The CWUR, based in Jeddah, Saudi Arabia, claims to be "the only global university ranking that measures the quality of education and training of students as well as the prestige of the faculty members and the quality of their research without relying on surveys and university data submissions".
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.
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.
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.
Olga Kokshagina’s PhD thesis aims to demonstrate that situations of high ambidexterity, uncertainty when neither technologies, nor markets are known can be “manageable”.
Driven on the extensive research at one of the biggest semiconductor manufacturer - STMicroelectronics, this thesis reveals a winning solution for unknown management – design of generic technologies capable to address the existing and create new unanticipated market applications. Olga’s thesis proposes a collective action model for the design of generic technologies.
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