Jiuchun YAN
,
Shixiong LU
,
Shiqin YANG
,
Shiyu HE
材料科学技术（英）
A model of magnetostrictive strain for polymer-bonded Terfenol-D composite is presented, which is composed of a submodel for the average strain of Terfenol-D composite and a magnetostriction submodel for Terfenol-D particles. Simulated results show that the saturation magnetostriction ¸λs is very closely with experimental results, although there exists some difference between the calculated and the experimental results under low applied magnetic field. The saturation magnetostriction of the composites increases with the particle fraction (vI=72.5～90 vol. pct) in the simulated and experimental results, but the simulation result is not ideal when the particle fraction is higher than 85%.
关键词:
Polymer-bonded Terfenol-D composite
,
null
,
null
Jingquan LIU
,
Jiuchun YAN
,
Shiqin YANG
材料科学技术（英）
In ultrasonic cutting process, the cutting pressure is still essential for achieving good quality cut edge compared with traditional mechanical cutting process. With the increase of the cutting power, the cutting pressure demand decreases. The cutting velocity range is extended broadly. The experiment results show that ultrasonic cutting, technique is an effective, clean and controllable method for machining of carbon fibre prepreg.
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