Christophe TESSIER on LinkedIn: D’après RISE: « The importance of the cooling phase when testing the fire… (2024)

The conference season is at full speed and this week, we are at the International Conference on Experimental Mechanics (ICEM) 2023, in Porto, Portugal 💥🧑🎓🇵🇹. At ICEM 2023, the largest thematic symposia is on on wood mechanics and timber engineering 🌳. There are 23 contributions on topics such as:🔩🔗 Connections, 🌳🪨 Timber-concrete composites,🛠️🤔 Product development, and🔬🪵 Material modeling. 👉 From ETH Zürich - Chair of Timber Structures, Alex Cao is presenting a multi-scale hysteretic model of laterally loaded timber connections with dowel-type fasteners, co-authored with Pedro Palma and Frangi Andrea 🔩🌳. A big thanks to the organizers of the thematic symposia and the conference organizers 🙏👏!Thematic symposia: Michael Schweigler, Michael Dorn, Thomas K Bader, Carmen SandhaasConference organizers: J. F. Silva Gomes, Carlos C. Antonio, Jorge P. GomesConference website: https://lnkd.in/dpqtkVu2Proceedings: https://lnkd.in/eTsVDNYbLinnaeus University Karlsruhe Institute of Technology (KIT) Faculdade de Engenharia da Universidade do Porto #technology #engineering #development #university #timberengineering #woodmechanics

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Incredible and important large-scale empirical fire tests!!!#masstimber #firesafety #fireengineering #structuralengineering #holzbau #brandschutz #bauingenieurwesen

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Submit your abstract for the IASS2024

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We encourage you to submit an abstract (https://lnkd.in/d3yxMgW6) for a presentation about one of the main conference topics:- Structural health monitoring;- Performance and damage assessment;- Damage control;- Structural strengthening and repair;- Durability issues as related to harsh environments;- Shape memory alloys in civil structures;- Practical applications and case studies;- Visionary concepts.We have also accepted16 mini-symposium proposals (https://lnkd.in/dsBvc3Xr), which you may consider for your possible contribution.Finally, we remind you that accepted full papers will be published in Open Access (CC-BY-NC-ND license) on the journalProcedia Structural Integrity(Elsevier) and, thus, indexed both inScopusandWeb of Science.#engineering #research #conference #conference2024 #structuralengineering #structuralhealthmonitoring #assessment #rehabilitation

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It is a great pleasure for me to announce one more journal paper of my research group. The paper is entitled "Protection of Buried Pipelines from High-Speed Train Vibrations with Expanded Polystyrene Geofoam". I would like to thank my colleagues from Technical University of Crete Dr Alexandros Lyratzakis and Prof. Yiannis Tsompanakis for the excellent collaboration. The abstract of the paper is the follοwing:High-speed railway (HSR) lines commonly operate over hundreds of kilometers, crossing several other large-scale infrastructures, such as highways, tunnels, bridges, and pipelines. This fact makes adjacent infrastructure more vulnerable to high-speed train (HST)-induced vibrations; thus, their potential distress should be carefully examined. The current study aims to assess the level of traffic-induced vibrations on the surface of buried pipelines vertically crossing under an HSR line. Firstly, the necessity to reduce high vibration levels is highlighted, utilizing a three-dimensional (3D) finite element model in conjunction with the moving load approach. Subsequently, an efficient mitigation measure is proposed to minimize these vibrations. For this purpose, a low-weight, high-performance geosynthetic fill material, i.e., expanded polystyrene (EPS) geofoam blocks, has been implemented between the HSR line and the buried pipeline to minimize the impact of vibrations. In this manner, HST-induced vibrations are reflected on EPS blocks, preventing them from reaching the pipeline surface. Based on this detailed parametric study, useful conclusions are drawn regarding the mechanical properties and geometry of the EPS protection layer.

