用混合标架法处理药柱尾部人工脱粘滑动边界条件

TREATMENT OF STRESS RELEASE MOVING BOUNDARY CONDITIONS VIA MIXING COORDINATE METHOD

关键词:  装药结构  有限元法  边界条件  应力消除  应力分布

Key words:  Charge structure  Finite element method  Boundary conditions  Stress relieving  Stress distribution

摘要:

介绍了采用混合标架法处理药柱尾部人工脱粘滑动边界条件以及对总刚方程进行对称处理求解的方法，用此法对某药柱模型进行了轴向加速度载荷作用下的应力分析，并与有关文献作了比较和分析，证明计算结果更接近实际。

Abstract:

his paper introduced the so-called mixing coordinate method to treat stress release moving boundary conditions in the grain end to find the solutions to the general stiffness equation via symmetrical treatment. The stress analysis of a certain grain module under accellerating axial load was also performed in the paper and its results were more reliable and proximate to the real values than those find in the literature concerned.