Progressive damage modeling and interface delamination of cross-ply laminates subjected to low-velocity impact

2018 ◽  
Vol 53 (6) ◽  
pp. 435-445 ◽  
Author(s):  
Sanan H Khan ◽  
Ankush P Sharma
Keyword(s):  
Material Model ◽  
Element Model ◽  
Failure Criteria ◽  
Low Velocity Impact ◽  
Absorbed Energy ◽  
Low Velocity ◽  
Damage Development ◽  
Velocity Impact ◽  
Interface Delamination ◽  
Post Impact

In this study, Hashin failure criteria were enhanced with Puck’s action plane concept to develop a user material model that can accurately predict the damage development inside the composite laminate when it is subjected to low-velocity impact. A simple cross-ply laminate [0/90]s was chosen to demonstrate the applicability of the material model. Experiments were also performed to observe the real behavior of the laminate. A good correlation between the experiment and simulation results was obtained in terms of peak force and displacement. However, the model under-predicted the absorbed energy, but the discrepancy decreased with the increase in impact energy. Moreover, the interface delamination study was performed by comparing the signatures in post-impact samples of the experiment and numerical simulation. It was observed that the experimentally detected delamination area was closely predicted by the simulation. It was further noticed that the top interface delamination increases faster than bottom interface delamination. Furthermore, the total energy absorbed by the laminates in intralaminar and interlaminar damage modes and friction effects were found to be closely matching with the final absorbed energy of the laminate. Hence, it was seen that the developed finite element model was able to closely capture the behavior occurring in experiments.

Low Velocity Impact Responses of GLARE Hybrid Laminates Based on Simplified Finite Element Model

2019 ◽  
Vol 795 ◽  
pp. 109-115
Author(s):  
Zi Wen Wang ◽  
Jian Ping Zhao ◽  
Song Wang
Keyword(s):  
Finite Element ◽  
Damage Evolution ◽  
Element Model ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Composite Layers ◽  
Interface Delamination ◽  
Hybrid Laminates ◽  
Simplified Finite Element Model

This paper aims to explore the low velocity impact response of glass fiber composite/aluminum hybrid laminates (GLAREs). Puck’s criterion with an efficient algorithm and damage evolution laws based on equivalent strain are used for intralaminar damage models, and the interface delamination is simulated by the bilinear cohesive model in ABAQUS, besides, the Johnson-Cook model is applied to describe the mechanical properties of aluminum layers. Numerical analysis is performed on GLAREs with different impact energy based on simplified finite element model in order to study the damage evolution behaviors of composite layers and interface. In addition, the energy dissipation mechanisms due to damage of composite layers including fiber tension, fiber compression, matrix tension and matrix compression, interface delamination and plastic deformation of aluminum layers are also explored. Meanwhile, the simulation results with simplified model have a good agreement with the experimental results.

scholarly journals A progressive damage model of composite laminates under low-velocity impact

2021 ◽  
Vol 39 (1) ◽  
pp. 37-45
Author(s):  
Junjie Zhou ◽  
Shengnan Wang
Keyword(s):  
Composite Laminates ◽  
Impact Force ◽  
Damage Model ◽  
Low Velocity Impact ◽  
Progressive Damage ◽  
Low Velocity ◽  
Damage Development ◽  
Velocity Impact ◽  
Progressive Damage Model ◽  
Matrix Damage

In this paper, a progressive damage model for studying the dynamic mechanical response and damage development of composite laminates under low-velocity impact was established. The model applied the Hashin and Hou failure criteria to predict the initiation of intra-laminar damage (fiber and matrix damage); a linear degradation scheme combined with the equivalent displacement method was adopted to simulate the damage development; a cohesive zone model with the bilinear traction-separation relationship was used to predict delamination. A user material subroutine VUMAT was coded, and the simulation analysis of carbon fiber reinforcement composite laminates subjected to 25 J impact was performed via commercial software ABAQUS. The predicted impact force-time curve, impact force-displacement curve, and damage distribution contours among the layers were in a good agreement with the experimental, which verified the proposed model. According to the simulation results, the fiber damage and matrix damage were analyzed, and the expansion of delamination was discussed.

Experimental and Numerical Investigation of Response of Sandwich Composite Beam Subjected to Low-Velocity Impact

2015 ◽  
Vol 732 ◽  
pp. 239-246 ◽  
Author(s):  
Tomáš Mandys ◽  
Vladislav Laš ◽  
Tomáš Kroupa ◽  
Robert Zemčík
Keyword(s):  
Composite Beam ◽  
Progressive Failure ◽  
Material Model ◽  
Low Velocity Impact ◽  
Elastic Behavior ◽  
Sandwich Composite ◽  
Low Velocity ◽  
Velocity Impact ◽  
Non Linear ◽  
Force Time

This paper deals with the progressive failure analysis of sandwich composite beam loaded with transversely low-velocity impact. A user defined material model was used for modeling of the non-linear orthotropic elastic behavior of composite skin. The non-linear behavior of foam core was modeled using Low-Density Foam material model. The numerical model was validated using performed experiment and the results in terms of deflection and contact force time dependencies are mutually compared.

Failure Analysis of CCF300/5428 Laminates under Low Velocity Impact Based on Properties of Advanced Composite Material

2013 ◽  
Vol 387 ◽  
pp. 185-188
Author(s):  
Jian Yu Zhang ◽  
Ming Li ◽  
Li Bin Zhao ◽  
Bin Jun Fei
Keyword(s):  
Failure Analysis ◽  
Composite Laminates ◽  
Damage Model ◽  
Failure Criteria ◽  
Low Velocity Impact ◽  
Material System ◽  
Low Velocity ◽  
3D Fem ◽  
Velocity Impact ◽  
The Impact

A progressive damage model (PDM) composed by 3D FEM, Hashin and Ye failure criteria and Changs degradation rules was established to deeply understand the failure of a new material system CCF300/5428 under low velocity impact. User defined subroutines were developed and embedded into the general FEA software package to carry out the failure analysis. Numerical simulations provide more information about the failure of composite laminates under low velocity impact, including initial damage status, damage propagation and final failure status. The history of the impact point displacement and various damage patterns were detailed studied.

Damage Characterization of Carbon and Glass Fiber Composite Plates Subjected to Low-Velocity Impact Using Thermography

2018 ◽  
Author(s):  
Khaled S. Al-Athel ◽  
Ahmed Alomari ◽  
Abul Fazal M. Arif
Keyword(s):  
Glass Fiber ◽  
Composite Laminates ◽  
Impact Damage ◽  
Fiber Composite ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Damage Characterization ◽  
Post Impact

Composites are prone to delamination damage when impacted by low velocity projectiles because of the poor through-thickness strength. Therefore, some of the problems with composites are their poor impact damage resistance, weak post-impact mechanical properties, and the difficulty to inspect the impacted area by nondestructive means. Damage characterization of composite materials requires a scientific methodology, knowledge of polymeric materials, and direct field experience. In this work, low-velocity impact response of composite laminates was experimentally studied using drop-tower to determine the energy absorption. Three types of composites were used: carbon fiber, glass fiber, and mixed fiber composite laminates. In addition, these composites were characterized using thermography to quantify their post impact damage. It was found with the 3D temperature distribution that a strong correlation can be determined between the measured temperatures at the impact region with the quantification of the damage using thermal imaging with advanced mid-wave camera.

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