| KDP晶体缺陷对生长应力分布的影响 |
| |
| 引用本文： | 袁方方,葛培琪,高玉飞.KDP晶体缺陷对生长应力分布的影响[J].人工晶体学报,2011,40(6):1435-1439. |
| |
| 作者姓名： | 袁方方 葛培琪 高玉飞 |
| |
| 作者单位： | 山东大学机械工程学院,济南,250061;山东大学机械工程学院,济南250061;山东大学高效洁净机械制造教育部重点实验室,济南250061 |
| |
| 基金项目： | 国家自然科学基金(51075240); 中国博士后科学基金(20100481257); 山东大学自主创新基金(2010JC012,2010GN051) |
| |
| 摘 要： | 本文采用有限元法分析了不同尺寸、形状的晶体缺陷对大口径KDP晶体生长应力分布的影响.结果表明,晶体中的缺陷导致了晶体内部应力集中,且应力集中程度与缺陷尺寸、晶体生长尺寸呈反向变化,而最大主应力与缺陷尺寸、晶体生长尺寸呈正向变化.当缺陷含有棱边或尖角时,应力集中程度和最大主应力值都明显增加.由于KDP晶体易脆性开裂,随着最大主应力值的增大,开裂机率也增大.
|
| 关 键 词： | KDP晶体 晶体缺陷 有限元分析 应力集中 |
Effect of KDP Crystal Defects on Stress Distribution during Crystal Growth |
| |
| YUAN Fang-fang
,
GE Pei-qi
,
GAO Yu-fei.Effect of KDP Crystal Defects on Stress Distribution during Crystal Growth[J].Journal of Synthetic Crystals,2011,40(6):1435-1439. |
| |
| Authors: | YUAN Fang-fang GE Pei-qi GAO Yu-fei |
| |
| Affiliation: | YUAN Fang-fang1,GE Pei-qi1,2,GAO Yu-fei1(1.School of Mechanical Engineering,Shandong University,Jinan 250061,China,2.Key Laboratory of High Efficiency and Clean Mechanical Manufacture,Ministry of Education,China) |
| |
| Abstract: | The effect of defect sizes and shapes on the KDP crystal stress distribution was analyzed by finite element method.The results show that crystal defects lead to stress concentration within the crystal,and the stress concentration makes a reverse change with defect size and crystal growth size,while the maximum principal stress make a positive change with defect size and crystal growth size and the stress concentration and maximum principal stress values increase significantly owing to the defect with sharp ... |
| |
| Keywords: | KDP crystal crystal defects FEM stress concentration |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《人工晶体学报》浏览原始摘要信息 |
|
点击此处可从《人工晶体学报》下载全文 |
|
