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A coupled XFEM fatigue modelling of crack growth, delamination and bridging in FRP strengthened metallic plates
被引:19
作者:
Rashnooie, R.
[1
]
Zeinoddini, M.
[1
]
Ahmadpour, F.
[1
]
Aval, S. B. Beheshti
[1
]
Chen, T.
[2
]
机构:
[1] KN Toosi Univ Technol, Fac Civil Engn, Tehran, Iran
[2] Tongji Univ, Dept Struct Engn, Shanghai 200092, Peoples R China
关键词:
Extended finite element method (XFEM);
Fatigue crack growth (FCG);
Fibre reinforced polymer (FRP);
Bridging;
Delamination;
FINITE-ELEMENT-METHOD;
STEEL PLATES;
ALUMINUM PANELS;
COMPOSITE PATCH;
PROPAGATION;
BEHAVIOR;
PERFORMANCE;
PREDICTION;
DAMAGE;
LIFE;
D O I:
10.1016/j.engfracmech.2022.109017
中图分类号:
O3 [力学];
学科分类号:
08 ;
0801 ;
摘要:
This paper proposes an extended finite element method (XFEM) modelling approach coupled with cyclic damage mechanics criteria to simulate the fatigue crack growth (FCG), progressive delamination, and bridging in metal-fibre reinforced polymer (FRP) composites. The FCG in the metal is described using linear elastic fracture mechanics. The cycle-by-cycle degradation of the adhesive layer, progressive damage in the FRP layers, and metal-FRP interface delamination are modelled using the damage mechanics criteria. The proposed XFEM model successfully simulates the fatigue behaviour of FRP-strengthened metallic plates. The FCG rates, crack trajectories, fatigue lives, and failure modes satisfactorily agree with the corresponding experimental data.
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页数:25
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