纤维增强大块非晶的各向异性压缩力学行为原位实验研究

Tungsten fiber reinforced zirconium-based bulk Metallic Glass matrix composite (WF/ Zr-MG) is widely used in the field of kinetic energy penetration due to their high density, high strength and high adiabatic shear sensitivity. The static and dynamic micro-in-situ compression test platforms are set up to accurately characterize the influence of different armor-piercing attitudes on the armor-piercing properties of composites during forward and oblique armor-piercing. The compressive mechanical behaviors of WF / Zr-MGs with 6 different fiber arrangement angles of 0◦, 10◦, 25◦, 45◦, 65◦ and 90◦ are studied by in-situ mechanical properties test and microscopic image analysis. The change of the failure strength of the composite with the arrangement angle of fibers is obtained. According to the test results, the failure strength envelope of WF / Zr-MG considering strain rate and fiber arrangement angle is defined. It provides a reference for a safe stress state range of materials under different armor-piercing attitudes and loading rates, which is of great significance for the development of armor-piercing materials.