

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

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AU - Fülöp, Ludovic

AU - Talja, Asko

AU - Ongelin, Petri

N1 - Project code: 101158

PY - 2016

Y1 - 2016

N2 - Structural steels need to demonstrate certain ductility in order to be used in build-ings design. Fulfilling these criteria of design codes may be difficult especially for new high-strength steels where ductile fracture of tensile coupons appears at relatively low deformation. The goal of our study is to develop a calculation method of alternative ductility limits for structural details in a particular design situation. Such limits might be less demanding. Appli-cation of the method to a large variety of material models resulted in a simple criterion for the standard coupon test, the minimum distance between the uniform elongation and the coupon failure. This distance is called "necking capacity" of a tensile coupon in our paper.

AB - Structural steels need to demonstrate certain ductility in order to be used in build-ings design. Fulfilling these criteria of design codes may be difficult especially for new high-strength steels where ductile fracture of tensile coupons appears at relatively low deformation. The goal of our study is to develop a calculation method of alternative ductility limits for structural details in a particular design situation. Such limits might be less demanding. Appli-cation of the method to a large variety of material models resulted in a simple criterion for the standard coupon test, the minimum distance between the uniform elongation and the coupon failure. This distance is called "necking capacity" of a tensile coupon in our paper.

KW - building materials

KW - ductile fracture

KW - ductility

KW - steel structures

KW - structural design

KW - design situations

KW - ductility requirement

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KW - material models

KW - minimum distance

KW - structural details

KW - structural steels

KW - uniform elongation

M3 - Conference article in proceedings

SN - 978-92-91471-33-1

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EP - 500

BT - Proceedings of the International Colloquium on Stability and Ductility of Steel Structures

A2 - Dubina, Dan

A2 - Ungureanu, Viorel

PB - Ernst & Sohn

T2 - International Colloquium on Stability and Ductility of Steel Structures, SDSS 2016

Y2 - 30 May 2016 through 1 June 2016

ER -

Ductility requirements for structural details with stress concentration and diffuse necking

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Keywords

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