TY - JOUR
T1 - Glass reinforced epoxy tubes subjected to indentation load
T2 - A study of scaling effects
AU - Hafeez, F.
AU - Almaskari, F.
N1 - Funding Information:
Authors would like to acknowledge the financial support provided by the Petroleum Institute, Abu Dhabi under Grant for Project No. 12344.
PY - 2014/11
Y1 - 2014/11
N2 - Scaling effects in thin walled glass reinforced epoxy filament wound cylindrical tubes with [±55°] layup subjected to indentation load are presented in this work. Buckingham PI theorem is used to scale input and output parameters for four different scales (n=1/4, 1/2, 3/4 and 1). Scaling laws are investigated for force, energy dissipation and damage propagation when tubes are resting on a flat surface. Damage propagation is captured with a video camera, by recording damage reflection on an upward facing mirror placed inside the tubes. The threshold force causing onset of delamination is identified and used for calculation of mode II energy release rate GIIC with already established relation between the two. The scaling laws have been found effective in estimating quite a few parameters, including force displacement, energy displacement relation and peak load. Damage growth is found to obey scaling law and it is presented with respect to force applied, energy dissipated, indentation displacement and time.
AB - Scaling effects in thin walled glass reinforced epoxy filament wound cylindrical tubes with [±55°] layup subjected to indentation load are presented in this work. Buckingham PI theorem is used to scale input and output parameters for four different scales (n=1/4, 1/2, 3/4 and 1). Scaling laws are investigated for force, energy dissipation and damage propagation when tubes are resting on a flat surface. Damage propagation is captured with a video camera, by recording damage reflection on an upward facing mirror placed inside the tubes. The threshold force causing onset of delamination is identified and used for calculation of mode II energy release rate GIIC with already established relation between the two. The scaling laws have been found effective in estimating quite a few parameters, including force displacement, energy displacement relation and peak load. Damage growth is found to obey scaling law and it is presented with respect to force applied, energy dissipated, indentation displacement and time.
KW - Filament wound tubes
KW - Glass reinforced epoxy
KW - Indentation
KW - Scaling
UR - https://www.scopus.com/pages/publications/84906065563
U2 - 10.1016/j.compstruct.2014.06.021
DO - 10.1016/j.compstruct.2014.06.021
M3 - Article
AN - SCOPUS:84906065563
SN - 0263-8223
VL - 117
SP - 433
EP - 444
JO - Composite Structures
JF - Composite Structures
IS - 1
ER -