Existence of zero-group velocity modes in an incompressible plate

被引：0
|
作者：
Hussain, T. [1 ]
Ahmad, F. [1 ]
机构：
[1] Natl Univ Sci & Technol, Ctr Adv Math & Phys, Islamabad, Pakistan
来源：
ARCHIVES OF MECHANICS | 2014年 / 66卷 / 01期
关键词：
Lamb modes; anisotropy; zero-group velocity points; LAMB WAVES; VIBRATION; STRESS;
D O I：
暂无
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
ZERO-GROUP VELOCITY (ZGV) LAMB MODES are studied in an incompressible orthotropic plate. The existence of such modes critically depends on the anisotropy parameter a = (c(11) + c(22) - 2c(12) - 4c(66))/c(66). With materials having a > -1, none of the modes possesses any ZGV points and every mode has such a point if a < -1. Several modes have multiple ZGV points.
引用
收藏
页码：55 / 65
页数：11
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