Hassan al-Karawi

Doctoral Student at Structural Engineering

Hassan is a doctoral student at the division of structural engineering, in the research group lightweight structures. Hassan’s main research interest is fatigue of welded steel structures and maintenance methods.

Many bridges in the world have reached, or exceeded, their design fatigue life. It is a challenge for society to wisely manage this huge asset of old bridges. Replacing bridges because their theoretical life span is reached is not a sustainable solution, neither from societal nor economical point of view.

Source: chalmers.se
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Showing 17 publications

2022

High-cycle variable amplitude fatigue experiments and design framework for bridge welds with high-frequency mechanical impact treatment

Poja Shams Hakimi, Hassan al-Karawi, Mohammad al-Emrani
Steel Construction Design and Research
Journal article
2022

Mean Stress Effect in High-Frequency Mechanical Impact (HFMI)-Treated Steel Road Bridges

Hassan al-Karawi, Poja Shams Hakimi, Mohammad al-Emrani
Buildings. Vol. 12 (5)
Journal article
2022

Literature review on crack retrofitting in steel by Tungsten Inert Gas remelting

Hassan al-Karawi
Ships and Offshore Structures
Journal article
2021

Fatigue life extension of existing welded structures via high frequency mechanical impact (HFMI) treatment

Hassan al-Karawi, Rüdiger Ulrich Franz von Bock und Polach, Mohammad al-Emrani
Engineering Structures. Vol. 239
Journal article
2021

The efficiency of HFMI treatment and TIG remelting for extending the fatigue life of existing welded structures

Hassan al-Karawi, Mohammad al-Emrani
Steel Construction. Vol. 14 (2), p. 95-106
Journal article
2021

Crack detection via strain measurements in fatigue testing

Hassan al-Karawi, Rüdiger Ulrich Franz von Bock und Polach, Mohammad al-Emrani
Strain. Vol. 57 (4)
Journal article
2021

Crack behaviour after High Frequency Mechanical Impact treatment in welded S355 structural steel

Hassan al-Karawi, Mohammad al-Emrani, Joakim Hedegård
Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations Proceedings of the Tenth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020), June 28-July 2, 2020, Sapporo, Japan, p. 3113-3119
Paper in proceeding
2021

Fatigue crack repair by TIG-remelting

Hassan al-Karawi, Asma Manai, Mohammad al-Emrani et al
Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations Proceedings of the Tenth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020), June 28-July 2, 2020, Sapporo, Japan, p. 3120-3127
Paper in proceeding
2021

Fatigue life estimation of welded structures enhanced by combined thermo-mechanical treatment methods

Hassan al-Karawi
Journal of Constructional Steel Research. Vol. 187
Journal article
2021

Fatigue life estimation of treated welded attachments via High Frequency Mechanical Impact treatment (HFMI-treatment)

Hassan al-Karawi, Mohammad al-Emrani, Reza Haghani Dogaheh
Modern Trends in Research on Steel, Aluminium and Composite Structures PROCEEDINGS OF THE XIV INTERNATIONAL CONFERENCE ON METAL STRUCTURES (ICMS2021), POZNAŃ, POLAND, 16-18 JUNE 2021
Book chapter
2021

Assessment of in-service stresses in steel bridges for high-frequency mechanical impact applications

Poja Shams Hakimi, Fredrik Carlsson, Mohammad al-Emrani et al
Engineering Structures. Vol. 241
Journal article
2020

Fatigue crack repair in welded structures via tungsten inert gas remelting and high frequency mechanical impact

Hassan al-Karawi, R. U.Franz von Bock und Polach, Mohammad al-Emrani
Journal of Constructional Steel Research. Vol. 172
Journal article

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Showing 2 research projects

2021–2024

LifeExt-2-Implementation

Mohammad al-Emrani Structural Engineering
Hassan al-Karawi Structural Engineering
VINNOVA

2017–2019

LifeExt - Livslängdsförlängning för befintliga stålbroar

Mohammad Al-Emrani Structural Engineering
Asma Manai Structural Engineering
Hassan al-Karawi Structural Engineering
Swedish Transport Administration
VINNOVA

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