Multi-Scale Material Modeling and Analysis of Composites Using DIGIMAT and ANSYS
25.5 هزار بار بازدید -
8 سال پیش
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Particle reinforced metal matrix composites
Particle reinforced metal matrix composites are playing a vital role in many applications, such as aerospace, aviation and automotive industry. According to production process the particle shapes vary with particle size, particle sphericity and weight fraction of particles with in composites structure. The preset work aims to examine the relationship between the mechanical behavior and composite structure of silicon carbide (SiC) particle reinforced aluminium matrix composite. Mechanical behavior testing was carried out on samples of SiC/Al composites of varying weight fractions by producing the composite specimen by stir casting production process. The particle size of SiC was estimated by measuring from the Scanning Electron Microscope (SEM) image of supplier using webplotdigitizer.
Numerical simulation was carried out to generate SiC/Al composite and mechanical behavior was estimated by considering Representative Volume Element (RVE) of SiC/Al composite. The simulation was carried out using a recent software called DIGIMAT which is a non-linear multi-scale material and structural modeling platform. The simulations were carried out for different weight fractions of SiC/Al composites.
Elastoplastic material properties, strengthened matrix properties and particle-matrix bonding behavior are introduced to simulate the mechanical behaviors of SiC/Al composites. The parameters like enough fine meshes, reasonable loads and proper boundary conditions were established to enhance the accuracy and reduce the computing cost. The numerical and experimental results were well corroborated. The work makes an effective attempt to establish the relationship between the actual composites structure and
mechanical behaviours within the particle reinforced metal matrix composites.
8 سال پیش
در تاریخ 1395/08/10 منتشر شده
است.
25,522
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