航空精密制造技术
航空精密製造技術
항공정밀제조기술
AVIATION PRECISION MANUFACTURING TECHNOLOGY
2013年
6期
1-3,7
,共4页
向勇%陈静%白满社%任杰%陈勇%张晋宽
嚮勇%陳靜%白滿社%任傑%陳勇%張晉寬
향용%진정%백만사%임걸%진용%장진관
纳米压痕%有限元模拟%超光滑表面
納米壓痕%有限元模擬%超光滑錶麵
납미압흔%유한원모의%초광활표면
nano-indentation%finite element simulation%super-smooth surface
基于纳米压痕技术对Li2O-Al2O3-SiO2微晶玻璃超光滑表面进行了纳米压痕实验，通过实验测得微晶玻璃纳米硬度和弹性模量的平均值分别为8.808 GPa和77.65 GPa。采用有限元软件ABAQUS建立了微晶玻璃纳米压痕过程的2D轴对称数值模型，通过比较有限元计算所得的载荷-位移曲线和实际纳米压痕试验得到的曲线，反复修正得出材料塑性性能。
基于納米壓痕技術對Li2O-Al2O3-SiO2微晶玻璃超光滑錶麵進行瞭納米壓痕實驗，通過實驗測得微晶玻璃納米硬度和彈性模量的平均值分彆為8.808 GPa和77.65 GPa。採用有限元軟件ABAQUS建立瞭微晶玻璃納米壓痕過程的2D軸對稱數值模型，通過比較有限元計算所得的載荷-位移麯線和實際納米壓痕試驗得到的麯線，反複脩正得齣材料塑性性能。
기우납미압흔기술대Li2O-Al2O3-SiO2미정파리초광활표면진행료납미압흔실험，통과실험측득미정파리납미경도화탄성모량적평균치분별위8.808 GPa화77.65 GPa。채용유한원연건ABAQUS건립료미정파리납미압흔과정적2D축대칭수치모형，통과비교유한원계산소득적재하-위이곡선화실제납미압흔시험득도적곡선，반복수정득출재료소성성능。
Nano-indentation tests on super-smooth surface of glass-ceramic in the Li2O-Al2O3-SiO2 system are conducted through Nano-indentation technique. The mean value of nano-hardness and elastic modulus is 8.808 GPa and 77.65 GPa separately. 2D axisymmetric finite element model (FEM) was established for glass-ceramic nano-indentation process with commercial finite element software package ABAQUS. The depth-load curve calculated by FEM was compared with nano-indentation experimental depth-load curve. The material's plastic properties are gained through repeatedly modified the calculated curve obtained from FEM.
