Multicomponent alloys design and mechanical response: From high entropy alloys to complex concentrated alloys

M Cabrera, Y Oropesa, JP Sanhueza… - Materials Science and …, 2024 - Elsevier
Technological advancements have consistently been accompanied by significant progress
in materials science, with alloys serving as fundamental elements in engineering design …

[HTML][HTML] Characterization approaches affect asymmetric load predictions of hexagonal close-packed alloy

V Tuninetti, A Oñate, M Valenzuela… - Journal of Materials …, 2023 - Elsevier
The anisotropic plasticity constants of the CPB06 criterion for Ti64, previously identified with
experiments performed in all three dimensions, are applied here to evaluate the effect of the …

Accurate numerical prediction of ductile fracture and micromechanical damage evolution for Ti6Al4V alloy

C Rojas-Ulloa, V Tuninetti, H Sepúlveda… - Computational …, 2024 - Springer
Abstract A CPB06-based Stewart-Cazacu micromechanical damage model is implemented
and validated for Ti6Al4V material. It provides accurate numerical predictions in terms of …

Optimizing laser power of directed energy deposition process for homogeneous AISI M4 steel microstructure

RT Jardin, V Tuninetti, JT Tchuindjang… - Optics & Laser …, 2023 - Elsevier
A finite element model of directed energy deposition (DED) process predicts the thermal
history during the manufacturing of high speed steel cuboid samples. The simulation result …

Identification of a soft matrix-hard inclusion material by indentation

HS Tran, C Bouffioux, O Dedry, C Rojas-Ulloa… - International Journal of …, 2022 - Elsevier
A new procedure for identifying the mechanical behavior of individual phases within a bi-
material (matrix-particles) is presented. The case of AlSi10Mg (large globularized Si-rich …

Assessing Feed-Forward Backpropagation Artificial Neural Networks for Strain-Rate-Sensitive Mechanical Modeling

V Tuninetti, D Forcael, M Valenzuela, A Martínez… - Materials, 2024 - mdpi.com
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 …

CEBs with GRC: Fabrication, characterization, modeling, and correlation with microstructural fracture features

M Valenzuela, J Leiva, A Salas, G Ciudad… - Materials Today …, 2023 - Elsevier
In this study, earth blocks (EB) and compressed earth blocks (CEB) are fabricated and
investigated along with the development of a mathematical model of compressive and …

A Combined Experimental and Numerical Calibration Approach for Modeling the Performance of Aerospace-Grade Titanium Alloy Products

V Tuninetti, H Sepúlveda, C Beecher, C Rojas-Ulloa… - Aerospace, 2024 - mdpi.com
Finite element modeling for designing and optimizing lightweight titanium aerospace
components requires advanced simulation tools with adequate material modeling. In this …

Evaluation of the orthotropic behavior in an auxetic structure based on a novel design parameter of a square cell with re-entrant struts

R Valle, G Pincheira, V Tuninetti, C Garrido, C Treviño… - Polymers, 2022 - mdpi.com
In this research, a three-dimensional auxetic configuration based on a known re-entrant cell
is proposed. The 3D auxetic cell is configured from a new design parameter that produces …

Identification and validation of an extended Stewart-Cazacu micromechanics damage model applied to Ti–6Al–4V specimens exhibiting positive stress triaxialities

C Rojas-Ulloa, M Valenzuela… - Proceedings of the …, 2021 - journals.sagepub.com
In this research, the Stewart-Cazacu micromechanics coupled damage model is extended
and validated adding nucleation and coalescence models as new damage mechanisms …