Browsing by Author "5f63b0b902373f1af57f9faa6abeb55f"
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A multiscale material model for metallic powder compaction during hot isostatic pressing
Elguezabal Lazcano, Borja (Elsevier, 2023)The prediction of the distortions during Near-Net-Shape Hot Isostatic Pressing (NNS-HIP) is an intrinsic multiscale problem where the local interactions among particles determine the macroscopic distortions taking place ... -
Optimization of the semi-hexagonal geometry of a composite crush structure by finite element analysis
Esnaola, Aritz; Aurrekoetxea, Jon; Gallego, Ivan; Ulacia, Ibai; Elguezabal Lazcano, Borja (Elsevier, 2016)In the present paper a numerical model for predicting the crushing behaviour of semi-hexagonal E-glass/polyester composite structures has been developed. Qualitative and quantitative analysis have shown that the results ... -
Study of Astroloy powder compaction at high temperature under hydrostatic load using finite elements
Elguezabal Lazcano, Borja (Elsevier, 2021)The results of existing constitutive models describing the behaviour of metal powder during compaction processes are very different. This reveals the high sensitivity of the mechanical behaviour of porous materials to the ... -
Study of powder densification under hydrostatic loads at high temperatures using finite element method
Elguezabal Lazcano, Borja (Elsevier, 2020)Many different constitutive models that describe the behaviour of metal powder during hot isostatic processes are found in literature. A quantitative comparison of these material laws shows a huge discrepancy among the ... -
Thermal Mass Effect on the Solution Cooling Rate and on HIPped Astroloy Component Properties
Elguezabal Lazcano, Borja (MDPI, 2022)Astroloy is a Ni-based superalloy with high-volume fraction of γ′, which gives high temperature properties but reduces its forgeability. Therefore, powder metallurgy manufacturing processes such as Near Net Shape HIPping ...