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Machine and Vehicle Design: Master Thesis presentation (June 2014) POLITECNICO DI MILANO, ITALY DIPARTIMENTO DI MECCANICA
Politecnico di Milano …since 1863…
Machine and Vehicle Design: Master Thesis presentation
TITLE: Numerical simulation of hydrogen embrittlement RESEARCH ACTIVITIES: 1. Numerical simulation of hydrogen embrittlement in high strength steels 2. Implementation of FE model in Abaqus, by self-developed sub-routines 3. Stress and mass diffusion static analyses to simulate fracture toughness static tests, validated
by comparison with experimental tests
METHODOLOGY: Mainly numerical (FEM) DURATION: 9-12 months CONTACTS: [email protected] [email protected] POSSIBLE COLLABORATIONS: ENI Tenaris Dalmine
Hydrogen embrittlement
F
VLL
Crack tip
Cohesive elements layer to simulate crack propagation
Machine and Vehicle Design: Master Thesis presentation
TITLE: Impact analysis behaviour on hybrid panels RESEARCH ACTIVITIES: 1. Experimental impact tests on hybrid panels (plastic + metal sheets) 2. Evaluation of the residual mechanical characteristics 3. Quantification on the induced damage by experimental mechanical and thermographic analyses, for different combination of thickness, materials and impact energies
METHODOLOGY: Experimental DURATION: 9-12 months CONTACTS: [email protected] [email protected] POSSIBLE COLLABORATIONS: Institute of Metallurgy, University of Clausthal (Germany)
Hybrid composites
Machine and Vehicle Design: Master Thesis presentation
TITLE: Application of experimental thermography on composite materials RESEARCH ACTIVITIES: 1. Experimental application of non-destructive thermographic techniques to quantify static and fatigue-induced damage 2. Possible application to a wide range of composites, as glass, carbon and basalt reinforced composites
METHODOLOGY: Mainly experimental DURATION: 9 months CONTACTS: [email protected] [email protected] [email protected] POSSIBLE COLLABORATIONS: Institute of Polymers and Plastics, University of Clausthal (Germany)
Thermographic methods on composites
Machine and Vehicle Design: Master Thesis presentation
Fracture behavior of bone
TITLE: Numerical and experimental study of the mechanical behavior of cortical bone RESEARCH ACTIVITIES: 1. Experimental testing of bovine cortical bone tissue 2. Numerical simulations (FEM) of crack propagation – effect of the microstructure 3. Atomistic simulations (MD) of the nanoscale toughening mechanisms METHODOLOGY: Analytical - Numerical – Experimental DURATION: 9-12 months CONTACTS: [email protected] [email protected] POSSIBLE COLLABORATIONS: Clausthal University of Technology Massachusetts Institute of Technology
Machine and Vehicle Design: Master Thesis presentation
TITLE: Design of innovative biomimetic composite via a biomimetic approach RESEARCH ACTIVITIES: 1. Design (FEM) of a bio-inspired composite 2. Manufacturing 3. Experimental testing METHODOLOGY: Analytical - Numerical – Experimental DURATION: 9-12 months CONTACTS: [email protected] [email protected] [email protected] POSSIBLE COLLABORATIONS: Clausthal University of Technology *(possibility of performing the thesis in Germany)
Design of new biomimetic composites
Machine and Vehicle Design: Master Thesis presentation
TITLE: Linearization of complex nonlinear FE models for aeroelastic analyses. RESEARCH ACTIVITIES: 1. Identify optimal solutions for linearizing complex non linear FE models aimed to describe pylon-store interaction 2. Verify possibility to generate non linear model in state space METHODOLOGY: analytical – numerical – experimental (exploitation existing results) DURATION: 9 months CONTACTS: [email protected] [email protected] POSSIBLE COLLABORATIONS: AleniaAermacchi
Linearization of FEM model
Machine and Vehicle Design: Master Thesis presentation
TITLE: Optimization of composite fabric protections.
