Alexis Salas

Mr. Alexis Salas

Universidad de Concepción, Chillán, Biobío, Chile

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 February 2024 in Renewable and Sustainable Energy Reviews
Verified
Journal Article
Open access
MVMarian Valenzuela
Marian Valenzuela
GCGustavo A. Ciudad
Gustavo A. Ciudad
Juan Pablo Cárdenas-RamírezJuan Pablo Cárdenas-Ramírez
Juan Pablo Cárdenas-Ramírez
CMCarlos Medina
Carlos Medina
ASAlexis Salas
Alexis Salas
VTVictor Tuninetti
Victor Tuninetti

1 June 2021 in Materials Today Chemistry
Verified
Journal Article
Closed access
MNMARIA ELIZABETH BERRIO NIÑO
MARIA ELIZABETH BERRIO NIÑO
AOAngelo Oñate
Angelo Oñate
ASAlexis Salas
Alexis Salas
KFKatherina Katherina Fernandez
Katherina Katherina Fernandez
MMM.F. Meléndrez
M.F. Meléndrez

19 August 2024 in Nanomaterials
Verified
Journal Article
Open access
PDF file
CQCamila Quezada
Camila Quezada
SSShiva Samhitha Saireddy
Shiva Samhitha Saireddy
ASAlexis Salas
Alexis Salas
Adrian Alejandro GesAdrian Alejandro Ges
Adrian Alejandro Ges
Luis BarrazaLuis Barraza
Luis Barraza
MMManuel Francisco Melendrez
Manuel Francisco Melendrez
Biomarkers play a pivotal role in the screening, diagnosis, prevention, and post-treatment follow-up of various malignant tumors. In certain instances, identifying these markers necessitates prior treatment due to the complex nature of the tumor microenvironment. Consequently, advancing techniques that exhibit selectivity, specificity, and enable streamlined analysis hold significant importance. Molecularly imprinted polymers (MIPs) are considered synthetic antibodies because they possess the property of molecular recognition with high selectivity and sensitivity. In recent years, there has been a notable surge in the investigation of these materials, primarily driven by their remarkable adaptability in terms of tailoring them for specific target molecules and integrating them into diverse analytical technologies. This review presents a comprehensive analysis of molecular imprinting techniques, highlighting their application in developing sensors and analytical methods for cancer detection, diagnosis, and monitoring. Therefore, MIPs offer great potential in oncology and show promise for improving the accuracy of cancer screening and diagnosis procedures.

8 January 2024 in Materials
Verified
Journal Article
Open access
PDF file
VTVictor Tuninetti
Victor Tuninetti
DFDiego Forcael
Diego Forcael
MVMarian Valenzuela
Marian Valenzuela
AMAlex Martínez
Alex Martínez
AÁAndrés Ávila
Andrés Ávila
LDLaurent Duchêne
Laurent Duchêne
The manufacturing processes and design of metal and alloy products can be performed over a wide range of strain rates and temperatures. To design and optimize these processes using computational mechanics tools, the selection and calibration of the constitutive models is critical. In the case of hazardous and explosive impact loads, it is not always possible to test material properties. For this purpose, this paper assesses the efficiency and the accuracy of different architectures of ANNs for the identification of the Johnson–Cook material model parameters. The implemented computational tool of an ANN-based parameter identification strategy provides adequate results in a range of strain rates required for general manufacturing and product design applications. Four ANN architectures are studied to find the most suitable configuration for a reduced amount of experimental data, particularly for cases where high-impact testing is constrained. The different ANN structures are evaluated based on the model’s predictive capability, revealing that the perceptron-based network of 66 inputs and one hidden layer of 30 neurons provides the highest prediction accuracy of the effective flow stress–strain behavior of Ti64 alloy and three virtual materials.

28 August 2025 in Polymers
Verified
Journal Article
Open access
PDF file
FNFrancisco Andrés Lagos Novoa
Francisco Andrés Lagos Novoa
BMBrahim Menacer
Brahim Menacer
ASAlexis Salas
Alexis Salas
SNSunny Narayan
Sunny Narayan
Carlos andres MedinaCarlos andres Medina
Carlos andres Medina
VTVictor Tuninetti
Victor Tuninetti
Achieving the full potential of wind energy in the global renewable transition depends critically on enhancing the performance and reliability of polymer composite components. This review synthesizes recent advances from 2022 to 2025, including the development of next-generation hybrid composites and the application of high-fidelity computational methods—finite element analysis (FEA), computational fluid dynamics (CFD), and fluid–structure interaction (FSI)—to optimize structural integrity and aerodynamic performance. It also explores the transformative role of artificial intelligence (AI) in structural health monitoring (SHM) and the integration of Internet of Things (IoT) systems, which are becoming essential for predictive maintenance and lifecycle management. Special focus is given to harsh offshore environments, where polymer composites must withstand extreme wind and wave conditions. This review further addresses the growing importance of circular economy strategies for managing end-of-life composite blades. While innovations such as the geometric redesign of floating platforms and the aerodynamic refinement of blade components have yielded substantial gains—achieving up to a 30% mass reduction in PLA prototypes—more conservative optimizations of internal geometry configurations in GFRP blades provide only around 7% mass reduction. Nevertheless, persistent challenges related to polymer composite degradation and fatigue under severe weather conditions are driving the adoption of real-time hybrid predictive models. A bibliometric analysis of over 1000 publications confirms more than 25 percent annual growth in research across these interconnected areas. This review serves as a comprehensive reference for engineers and researchers, identifying three strategic frontiers that will shape the future of wind turbine blade technology: advanced composite materials, integrated computational modeling, and scalable recycling solutions.

1 January 2017 in Journal of Nanomaterials
Verified
Journal Article
Open access
PDF file
Carlos andres MedinaCarlos andres Medina
Carlos andres Medina
Eduardo FernandezEduardo Fernandez
Eduardo Fernandez
ASAlexis Salas
Alexis Salas
FNFernando Naya
Fernando Naya
JMJon Molina-Aldereguía
Jon Molina-Aldereguía
Paulo FloresPaulo Flores
Paulo Flores
The mechanical properties of the matrix and the fiber/matrix interface have a relevant influence over the mechanical properties of a composite. In this work, a glass fiber-reinforced composite is manufactured using a carbon nanotubes (CNTs) doped epoxy matrix. The influence of the CNTs on the material mechanical behavior is evaluated on the resin, on the fiber/matrix interface, and on the composite. On resin, the incorporation of CNTs increased the hardness by 6% and decreased the fracture toughness by 17%. On the fiber/matrix interface, the interfacial shear strength (IFSS) increased by 22% for the nanoengineered composite (nFRC). The influence of the CNTs on the composite behavior was evaluated by through-thickness compression, short beam flexural, and intraply fracture tests. The compressive strength increased by 6% for the nFRC, attributed to the rise of the matrix hardness and the fiber/matrix IFSS. In contrast, the interlaminar shear strength (ILSS) obtained from the short beam tests was reduced by 8% for the nFRC; this is attributed to the detriment of the matrix fracture toughness. The intraply fracture test showed no significant influence of the CNTs on the fracture energy; however, the failure mode changed from brittle to ductile in the presence of the CNTs.