三角形单元上一个二维数值积分公式的改进

A Modified Formula for a Two-Dimensional Numerical Integratlon in a Triangular Element

本文对［１］、［２］所给的三角形单元上的一个数值积分公式进行了修改，结果表明，修改后的公式的精度有显著提高．

A modified formula for a two-dimensional numerical integration in a triangular ele-ment is presented. Comparing with the results in [1]and[2],this formula is more accurate.