On the efficiency of machine learning for fatigue assessment of post-processed additively manufactured AlSi10Mg
Source abstract
Abstract
Laser powder bed fusion (LPBF) is receiving widespread attention for its capability to build components with complex geometries. Post-processing can address the adverse effects of various imperfections exhibited in LPBF parts in their as-built state, including inhomogeneous microstructure, tensile residual stresses and poor surface quality. In a recent experimental study, we investigated the influences of different post-processing techniques including heat treatment and shot peening as well as their combination on rotating bending fatigue behavior of V-notched LPBF AlSi10Mg samples. Herein, we further examined those samples regarding the specific parameters that directly influence fatigue performance with the aim to develop a deep learning based approach by means of artificial neural network. The effect of yield stress, ultimate tensile strength, elongation, porosity, microhardness, compressive residual stresses, and surface roughness and morphology were assessed and implemented in the model. Fatigue behavior of the samples was predicted and analyzed using sensitivity and parametric analyses. The obtained results reveal the high potential of deeply learned neural network for unlocking the role of post-processing on fatigue performance of LPBF AlSi10Mg samples. © 2022 Elsevier Ltd
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Additive Manufacturing and 3D Printing Technologies · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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