A Numerical Simulation of a Ni-based Bulk Metallic Glass During Compressive Deformation and Fracture

Materials Research

Liang Weizhong¹  Ning Zhiliang¹  Liu Ailian¹  An Yongliang¹ 

关键词: bulk metallic glass;    deformation;    fracture;    numerical simulation;   

DOI  :  10.1590/1516-1439.322014

来源: SciELO

【 摘 要 】

On the basis of compression tests, uni-axial compression deformation and fracture behaviors of NiTiZrAlCuSi bulk metallic glass samples with different dimensions have been studied by numerical simulation approaches. Finite element models for compression simulation have been developed using ABAQUS software. Shear damage models were employed to reproduce the compression deformation and fracture process of the Ni-based amorphous alloys. Mises stress distribution and equivalent plastic strain obtained numerically during compression were analyzed. The simulation results were consistent with those of the compression experiment tests. The smaller of the samples exhibited larger plasticity and higher fracture strength when compared with the bigger one.

【 授权许可】

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