TY - JOUR
T1 - Influence of interference-fit percentage on stress and damage mechanism in hi-lock pin installation process of CFRP
AU - Zou, Peng
AU - Li, Yuan
AU - Zhang, Kaifu
AU - Cheng, Hui
AU - Li, Jian
N1 - Publisher Copyright:
© 2017, © The Author(s) 2017.
PY - 2017/10/1
Y1 - 2017/10/1
N2 - The interference-fit technology is an effective way to enhance fatigue life of mechanical structures. However, for composites, oversized interference-fit percentage causes damages and then decreases the joint performance directly. Influence of percentages on stress and damage around Carbon Fiber Reinforced Plastics interference-fit hole is analyzed in this paper. The progressive damage theory is introduced into a three-dimensional finite-element model, which consists of the mixed failure criteria combining Hashin criteria and maximum stress criteria and the corresponding property degradation rules. A nonlinear shear stress–strain relationship is also built to solve the nonlinear material behavior. Three groups of 0.4%, 0.8%, and 1.2% interference-fit percentages are analyzed. Corresponding pin installation experiments are conducted to validate the accuracy of the model. The inserting force, stress distribution, and damage initialization around the hole are investigated and discussed in this model.
AB - The interference-fit technology is an effective way to enhance fatigue life of mechanical structures. However, for composites, oversized interference-fit percentage causes damages and then decreases the joint performance directly. Influence of percentages on stress and damage around Carbon Fiber Reinforced Plastics interference-fit hole is analyzed in this paper. The progressive damage theory is introduced into a three-dimensional finite-element model, which consists of the mixed failure criteria combining Hashin criteria and maximum stress criteria and the corresponding property degradation rules. A nonlinear shear stress–strain relationship is also built to solve the nonlinear material behavior. Three groups of 0.4%, 0.8%, and 1.2% interference-fit percentages are analyzed. Corresponding pin installation experiments are conducted to validate the accuracy of the model. The inserting force, stress distribution, and damage initialization around the hole are investigated and discussed in this model.
KW - Composite structures
KW - damage mechanism
KW - installation process
KW - interference-fit percentage
KW - stress
UR - http://www.scopus.com/inward/record.url?scp=85030672543&partnerID=8YFLogxK
U2 - 10.1177/0021998316689601
DO - 10.1177/0021998316689601
M3 - 文章
AN - SCOPUS:85030672543
SN - 0021-9983
VL - 51
SP - 3525
EP - 3538
JO - Journal of Composite Materials
JF - Journal of Composite Materials
IS - 25
ER -