Behavior of compression-loaded composite panels with stringer terminations and impact damage

被引:2
作者
Jegley, DC [1 ]
机构
[1] NASA, Langley Res Ctr, Struct Mech Branch, Struct Div, Hampton, VA 23681 USA
来源
JOURNAL OF AIRCRAFT | 1998年 / 35卷 / 06期
关键词
D O I
10.2514/2.2390
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
The results of an analytical and experimental study of graphite-epoxy stiffened panels with impact-damaged stringer terminations are presented. Five stitched graphite-epoxy panels with stiffeners with a gradual reduction in either thickness or height were examined. Panels were analyzed using finite element analysis and tested by loading them in axial compression to a predetermined load. The panels were then subjected to impact damage and loaded to failure. Axial midplane strains, surface strains, interlaminar strains, and failure results are discussed.
引用
收藏
页码:942 / 948
页数:7
相关论文
共 6 条
[1]   QUADRATIC STRESS CRITERION FOR INITIATION OF DELAMINATION [J].
BREWER, JC ;
LAGACE, PA .
JOURNAL OF COMPOSITE MATERIALS, 1988, 22 (12) :1141-1155
[2]  
BROGAN FA, 1994, STAGS USER MANUAL
[3]  
HINRICHS S, 1995, GEN METHODS DETERMIN, V1
[4]  
JEGLEY DC, 1997, 110204 NASA TM
[5]  
JEGLEY DC, 1998, 981785 AIAA
[6]  
MARKUS A, 1993, 3229 NASA CP, P503