On the micromechanics of die compaction of composite powder materials
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Olle Skrinjar
und Per-Lennart Larsson
Abstract
In the present investigation a finite element study is performed concerning the local contact behavior of spherical powders in unit cell arrangements of composite powder materials. In particular, die compaction of unit cells of regular body-centered cubic lattices have been studied and the numerical results are compared to previous analytical and numerical findings describing, in particular, local contact but also global behavior in composite powder compaction. The foundation for the analytical results rests on previously published results where approximate composite contact relations are derived from self-similarity considerations in a situation where the powder particles are of the same material. Results pertinent to isostatic compaction are also presented for comparative reasons. The finite element calculations are continued up to full density of solid material in the unit cells.
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© 2011, Carl Hanser Verlag, München
Artikel in diesem Heft
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- Phase-field simulation of diffusion couples in the Ni–Al system
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Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- On the evolution of microstructure in oxygen-free high conductivity copper during thermo-mechanical processing using rotary swaging
- Phase-field simulation of diffusion couples in the Ni–Al system
- Finnis–Sinclair potentials for fcc Au–Pd and Ag–Pt alloys
- Hollow pyramidal lattice truss structures
- Synthesis of single-phase polycrystalline Ca2Si powder and sintered compacts
- On the micromechanics of die compaction of composite powder materials
- Structural, thermal, electrical and mechanical properties of nanosilica-composite polymer electrolytes
- The effects of tool rotation speed and traverse speed on friction stir welding of AISI 304 austenitic stainless steel
- Estimation of Fe2B growth on low-carbon steel based on two diffusion models
- Glass-forming ability and thermal stability of gas-atomized Zr50Cu40Al10 metallic glass powders
- Mechanochemical synthesis of nanocrystalline lead selenide: industrial approach
- On abnormal grain growth in nanocrystalline materials induced by small particles
- High-temperature deformation behaviour of Ti3Al-11Nb intermetallic
- Optimization of ZnO2 nanoparticle content in binary blended concrete to enhance high strength concrete
- New structural and mechanical features of hexagonal materials after room temperature extrusion using the KoBo method
- People
- Yuri Estrin turns 65
- DGM News
- DGM News