RESEARCH ACTIVITIES: 1. Optimization of the geometry of the fabric: 2D fabric, 3D fabric, different orientation of the layers. 2. Optimization of the materials: different yarns’ materials (Kevlar, Dyneema, Carbon, Glass, Metal); different matrix materials (Epoxy, Polyester). METHODOLOGY: analytical – numerical – experimental (exploitation existing results) DURATION: 9 months CONTACTS: [email protected] [email protected] POSSIBLE COLLABORATIONS: Università di Cassino
Optimal Composite protections
Machine and Vehicle Design: Master Thesis presentation
TITLE: Characterization of mechanical properties of materials by means of microindentation technique RESEARCH ACTIVITIES: 1. Investigation on microindentation technique combined with reverse engineering to acquire mechanical properties of material 2. Identification of test cases in order to compare results with consolidated approaches
METHODOLOGY: Analytical - Numerical – experimental DURATION: 9 months CONTACTS: [email protected] [email protected] [email protected] POSSIBLE COLLABORATIONS: University of Columbia (USA)
Microindentation technique
Machine and Vehicle Design: Master Thesis presentation
TITLE: Investigation on mechanical properties of a titanium alloy in low triaxiality loading condition RESEARCH ACTIVITIES: 1. Definition of a test programme in order to investigate in low triaxiality loading condition 2. Investigation in microstructural behaviour 3. Definition of a damage criteria
METHODOLOGY: Analytical - Numerical – experimental DURATION: 9 months CONTACTS: [email protected] [email protected] [email protected] POSSIBLE COLLABORATIONS: Università di Cassino (IT) M.I.T. (USA)
Titanium calibration
Machine and Vehicle Design: Master Thesis presentation
TITLE: Calibration of a Modified Mohr-Coulomb criterion to simulate high velocity impacts RESEARCH ACTIVITIES: 1. Implementation in the actual MMC damage subroutine of strain rate and temperature effect 2. Application of the new subroutine to numerically reproduce ballistic impact on a aluminium shaft 3. Identification of a rigorous and general methodology to quantify and compare the experimental\numerical damage on the shaft METHODOLOGY: analytical – numerical – experimental (exploitation acquired data) DURATION: 9 months CONTACTS: [email protected] [email protected] [email protected] POSSIBLE COLLABORATIONS: M.I.T. (USA)
Ductile damage calibration of Al6061-T6
Machine and Vehicle Design: Master Thesis presentation
TITLE: Fatigue crack monitoring on a helicopter tail boom RESEARCH ACTIVITIES: 1. Analysis of numerical result for strain field sensitivity to crack damage. 2. Optimisation of sensor position for diagnostic performance optimisation. 3. Experimental test of fatigue crack growth on a helicopter tail boom with real-time data processing and diagnosis
METHODOLOGY: numerical - experimental DURATION: 9 months CONTACTS: [email protected] [email protected] POSSIBLE COLLABORATIONS: AgustaWestland (Italy) Air Force Institute of Technology (Poland) Instituto Nacional de Tecnica Aeroespacial (Spain)
Topic: Aeronautical Structure Diagnostics
Machine and Vehicle Design: Master Thesis presentation
TITLE: Low velocity impact monitoring system applied to composite structures with embedded sensors RESEARCH ACTIVITIES: 1. Study on the technique for sensor network embedding. 2. Test rig design and execution of experimental activities. 3. Analysis of experimental signals and comparison with analytical models 4. Numerical modelling of experimental signals METHODOLOGY: analytical - numerical - experimental DURATION: 9 months CONTACTS: [email protected] [email protected] [email protected]
POSSIBLE COLLABORATIONS: Composite manufacturers
Topic: Aeronautical Structure Diagnostics
Machine and Vehicle Design: Master Thesis presentation
TITLE: Structural Health Monitoring of Helicopter Harsh Landings RESEARCH ACTIVITIES: 1. Development of different diagnostic systems for Structural Health Monitoring of Helicopter harsh landings. 2. Damage indexes formulation; 3. Sensor network design, considering sensor typology, performance, position, etc. 4. Smart algorithms design (Artificial Neural Networks, Navigation systems) METHODOLOGY: analytical – numerical - experimental DURATION: 6 – 9 months CONTACTS: [email protected] [email protected] [email protected]
POSSIBLE COLLABORATIONS: AgustaWestland – AleniaAermacchi – Air Force Institute of Technology
Topic: Aeronautical Structure Diagnostics
Machine and Vehicle Design: Master Thesis presentation
TITLE: Monitoring of composite materials with embedded sensors RESEARCH ACTIVITIES: 1. Detailed study of the state of art for composite material monitoring with embedded sensors. 2. Identification of the best sensor technology to be used as a function of the monitered anomaly. 3. Optimisation of sensor network 4. Experimental design and development of composite specimens with embedded sensors 5. Experimental activity and analysis of results with different signal processing methodologies. METHODOLOGY: analytical – experimental DURATION: 6 – 9 months CONTACTS: [email protected] [email protected]
Topic: composite structure monitoring
Machine and Vehicle Design: Master Thesis presentation
TITLE: Crack propagation in presence of random loading conditions RESEARCH ACTIVITIES: 1. Development of real-time life predictors for aeronautical structures subject to fatigue crack propagation (Aluminium alloys). 2. Insertion of retardation/acceleration effects due to overloads/under-loads. 3. Investigation of methodologies to simulate load spectra (rainflow etc.) METHODOLOGY: analytical – numerical - experimental DURATION: 6 – 9 months CONTACTS: [email protected] [email protected] [email protected] POSSIBLE COLLABORATIONS: AgustaWestland - AleniaAermacchi
Topic: Aeronautical Structure Prognostics
Machine and Vehicle Design: Master Thesis presentation
TITLE: Smart Algorithms for Aircraft Squadron Life Management
RESEARCH ACTIVITIES: 1. Development of simplified and complex models able to simulate the life of an Aircraft Squadron. 2. Revision and updating of already available Discrete Event Dynamic System models; 3. Design of Smart Algorithms for optimal squadron life management.
METHODOLOGY: analytical – numerical
DURATION: 6 – 9 months
CONTACTS: [email protected] [email protected] [email protected]
POSSIBLE COLLABORATIONS: AleniaAermacchi
Topic: Aeronautical Maintenance Management
