TY - JOUR
T1 - Experimental Investigation of the Post-Fire Impact Resistance and Energy-Absorbing Characteristics of Polyethylene Cored Lightweight Metal Sandwich Panels
AU - Wu, Peng
AU - Zhou, Ru
AU - Chen, Zhihao
AU - Zhang, Yipeng
AU - Jiang, Juncheng
N1 - Publisher Copyright:
© 2024 Taylor & Francis Group, LLC.
PY - 2024
Y1 - 2024
N2 - To investigate the effect of different fire loading time and stitching methods on the post-fire impact resistance of the polyethylene cored sandwich panels, quasi-static perforation, and low-velocity impact tests were conducted after real fire tests. The temperature distribution, deformation, failure behavior, load-carrying capacity, and energy absorption capacity of the panels were explored and compared. The effects of key parameters such as the stitching method, fire time, and impact energy on the load versus displacement curves and energy absorption were discussed in detail. In addition, a theoretical model was developed to predict the plastic strain of sandwich panels under the low-velocity impact, and the results showed that when the height of the falling hammer is constant, the depression value of the upper surface center point ((Formula presented.)) and the depression value of the lower surface center point ((Formula presented.)) are both linearly related to (Formula presented.).
AB - To investigate the effect of different fire loading time and stitching methods on the post-fire impact resistance of the polyethylene cored sandwich panels, quasi-static perforation, and low-velocity impact tests were conducted after real fire tests. The temperature distribution, deformation, failure behavior, load-carrying capacity, and energy absorption capacity of the panels were explored and compared. The effects of key parameters such as the stitching method, fire time, and impact energy on the load versus displacement curves and energy absorption were discussed in detail. In addition, a theoretical model was developed to predict the plastic strain of sandwich panels under the low-velocity impact, and the results showed that when the height of the falling hammer is constant, the depression value of the upper surface center point ((Formula presented.)) and the depression value of the lower surface center point ((Formula presented.)) are both linearly related to (Formula presented.).
KW - PE cored sandwich panels
KW - fire resistance
KW - fire spread
KW - low-velocity impact
KW - quasi-static impact
UR - http://www.scopus.com/inward/record.url?scp=85189621278&partnerID=8YFLogxK
U2 - 10.1080/00102202.2024.2333839
DO - 10.1080/00102202.2024.2333839
M3 - 文章
AN - SCOPUS:85189621278
SN - 0010-2202
JO - Combustion Science and Technology
JF - Combustion Science and Technology
ER -