物理学报Issue(23)：234203-1-234203-6,6.DOI:10.7498/aps.62.234203
赫兹型微裂纹光场调制增强作用的系统研究
Systematic studies on the field enhancement effect of Hertzian microcracks
蔡月飞 1吕志伟 1李森森 1王雨雷 1朱成禹 1林殿阳 1何伟明1
作者信息
- 1. 哈尔滨工业大学光电子研究所，可调谐激光国家重点实验室，哈尔滨 150001
- 折叠
摘要
Abstract
In order to study the effect of micro-cracks on the damage growth, the different field enhancements of the Hertzian micro crack are investigated by varying its angle, width, and depth. Simulation results show that the most harmful cracks are those with inclination angles from 20.9◦to 45◦, and the cracks with an angle less than 45◦and larger than 48.2◦are also harmful, but the cracks with inclination angle of 45◦are the least harmful. Increasing the depth of the Hertzian cracks will lead to their field enhancement factors increasing with a quadratic relationship. However, increasing the width does not make it essential to the increase of its field enhancement ability. The development of micro-cracks can be approximated by increase its depth and width, so the development of cracks will lead to the increase of its light field modulation capability, and also to its damage growth rate to accelerate, following an exponential law.关键词
损伤增长/亚表面缺陷/赫兹型裂纹/光场增强Key words
damage growth/sub-surface defects/Hertzian crack/light field enhancement引用本文复制引用
蔡月飞,吕志伟,李森森,王雨雷,朱成禹,林殿阳,何伟明..赫兹型微裂纹光场调制增强作用的系统研究[J].物理学报,2013,(23):234203-1-234203-6,6.
