在KDP晶体(001)晶面上进行了四种压头(即:维氏压头、玻氏压头、圆锥压头、球形压头)的纳米压痕仿真研究。仿真结果表明:完全加载时四种压头与KDP晶体接触位置存在不同程度应力集中。当载荷在0-8 m N范围内时,其与等效应力影响深...在KDP晶体(001)晶面上进行了四种压头(即:维氏压头、玻氏压头、圆锥压头、球形压头)的纳米压痕仿真研究。仿真结果表明:完全加载时四种压头与KDP晶体接触位置存在不同程度应力集中。当载荷在0-8 m N范围内时,其与等效应力影响深度呈近似线性递增关系。完全卸载时,残余应力分布深度为1.3-1.5μm。相同载荷条件下,各压头对应的塑性损伤层深度之间关系与等效应力影响深度之间关系一致。此外,通过纳米压痕实验验证了KDP晶体材料模型及相关参数的正确性。展开更多
文摘在KDP晶体(001)晶面上进行了四种压头(即:维氏压头、玻氏压头、圆锥压头、球形压头)的纳米压痕仿真研究。仿真结果表明:完全加载时四种压头与KDP晶体接触位置存在不同程度应力集中。当载荷在0-8 m N范围内时,其与等效应力影响深度呈近似线性递增关系。完全卸载时,残余应力分布深度为1.3-1.5μm。相同载荷条件下,各压头对应的塑性损伤层深度之间关系与等效应力影响深度之间关系一致。此外,通过纳米压痕实验验证了KDP晶体材料模型及相关参数的正确性。
基金National Natural Science Foundation of China(51172111,51402159)Shandong Province Higher Educational Science and Technology Program(J14LA17)+1 种基金China Postdoctoral Science Foundation(2015M57073)Qingdao Postdoctoral Application Research Project(2015116)。
基金supported by the National Basic Research Program of China(973 Program2013CB632402)+7 种基金the National Natural Science Foundation of China(513201050015137219051402025and 21433007)the Natural Science Foundation of Hubei Province(2015CFA001)the Fundamental Research Funds for the Central Universities(WUT:2014-VII-010)the Self-Determined and Innovative Research Funds of State Key Laboratory of Advanced Technology for Material Synthesis and ProcessingWuhan University of Technology(2013-ZD-1)~~
基金supported by the National Natural Science Foundation of China(20901040/B0111)the Innovation Foundation for Graduate Students of Jiangsu Province,China(CXLX11_0346)a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions~~
基金supported by the National Key R&D Program of China(2016YFC0204100)the Zhejiang Provincial "151" Talents Program+1 种基金the Program for Zhejiang Leading Team of S&T Innovation(2013TD07)the Changjiang Scholar Incentive Program(2009)~~