摘要
研究位移障碍下的一个四阶变分不等式的非常规双参数有限元逼近。通过引入与常规单元不同的新技巧,得到了与常规有限元相同最优误差估计。这里的结论对几乎所有已知的非协调板元均适用。
Unconventional double set parameter finite element approximation for a fourth order variational inequality with displacement obstacle is considered. Through introducing some new techniques, the optimal estimate order O(h) is obtained which is the same as that of the conventional finite elements. Our results are valid for almost known nonconforming plate finite elements.
出处
《工程数学学报》
CSCD
北大核心
2003年第4期31-37,共7页
Chinese Journal of Engineering Mathematics
基金
ThisresearchissupportedbytheNationalNaturalScienceFoundationofChina (198710 79)
theNaturalScienceFoundationofHenanProvinceofChinaFoundationofOverseaScholarofChina
ProjectofCreativeEngineeringofHenanProvinceofChina .
关键词
变分不等式
非常规
双参数有限元
最优估计
variational inequality
unconventional
double set parameter element
optimal estimate
