Research news at MINES ParisTech
MINES ParisTech has been recognized in the prestigious Times Higher Education World University Rankings, joining the Top 200 for the first time.
MINES ParisTech enters Top 200!
Good news for MINES ParisTech, the Engineering school has shot up the rankings from 226-250 to 193.
Her score, this year, is remarkable as the French universities tend to lose ground.
Read moreEarth sciences and environment
Towards a new constitutive law for the bolt-grout interface
Theoretical and experimental study of fully grouted rockbolts and cablebolts under axial loads
In the thesis of Laura Blanco Martin, the bolt-grout interface of fully grouted rockbolts has been studied with the aim of determining its constitutive law. For this purpose, axial loadings acting on the bar have been considered and theoretical and experimental research conducted. The theoretical investigations link the response of the surrounding materials (bolt, grout and ground) to that of the interface, which is not directly accessible.
Pull-out tests have been carried out to obtain experimental information. Combining the theoretical developments with the test results, the interface variables can be determined. This procedure proves that, in order to study the bolt-grout interface accurately, the behaviour of the surrounding materials should be well known.From the available data, a semi-empirical formulation of the interface response is proposed. The tangential behaviour suggests that friction is not the only component to the shear stress. The normal response, which is more difficult to ascertain, depends on the bolt profile.
Read moreEnergy and process engineering
Assisting low energy consumption building design
To gain professional experience with MINES ParisTech
Maxime Trocmé's PhD thesis took place within the framework of a partnership between the Center for Energy and processes of MINES ParisTech and VINCI (World largest construction company). The work was full time conducted in the R&D department of VINCI Construction France.
After a motivating six-month internship at the CEP and engineering school graduation, Maxime Trocmé was desirous to acquire more competence on building eco-design. This doctoral thesis was a way to fulfil this wish in a theoretical (building models) and practical way (real building studies). Since it took place within the framework of a CIFRE convention, it was also an opportunity to gain professional experience.
Mechanical and Materials engineering
Thermo-mechanical modelling of a screwing-threading process
Local approach to fracture on a semi-crystalline thermoplastic : the polyoxymethylene
The increasing use of polymers in engineering structures is promoted by the need to reduce both cycle/cost production and the weight of these structures. PSA Peugeot Citroën initiated research works to design the assembling process using metallic screwing/threading on polymers. It consists in directly taping the polymeric piece during the mounting operation by using self-threading metallic screw.
The final objective of the work of Jonathan Ricard deals with the ability to numerically (finite element) model the screwing/threading operation. This numerical tool offers the possibility to perform a large campaign of study highlighting the sensitivity of the assembly procedure to a significant range of parameters.
Mathematics and systems
Computer science, more specifically High Performance Computing (HPC)
Automatic Resource-Constrained Static Task Parallelization - A Generic Approach
Dounia Khaldi's PhD thesis intends to show how to efficiently exploit the parallelism present in scientific computer applications in order to enjoy the performance benefits that multiprocessors can provide, using a new automatic task parallelization methodology for compilers. The key characteristics of this research work are resource constraints and static scheduling.
Read moreEconomics, management, society
When Human computation abilities are applied to automated trading
Using the human brain as CPU, a new frontier?
The aim of the thesis of Arnaud Vincent was to apply “human computation” to algorithmic trading to incorporate input from a crowd of players in the algorithms. Two ideas were explored in this thesis; firstly, data from Twitter was incorporated into trading strategies in the form of alerts, then an open trading game called Krabott was set up to capitalize on the intuition and workpower of hundreds of players.
This work was carried out in Centre for industrial economics, MINES ParisTech - CERNA, under Margaret Armstrong’s supervision.
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