Fatigue design using the structure stress concept for welded metal structures

Niclas Rausch; Martin Mensinger

Fatigue design using the structure stress concept for welded metal structures

Niclas Rausch
, Martin Mensinger

Chair of Metal Structures

Technical University of Munich

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Due to the progress in FE calculations, local stress increases of welded metal structures can be evaluated more precisely using the structure stress approach (hot-spot stress concept). Inadequate regulations, however, lead to significant uncertainties with this approach. There is a deficiency in instructions on modelling, stress determination and methods for dealing with misalignment and thickness influences. Therefore, difficulties regarding the structure stress concept are pointed out and possible solution strategies are presented. To reduce uncertain influences from modelling, correction factors are specified based on the element approach, extrapolation rule and thickness. A series of static tests is carried out specifically for this purpose. The objective is to develop conclusive regulations for the hot-spot stress concept and evaluate it as an additional normatively anchored method for fatigue safety.

Original language	English
Title of host publication	IABSE Congress, Christchurch 2020
Subtitle of host publication	Resilient Technologies for Sustainable Infrastructure - Proceedings
Editors	Anthony Abu
Publisher	International Association for Bridge and Structural Engineering (IABSE)
Pages	1071-1078
Number of pages	8
ISBN (Electronic)	9783857481703
State	Published - 2020
Event	IABSE Congress Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Christchurch, New Zealand Duration: 3 Feb 2021 → 5 Feb 2021

Publication series

Name	IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings

Conference

Conference	IABSE Congress Christchurch 2020: Resilient Technologies for Sustainable Infrastructure
Country/Territory	New Zealand
City	Christchurch
Period	3/02/21 → 5/02/21

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Bridge construction
Effect of misalignment and of thickness
FE methods
Fatigue classes
Fatigue design
Hot-Spot Stress Method
S-N curves
Structure Stress Concept
Welded metal structures

Cite this

Rausch, N., & Mensinger, M. (2020). Fatigue design using the structure stress concept for welded metal structures. In A. Abu (Ed.), IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings (pp. 1071-1078). (IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings). International Association for Bridge and Structural Engineering (IABSE).

Rausch, Niclas ; Mensinger, Martin. / Fatigue design using the structure stress concept for welded metal structures. IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings. editor / Anthony Abu. International Association for Bridge and Structural Engineering (IABSE), 2020. pp. 1071-1078 (IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings).

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title = "Fatigue design using the structure stress concept for welded metal structures",

abstract = "Due to the progress in FE calculations, local stress increases of welded metal structures can be evaluated more precisely using the structure stress approach (hot-spot stress concept). Inadequate regulations, however, lead to significant uncertainties with this approach. There is a deficiency in instructions on modelling, stress determination and methods for dealing with misalignment and thickness influences. Therefore, difficulties regarding the structure stress concept are pointed out and possible solution strategies are presented. To reduce uncertain influences from modelling, correction factors are specified based on the element approach, extrapolation rule and thickness. A series of static tests is carried out specifically for this purpose. The objective is to develop conclusive regulations for the hot-spot stress concept and evaluate it as an additional normatively anchored method for fatigue safety.",

keywords = "Bridge construction, Effect of misalignment and of thickness, FE methods, Fatigue classes, Fatigue design, Hot-Spot Stress Method, S-N curves, Structure Stress Concept, Welded metal structures",

author = "Niclas Rausch and Martin Mensinger",

note = "Publisher Copyright: {\textcopyright} 2020 IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings. All rights reserved.; IABSE Congress Christchurch 2020: Resilient Technologies for Sustainable Infrastructure ; Conference date: 03-02-2021 Through 05-02-2021",

year = "2020",

language = "English",

series = "IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings",

publisher = "International Association for Bridge and Structural Engineering (IABSE)",

pages = "1071--1078",

editor = "Anthony Abu",

booktitle = "IABSE Congress, Christchurch 2020",

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Rausch, N & Mensinger, M 2020, Fatigue design using the structure stress concept for welded metal structures. in A Abu (ed.), IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings. IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings, International Association for Bridge and Structural Engineering (IABSE), pp. 1071-1078, IABSE Congress Christchurch 2020: Resilient Technologies for Sustainable Infrastructure, Christchurch, New Zealand, 3/02/21.

Fatigue design using the structure stress concept for welded metal structures. / Rausch, Niclas; Mensinger, Martin.
IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings. ed. / Anthony Abu. International Association for Bridge and Structural Engineering (IABSE), 2020. p. 1071-1078 (IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Fatigue design using the structure stress concept for welded metal structures

AU - Rausch, Niclas

AU - Mensinger, Martin

PY - 2020

Y1 - 2020

N2 - Due to the progress in FE calculations, local stress increases of welded metal structures can be evaluated more precisely using the structure stress approach (hot-spot stress concept). Inadequate regulations, however, lead to significant uncertainties with this approach. There is a deficiency in instructions on modelling, stress determination and methods for dealing with misalignment and thickness influences. Therefore, difficulties regarding the structure stress concept are pointed out and possible solution strategies are presented. To reduce uncertain influences from modelling, correction factors are specified based on the element approach, extrapolation rule and thickness. A series of static tests is carried out specifically for this purpose. The objective is to develop conclusive regulations for the hot-spot stress concept and evaluate it as an additional normatively anchored method for fatigue safety.

AB - Due to the progress in FE calculations, local stress increases of welded metal structures can be evaluated more precisely using the structure stress approach (hot-spot stress concept). Inadequate regulations, however, lead to significant uncertainties with this approach. There is a deficiency in instructions on modelling, stress determination and methods for dealing with misalignment and thickness influences. Therefore, difficulties regarding the structure stress concept are pointed out and possible solution strategies are presented. To reduce uncertain influences from modelling, correction factors are specified based on the element approach, extrapolation rule and thickness. A series of static tests is carried out specifically for this purpose. The objective is to develop conclusive regulations for the hot-spot stress concept and evaluate it as an additional normatively anchored method for fatigue safety.

KW - Bridge construction

KW - Effect of misalignment and of thickness

KW - FE methods

KW - Fatigue classes

KW - Fatigue design

KW - Hot-Spot Stress Method

KW - S-N curves

KW - Structure Stress Concept

KW - Welded metal structures

UR - https://www.scopus.com/pages/publications/85104755292

M3 - Conference contribution

AN - SCOPUS:85104755292

T3 - IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings

SP - 1071

EP - 1078

BT - IABSE Congress, Christchurch 2020

A2 - Abu, Anthony

PB - International Association for Bridge and Structural Engineering (IABSE)

T2 - IABSE Congress Christchurch 2020: Resilient Technologies for Sustainable Infrastructure

Y2 - 3 February 2021 through 5 February 2021

ER -

Rausch N, Mensinger M. Fatigue design using the structure stress concept for welded metal structures. In Abu A, editor, IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings. International Association for Bridge and Structural Engineering (IABSE). 2020. p. 1071-1078. (IABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings).

Fatigue design using the structure stress concept for welded metal structures

Abstract

Publication series

Conference

UN SDGs

Keywords

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