TY - GEN
T1 - Impact and compression after impact behavior of single-stiffener composite panels
AU - Tan, Riming
AU - Guan, Zhidong
AU - Liu, Zhun
AU - Sun, Wei
AU - Xu, Jifeng
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/9/14
Y1 - 2017/9/14
N2 - The purpose of this paper was to investigate the damage tolerance of single-stiffener panels. The impact response and the influence of impact damage on compression behavior were studied. Barely visible impact damage (BVID) was introduced to the stiffener flange tip on the smooth side. By applications of visual inspections and C-scan, massive damage was detected. After the impact experiment, compression tests were carried on the intact specimens and impacted specimens. The experimental results reveal that impact damage has no significant effect on the buckling mode. but decreases the buckling load by about 10%. The results also show that impact damage has an important influence on the compression failure mechanism. Under the compressive loading, impact damage propagates inside the skin after the buckling, which is a trigger for final fracture of damaged stiffened panels. Consequently, the impact damage causes a dramatical decrease in the failure load by 34%, approximately.
AB - The purpose of this paper was to investigate the damage tolerance of single-stiffener panels. The impact response and the influence of impact damage on compression behavior were studied. Barely visible impact damage (BVID) was introduced to the stiffener flange tip on the smooth side. By applications of visual inspections and C-scan, massive damage was detected. After the impact experiment, compression tests were carried on the intact specimens and impacted specimens. The experimental results reveal that impact damage has no significant effect on the buckling mode. but decreases the buckling load by about 10%. The results also show that impact damage has an important influence on the compression failure mechanism. Under the compressive loading, impact damage propagates inside the skin after the buckling, which is a trigger for final fracture of damaged stiffened panels. Consequently, the impact damage causes a dramatical decrease in the failure load by 34%, approximately.
KW - compression failure mechanism
KW - compression-after-impact
KW - impact damage
KW - low-velocity impact
KW - single-stiffener composite panels
UR - https://www.scopus.com/pages/publications/85032370996
U2 - 10.1109/ICMAE.2017.8038625
DO - 10.1109/ICMAE.2017.8038625
M3 - 会议稿件
AN - SCOPUS:85032370996
T3 - 2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
SP - 106
EP - 112
BT - 2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
Y2 - 22 July 2017 through 25 July 2017
ER -