会议论文详细信息
3rd International Meeting for Researchers in Materials and Plasma Technology; 1st Symposium on Nanoscience and Nanotechnology
Influence of thermal residual stress on behaviour of metal matrix composites reinforced with particles
物理学;材料科学
Guzmán, R.E.^1 ; Hernández Arroyo, E.^1
Universidad Pontificia Bolivariana, Floridablanca, Colombia^1
关键词: Commercial finite element codes;    Manufacturing process;    Mechanical behaviour;    Metallic matrices;    Reinforcing particles;    Thermal residual stress;    Uniaxial stress;    Unit cell modeling;   
Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/687/1/012060/pdf
DOI  :  10.1088/1742-6596/687/1/012060
学科分类:材料科学(综合)
来源: IOP
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【 摘 要 】

The properties of a metallic matrix composites materials (MMC's) reinforced with particles can be affected by different events occurring within the material in a manufacturing process. The existence of residual stresses resulting from the manufacturing process of these materials (MMC's) can markedly differentiate the curves obtained in tensile tests obtained from compression tests. One of the themes developed in this work is the influence of residual stresses on the mechanical behaviour of these materials. The objective of this research work presented is numerically estimate the thermal residual stresses using a unit cell model for the Mg ZC71 alloy reinforced with SiC particles with volume fraction of 12% (hot-forging technology). The MMC's microstructure is represented as a three dimensional prismatic cube-shaped with a cylindrical reinforcing particle located in the centre of the prism. These cell models are widely used in predicting stress/strain behaviour of MMC's materials, in this analysis the uniaxial stress/strain response of the composite can be obtained through the calculation using the commercial finite-element code.

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