TY - JOUR
T1 - Mechanical behavior of novel GFRP foam sandwich adhesive joints
AU - Cen, Bo
AU - Liu, Yang
AU - Zeng, Zhuo
AU - Wang, Jian
AU - Lu, Xiaofeng
AU - Zhu, Xiaolei
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/12/1
Y1 - 2017/12/1
N2 - Composite foam sandwich is a new, energy-absorbing and load-bearing type of structure, which is widely used in engineering. Furthermore, utilization of connection between composite foam sandwich panels is essential. In this paper, an adhesive joint between two GFRP foam sandwich panels is proposed (model A) and several main failure modes of the novel adhesive joint structure are investigated through four-point bending test. Based on 3D-Hashin failure criterion, cohesive behavior failure criterion and brittle cracking failure criterion of novel GFRP foam sandwich adhesive joints, a progressive damaged model is established to simulate the strength and the results of FEM model and experiments are in good agreements. In order to analyze the effects of stiffness and strength on the structure's mechanical properties, three more connection were proposed to compare the simulation results, which established a simple engineering design for joint structure.
AB - Composite foam sandwich is a new, energy-absorbing and load-bearing type of structure, which is widely used in engineering. Furthermore, utilization of connection between composite foam sandwich panels is essential. In this paper, an adhesive joint between two GFRP foam sandwich panels is proposed (model A) and several main failure modes of the novel adhesive joint structure are investigated through four-point bending test. Based on 3D-Hashin failure criterion, cohesive behavior failure criterion and brittle cracking failure criterion of novel GFRP foam sandwich adhesive joints, a progressive damaged model is established to simulate the strength and the results of FEM model and experiments are in good agreements. In order to analyze the effects of stiffness and strength on the structure's mechanical properties, three more connection were proposed to compare the simulation results, which established a simple engineering design for joint structure.
KW - Bending
KW - Composite sandwich
KW - Joints
KW - Mechanical properties
UR - http://www.scopus.com/inward/record.url?scp=85026732987&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2017.07.034
DO - 10.1016/j.compositesb.2017.07.034
M3 - 文章
AN - SCOPUS:85026732987
SN - 1359-8368
VL - 130
SP - 1
EP - 10
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
ER -