8th International Workshop on Direct Methods in Limit States of Structures and Materials

The workshop will take place in the Central Library’s Multimedia Amphitheater of the National Technical University of Athens on Wednesday the 11th of September 2024.

dm 2024

About

The series of the Direct Methods Workshops has become a tradition where the participants, in a friendly and cooperative atmosphere, present the state of the art of their research in the development and applications of the Direct Methods (DMs).

Following this tradition, researchers working in the field will meet in the historic city of Athens and discuss various and current issues in the field of DMs.

The Workshop will be carried out under the auspices of the National Technical University of Athens (NTUA). It will take place in the Central Library's Multimedia Amphitheater of NTUA on Wednesday the 11 th of September 2024.

As in the past, we intend to collect the papers presented and publish them, after peer-review, in a book. Possible alternative ways for better dissemination of our results will be discussed and agreed among us.

The organizers
Konstantinos Spiliopoulos
Dieter Weichert

Program

Wednesday 11/09/2024

09.15

Welcome

09.30

Michael Peigney
‘Shakedown theorems for shape memory alloys structures with functional fatigue - Application to nitinol stents’

10.10

Geng Chen
‘Application of direct methods in designing mechanical components in reusable spacecraft’

10.50

F. Liguori, A. Madeo, S. Marfia, G. Garcea, E. Sacco
‘A 2D Stabilization-Free Hybrid Virtual Element Method for Limit and Shakedown Analysis’

11.30

Coffee break

11.40

Sabine Boulvard, Jérémy Bleyer, Duc Toan Pham
‘Numerical implementation of the yield design for shear and torsion strength of RC beams in fire conditions’

12.10

D. Hussain, M. Harakeh, A. Oueslati, P. Gosselet, D. Kondo, G. de Saxcé
‘A non-incremental numerical method for non-associated elastoplastic problems using the SBEN principle and the bipotential’

12.50

Paolo Fuschi, Cristina Falcinelli, Aurora Angela Pisano
‘Collapse load prediction of human femur by Computed Tomography based limit analysis’

13.30

Lunch

14.20

Konstantinos Spiliopoulos, Valia Tsotoulidi
‘Direct estimation of the asymptotic cyclic stress for structures under creep and plasticity conditions’

15.00

Songhua Huang, Zhouyi Xiang, Fuyuan Liu, Min Chen, Lele Zhang, Geng Chen, Zhiyuan Liu, Eng Gee Lim
‘Shakedown Strength-Based Elastoplastic Topology Optimization and Its Application in Mechanical Exoskeleton Design’

15.40

Xuemei Lyu, Shengzhen Xin, Felix Weber, Geng Chen, Alexander Bezold, Christoph Broeckmann
‘Application of direct methods to fatigue performance: crystal plasticity enhanced direct cyclic algorithm and classic shakedown analysis’

16.20

Coffee break

16.30

D. Magisano, L. Leonetti, G. Garcea
‘Limit and Shakedown Analysis of Metal Beams and Frames Considering Tangential Stresses and Warping’

17.10

Nuziante Valoroso
Failure analysis based on regularized damage

Registration

dm 2024

The registration fee is 200 Euros payable to the following address, until the latest, Friday the 23rd of August 2024.

NATIONAL TECHNICAL UNIVERSITY OF ATHENS

IBAN: GR3201100800000008000516164

SWIFT: ETHNGRAA

Purpose: Registration to DM 2024

After the payment, please send, by email, to kvspilio@central.ntua.gr a copy of the payment.

Venue

  • The amphitheater has a capacity of 80 people and can be used for holding classes, conducting conferences, and academic lectures, with simultaneous video recording and/or live streaming, as well as teleconferencing.
  • The teleconferencing rooms have capacities of 20 (TC1) and 15 (TC2) people and are available for work meetings and presentations aimed at similarly sized audiences, in which participants can join through appropriate teleconferencing equipment and remote locations.

Central Library’s Multimedia Amphitheater of the National Technical University of Athens

dm 2024

Since 1999, multimedia rooms for distance education and teleconferencing have been operating at the Central Library building of the National Technical University of Athens (NTUA). These facilities feature high-fidelity digital video, student microphone coverage, automated instructor tracking cameras, and high-speed INTERNET network connectivity. They were developed within the framework of the EPEAEK projects, funded by the European Union and the Ministry of Education.

