On 23rd November, 2022, were delivered the Special Doctoral Awards 2022, corresponding to the 2019/2020 Academic year. CIMNE researchers Alejandro Cornejo and David Roca have been awarded in this edition of this recognition promoted by the Doctorate School of the Technical University of Catalonia · BarcelonaTech.
Special Doctoral Awards ceremony: Alejandro Cornejo receiving his award from Daniel Crespo, rector of the UPC, and Josep Maria Font, Director of the Doctorate School
We invitate to know more about this two awarded thesis below:
- Author: Cornejo Velázquez, Alejandro
- Directors: Oñate, Eugenio; Zárate, Francisco
- Abstract: It is well known that in civil engineering structures are designed so that they remain, whenever possible, in an elastic regime and with their mechanical properties intact. The truth is that in reality there are uncertainties either in the execution of the work (geometric errors or material quality) or during its subsequent use (loads not contemplated or its value has been estimated incorrectly) that can lead to the collapse of the structure. This is why the study of the failure of structures is inherently interesting and, once is known, its design can be improved to be the less catastrophic as possible or to dissipate the maximum energy before collapsing. Another area of application of fracture mechanics is that of processes of which interest liesin the breakage or cracking of a medium. Within the mining engineering we can enumerate several processes of this nature, namely: hydraulic fracture processes or fracking, blasting for tunnels, explosion of slopes in open pit mines, among others.
- URL: https://upcommons.upc.edu/handle/2117/335428
- Related news: Check out further info about Alejandro Cornejo's thesis defense
Numerical Tools for Computational Design of Acoustic Metamaterials
- Author: Roca, David
- Directors: Cante, Juan Carlos; Lloberas, Oriol
- Abstract: The notion of metamaterials as artificially engineered structures designed to obtain specific material properties, typically unachievable in naturally occurring materials, has captured the attention of the scientific and industrial communities. Among the broad range of applications for such kind of materials, in the field of acoustics, the possibility of creating materials capable of efficiently attenuating noise in target frequency ranges is of utmost importance for a lot of industrial areas. In this context, the so-called locally resonant acoustic metamaterials (LRAMs) can play an important role, as their internal topology can be designed to exhibit huge levels of attenuation in specific frequency regions by taking advantage of internal resonance modes. With a proper, optimized topological design, LRAMs can be used, for instance, to build lightweight and thin noise insulation panels that operate in a low-frequency regime, where standard solutions for effectively attenuating the noise sources require dense and thick materials.
- URL: https://upcommons.upc.edu/bitstream/handle/2117/330387/TDRC1de1.pdf
- Video: Check video on CIMNE Youtube Channel
Special Doctoral Awards ceremony: Awardeees photo group