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📢New paper out, led by Lingzhen Li (Empa and Chair of Structural Mechanics and Monitoring at ETH Zurich) in collaboration with Sizhe Wang (Empa and Nanyang Technological University Singapore), Eleni Chatzi (SMM Chair at ETH Zürich), Masoud Motavalli (Empa), and Elyas Ghafoori (Empa and Leibniz Universität Hannover)!✨ This work presents an analytical modeling approach to predicting prestressing effects in steel, glass, and reinforced concrete (RC) members strengthened by bonded/near surface mounted Fe-SMA strips/rebars. The analyzed prestress levels, in terms of the strains and deflections in parent structures, closely approximate the experimental results reported in existing literature.Our parametric study and sensitivity analysis indicate that increasing the activation temperature (within a certain range) and widening the Fe-SMA strips could most effectively enhance the prestressing effect. We further propose a design strategy, in line with Eurocode 0, for the bonded/embedded Fe-SMA strengthening system. The employed analysis methodology and resulting analytical models can support national/regional standards in the design of prestressed bonded strengthening for existing structures.📖 Read more in this latest publication in Volume 303 of Engineering Structureshttps://lnkd.in/d2ep_ujv🎓 This work forms a part of the PhD thesis of Dr. Lingzhen Li onBond behavior and debonding failure in Fe-SMA strengthened steel members (full text available in ETH Research Collection).https://lnkd.in/evUbU8jh

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📢 Exciting News: Our latest open access research paper on "Experimental Studies on the Progressive Collapse of Building Structures: A Review and Discussion on Dynamic Column Removal Techniques" has been published in the journal "Structures" by Elsevier!🔗 You can access the full paper here: [https://lnkd.in/d6saSj4G]🙏 I would like to thank Foad Kiakojouri, Jose Adam, and Valerio De Biagi for their valuable contributions to this research.📚 We invite you to read, share, and engage in discussions related to this important area of study. Your thoughts and feedback are greatly appreciated!#Research #StructuralEngineering #ProgressiveCollapse #BuildingDesign #OpenAccess #Elsevier

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Can we control were in the wood structure the water is by wood modification? Yes, we can! To acheive this, we needed to combine precise conditioning at high moisture states with other techniques to determine the amount and location of water. Although fungal degradation occurs primarily at high moisture states, research studies on wood-water interactions are generally performed in the hygroscopic range and/or at water saturated state. In this study, we investigated wood-water interactions in the range close to saturation were fungal degradation actually can occur. This study was possible because of a unique custom built pressure plate lab that I have set up at Building Materials, Lund University and this paper was the second paper were this conditioning system was used in large scale.https://lnkd.in/dGnBREa6Collaboration is key in research studies like this and I am happy and grateful to have such great co-authors and colleagues as Emil Engelund Thybring, Jonas Engqvist, and Ramunas Digaitis.Lunds tekniska högskola, Lunds universitet, Department of Geosciences and Natural Resource Management, University of Copenhagen, Formas, ett forskningsråd för hållbar utveckling, Crafoordska stiftelsen, Nordic Forest Research (SNS), Interreg Öresund-Kattegat-Skagerrak

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The special issue of the 17th Asia-Pacific Conference on Fracture and Strength and the 13th Conference on Structural Integrity and Failure (APCFS 2022 & SIF 2022) has now been published, marking a significant milestone in the dissemination of scientific knowledge. I am overjoyed to announce the inclusion of our paper entitled "Vibrations of Axially Travelling CNT Reinforced Beams with Clamped-Clamped Boundary Condition and an Elastic Support" within this esteemed collection. This accomplishment serves as a testament to the dedication and perseverance exhibited throughout my Honours year. I would like to express my profound admiration and heartfelt appreciation to all individuals who contributed to the success of our research and project. I consider myself immensely fortunate that our team has made a modest yet meaningful contribution to the advancement of scientific understanding in this area. It is my sincere hope that the collective work of our team will pave the way for further exploration and foster future breakthroughs in this field.For those who are interested in delving into the intricacies of our study, I invite you to explore our published paper within the aforementioned special issue.https://lnkd.in/gvkcMyZ9#PublicationAnnouncement #vibrationanalysis #nanotechnology #Research #Science #Engineering #civilengineer #mechanicalengineering

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"Celebrating a milestone moment – my first SCI/SCIE indexed (2nd Scopus) article is now published! 🎉📚 "A Comprehensive Review on the Factors Affecting Bond Strength in Concrete" published in Buildings Journal with an Impact Factor of 3.324. Gratitude for the incredible journey and collaborative efforts that went into this achievement. Excited to contribute to the world of Structural Engineering. Dive into the research and let's connect for more impactful collaborations!DOI: 10.3390/buildings13030577 #latepost #scipublication #scopusindexed #structuralengineering #reviewpaper #researchimpact

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