These rooms are comparable to similar facilities in the USA and were among the first installed in Europe. The excellent network infrastructure of NTUA allows their use in the educational process in many ways:

  • Real-time distance teaching via the Internet (H.323) or using stored electronic material.
  • Joint teaching sessions between NTUA professors and professors from other institutions in Greece and abroad through high-fidelity multimedia communication, using the advanced Educational - Research Internet (Internet) GRNET.
  • Use of the Internet’s vast knowledge resources during teaching.
  • Video recording of lessons on a video server or live streaming via the Internet.

Tele-education applications represent the future of educational applications in the Information Society, and their utilization is one of the main challenges faced by the Academic Community today. Tele-education includes any form of education that uses network resources or, more generally, the capabilities of computers.

  • The amphitheater has a capacity of 80 people and can be used for holding classes, conducting conferences, and academic lectures, with simultaneous video recording and/or live streaming, as well as teleconferencing.
  • The teleconferencing rooms have capacities of 20 (TC1) and 15 (TC2) people and are available for work meetings and presentations aimed at similarly sized audiences, in which participants can join through appropriate teleconferencing equipment and remote locations.

accommodation options

Athens

Athens is the capital and largest city of Greece. A major coastal urban area in the Mediterranean, Athens is also the capital of the Attica region and is the southernmost capital on the European mainland. With its urban area's population numbering over three million, it is the eighth largest urban area in the European Union. The Municipality of Athens (also City of Athens), which constitutes a small administrative unit of the entire urban area, had a population of 643,452 (2021) within its official limits, and a land area of 38.96 km2 (15.04 sq mi).

Athens is one of the world's oldest cities, with its recorded history spanning over 3,400 years, and its earliest human presence beginning somewhere between the 11th and 7th millennia BC. According to Greek mythology the city was named after Athena, the ancient Greek goddess of wisdom, but modern scholars generally agree that the goddess took her name after the city. Classical Athens was one of the most powerful city-states in ancient Greece. It was a centre for democracy, the arts, education and philosophy, and was highly influential throughout the European continent, particularly in Ancient Rome. For this reason, it is often regarded as the cradle of Western civilization and the birthplace of democracy in its own right independently from the rest of Greece.

In modern times, Athens is a huge cosmopolitan metropolis and central to economic,financial, industrial, maritime, political and cultural life in Greece. It is a Beta-status global city according to the Globalization and World Cities Research Network, and is one of the biggest economic centers in Southeastern Europe. It also has a large financial sector, and its port Piraeus is both the 2nd busiest passenger port in Europe, and the 13th largest container port in the world. The Athens metropolitan area or Greater Athens extends beyond its administrative municipal city limits as wellas its urban agglomeration, with a population of 3,638,281 (2021) over an area of 2,928.717 km2 (1,131 sq mi).

The heritage of the Classical Era is still evident in the city, represented by ancient monuments, and works of art, the most famous of all being the Parthenon, considered a key landmark of early Western culture. The city also retains Roman, Byzantine and a smaller number of Ottoman monuments, while its historical urban core features elements of continuity through its millennia of history. Athens is home to two UNESCO World Heritage Sites, the Acropolis of Athens and the medieval Daphni Monastery. Athens is also home to several museums and cultural institutions, such as the National Archeological Museum, featuring the world's largestcollection of ancient Greek antiquities, the Acropolis Museum, the Museum of Cycladic Art, the Benaki Museum, and the Byzantine and Christian Museum. Athens was the host city of the first modern-day Olympic Games in 1896, and 108 years later it hosted the 2004 Summer Olympics, making it one of five cities to have hostedthe Summer Olympics on multiple occasions.

Travelling Around Athens

Information concerning public transport may be found in: https://www.oasa.gr/en/visit-athens/

Contact

If you need any further information you may contact:
Mrs. Eleana Boni
eboni@central.ntua.gr
2107721656

Prof. Konstantinos Spiliopoulos
kvspilio@central.ntua.gr
2107721603

Address
Institute of Structural Analysis & Antiseismic Research
Telephone
2107721656, 2107721603
dm 2024