TY - JOUR
T1 - Effects of delamination on compressional properties of composite laminate
AU - Zhou, Rui
AU - Guan, Zhidong
AU - Jia, Yunchao
AU - Wang, Kailun
AU - Zhang, Chenqian
N1 - Publisher Copyright:
©, 2015, Beijing University of Aeronautics and Astronautics (BUAA). All right reserved.
PY - 2015/2/1
Y1 - 2015/2/1
N2 - Compressional behaviors of composite laminates were experimentally investigated based on three measuring methods, Shadow Moiré measurement, strain measurement on the surface of laminates and C-scan together with multi-stage loading. Laminates with artificial delamination of various depths, sizes and quantities were studied. The buckling of sub-layer, the extension of delamination and the instability phenomena during the experiments were observed, compared and connected. Three different modes of the extension of delamination were summarized based on the experimental results. The mechanisms of the buckling of sub-layer, the instability of the laminates, etc. were analyzed based on the three modes. The critical buckling stress, the final failure stress and the delamination extension extent through the vertical direction were compared and combined with the experimental phenomenon to analyze the effects of delamination on compressional properties of composite laminate systematically. The results can provide guidance for the damage tolerance designing of composite structures.
AB - Compressional behaviors of composite laminates were experimentally investigated based on three measuring methods, Shadow Moiré measurement, strain measurement on the surface of laminates and C-scan together with multi-stage loading. Laminates with artificial delamination of various depths, sizes and quantities were studied. The buckling of sub-layer, the extension of delamination and the instability phenomena during the experiments were observed, compared and connected. Three different modes of the extension of delamination were summarized based on the experimental results. The mechanisms of the buckling of sub-layer, the instability of the laminates, etc. were analyzed based on the three modes. The critical buckling stress, the final failure stress and the delamination extension extent through the vertical direction were compared and combined with the experimental phenomenon to analyze the effects of delamination on compressional properties of composite laminate systematically. The results can provide guidance for the damage tolerance designing of composite structures.
KW - Buckling of sub-layer
KW - Composite
KW - Experimental investigation
KW - Extension of delamination
KW - Secondary instability
UR - https://www.scopus.com/pages/publications/84928734214
U2 - 10.13700/j.bh.1001-5965.2014.0116
DO - 10.13700/j.bh.1001-5965.2014.0116
M3 - 文章
AN - SCOPUS:84928734214
SN - 1001-5965
VL - 41
SP - 311
EP - 317
JO - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
JF - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
IS - 2
ER -