Simulation of Crack Propagation in Concrete Beams with Cohesive Elements in ABAQUS

2010 ◽  
Vol 2154 (1) ◽  
pp. 12-21 ◽  
Author(s):  
Temesgen W. Aure ◽  
Anastasios M. Ioannides
Keyword(s):  
Crack Propagation ◽  
Concrete Beams ◽  
Cohesive Elements

scholarly journals Delamination Buckling and Crack Propagation Simulations in Fiber-Metal Laminates Using xFEM and Cohesive Elements

2018 ◽  
Vol 8 (12) ◽  
pp. 2440 ◽  
Author(s):  
Davide De Cicco ◽  
Farid Taheri
Keyword(s):  
Finite Element ◽  
Crack Propagation ◽  
Hybrid Composites ◽  
Cohesive Elements ◽  
Zone Method ◽  
Fiber Metal Laminates ◽  
Finite Element Software ◽  
Numerical Predictions ◽  
Delamination Buckling ◽  
Fiber Metal

Simulation of fracture in fiber-reinforced plastics (FRP) and hybrid composites is a challenging task. This paper investigates the potential of combining the extended finite element method (xFEM) and cohesive zone method (CZM), available through LS-DYNA commercial finite element software, for effectively modeling delamination buckling and crack propagation in fiber metal laminates (FML). The investigation includes modeling the response of the standard double cantilever beam test specimen, and delamination-buckling of a 3D-FML under axial impact loading. It is shown that the adopted approach could effectively simulate the complex state of crack propagation in such materials, which involves crack propagation within the adhesive layer along the interface, and its diversion from one interface to the other. The corroboration of the numerical predictions and actual experimental observations is also demonstrated. In addition, the limitations of these numerical methodologies are discussed.

scholarly journals Analytical Model for Fictitious Crack Propagation in Concrete Beams

1995 ◽  
Vol 121 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Jens Peder Ulfkjær ◽  
Steen Krenk ◽  
Rune Brincker
Keyword(s):  
Crack Propagation ◽  
Analytical Model ◽  
Concrete Beams ◽  
Fictitious Crack

scholarly journals Mechanical Performance Evaluation of Concrete Beams Strengthened with Carbon Fiber Materials

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Jun Ding ◽  
Xia Huang ◽  
Gang Zhu ◽  
Song Chen ◽  
Guochao Wang
Keyword(s):  
Carbon Fiber ◽  
Crack Propagation ◽  
Crack Resistance ◽  
Main Crack ◽  
Concrete Beam ◽  
Mechanical Performance ◽  
Concrete Beams ◽  
Loading Capacity ◽  
Externally Bonded ◽  
Fiber Materials

As a kind of novel material of high strength and light weight, carbon fiber materials have been widely used in construction industry to repair the damaged bridges improving its mechanical performance. In this work, the reinforced plates made of carbon fiber materials (for short CFRP) are externally bonded to the bottom of concrete beams to enhance load capacity of beams. The strain energy release rates are calculated at the interest crack in concrete beams based on virtual crack closure technology using FEM and are chosen as the criterion to determine whether the mechanical properties of beams are strengthened by being externally bonded with CFRP. The effects of main crack propagation on plain concrete beam, on concrete beam strengthened with CFRP, and on inclined crack are also discussed. The comparison between the beams with and without CFRP shows that the CFRP significantly increases the loading capacity and crack resistance. It also shows that the main crack propagation can reduce loading capacity and crack resistance regardless of strengthening. The experiment observation also supports this. It proves the validity of the method, and it is concluded that in order to increase the loading capacity and crack resistance effectively, controlling over the crack propagation is necessary.

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