Numerical simulation of progressive damage and failure in composite laminates using XFEM/CZM coupled approach

2017 ◽  
Vol 95 ◽  
pp. 197-207 ◽  
Author(s):  
R. Higuchi ◽  
T. Okabe ◽  
T. Nagashima
Keyword(s):  
Numerical Simulation ◽  
Composite Laminates ◽  
Progressive Damage ◽  
Damage And Failure

Progressive Damage and Failure Modeling in Fiber-Reinforced Laminated Composites Containing a Hole

2011 ◽  
Vol 21 (6) ◽  
pp. 893-911 ◽  
Author(s):  
B. M. Zhang ◽  
L. Zhao
Keyword(s):  
Material Properties ◽  
Composite Laminates ◽  
Laminated Composites ◽  
Matrix Material ◽  
Micromechanical Model ◽  
Failure Criteria ◽  
Experimental Results ◽  
Progressive Damage ◽  
Fiber Reinforced ◽  
Damage And Failure

A progressive damage and failure model for fiber-reinforced laminated composites is developed in combination of finite element procedure and micromechanical model based on a unit cell. The micromechanical model can be used to evaluate failure criteria at the micro-level with fiber and matrix material properties rather than laminate material parameters. Once either of the constituents has damaged, the corresponding material properties are degraded by the damage factor. The micromechanical model and the damage theory are implemented in the finite software to model the damage progression and compute the ultimate strength of the composite laminates containing a hole. The simulation results of this model are compared with a model that is used in the failure criteria at the macro-level. The predicted strengths for both models are furthermore compared with the experimental results, and a well agreement in the simulation and experimental results is revealed.

Tensile mechanical behavior and failure mechanisms of multihole fiber metal laminates—Experimental characterization and numerical prediction

2020 ◽  
Vol 39 (13-14) ◽  
pp. 499-519
Author(s):  
Wentao He ◽  
Changzi Wang ◽  
Shuqing Wang ◽  
Lu Yao ◽  
Jun Wu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Mechanical Behavior ◽  
Composite Laminates ◽  
Failure Mechanisms ◽  
Image Correlation ◽  
Progressive Damage ◽  
Fiber Metal Laminates ◽  
Mechanical Responses ◽  
Final Failure ◽  
Fiber Metal

This work mainly investigates the effects of the hole number and layer direction on the tensile mechanical behavior and failure mechanisms of multihole fiber metal laminates by experimental and numerical methods. With the aid of digital image correlation technique, tensile tests are implemented to obtain mechanical responses of different multihole fiber metal laminates. Subsequently, numerical simulation considering thermal residual stress is conducted to elucidate the failure modes and progressive damage evolution of multihole fiber metal laminates, which integrates the progressive damage model of composite laminates and a cohesive zone model between aluminum sheet/composite laminates. Finally, numerical predictions are found in a good agreement with experimental measurements, in terms of mechanical responses and fracture morphologies. Results demonstrate that the number of holes has negligible influence on the ultimate tensile strength, whereas affects the final failure strain of multihole fiber metal laminates evidently. With the increase of layer direction, the fracture morphology changes from evident brittle fracture to fiber pull-out and matrix damage, which indicates that the critical failure mechanism of multihole fiber metal laminates changes from tension dominated to tension–shear dominated. Additionally, the longer loading history from initial damage to final failure of composite laminates demonstrates the significance of considering progressive damage behavior in numerical simulation.

Progressive Damage and Failure Analysis of Fiber-Reinforced Laminated Composites Containing a Hole

2011 ◽  
Vol 314-316 ◽  
pp. 2243-2252
Author(s):  
Bo Ming Zhang ◽  
Lin Zhao
Keyword(s):  
Material Properties ◽  
Composite Laminates ◽  
Laminated Composites ◽  
Matrix Material ◽  
Micromechanical Model ◽  
Failure Criteria ◽  
Progressive Damage ◽  
Fiber Reinforced ◽  
Damage And Failure ◽  
Finite Element Procedure

A progressive damage and failure model for fiber reinforced laminated composites is developed in combination of finite element procedure and micromechanical model based on a unit cell. The micromechanical model can be used to evaluate failure criteria at the micro-level with fiber and matrix material properties. Once either of the constituents has damaged, the corresponding material properties are degraded by the damage factor. The micromechanical model and the damage theory are implemented in the finite software ABAQUS by using the user material subroutine UMAT and VUMAT, to model the damage progression and compute the ultimate strength of the composite laminates containing a hole. The predicted strengths for this model is compared with the experimental results, and a well agreement in the simulation and experimental resulted is revealed.

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