A5007199573- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Welding Techniques and Residual Stresses
- Fatigue and fracture mechanics
- Manufacturing Process and Optimization
- Railway Engineering and Dynamics
- Aluminum Alloy Microstructure Properties
- Structural Health Monitoring Techniques
- Material Properties and Failure Mechanisms
- Microstructure and Mechanical Properties of Steels
- Structural Load-Bearing Analysis
- Probabilistic and Robust Engineering Design
- Advancements in Materials Engineering
- Titanium Alloys Microstructure and Properties
- Advanced X-ray and CT Imaging
Politecnico di Milano
2016-2022
Being able to predict the fatigue resistance of parts produced by additive manufacturing (AM) is a very actual and frequent open issue. The qualification AM structural needs costly time consuming series tests, on both samples full-scale parts. A proper control process allows obtaining comparable even better than standard manufacturing. Despite this, experimental results often show large scatter, mostly due presence defects. In this framework, work summarizes research activity aiming at...
In this presentation, we will summarize the main results of a research activity aiming at predicting size defect origin fatigue failure in large spheroidal cast iron presses. The endurance limit material is largely influenced by ineluctable presence defects related to casting process, such as voids and degenerated graphite. aim was determine reliable robust way control production reject parts which do not meet company's quality requirements. Defect measurements have been performed with 2D 3D...
One of the most frequent and dangerous failure modes in continuous welded rails is fatigue crack propagation terminated by brittle fracture. Due to brittleness weld material scatter its mechanical properties, a probabilistic approach necessary. The paper deals with surface cracks at foot base aluminothermic rails, developing methodology for determining day prospective probability. model used based on characterization, simulation growth day-by-day probability calculation using Monte Carlo...