On the applicability of rate-dependent cohesive zone models in low-velocity impact simulation

Huang, Jia; Zhang, Chenxu; Wang, Jizhen; Zhang, Chao

doi:10.1016/j.engfracmech.2022.108659

Cited by 9 publications

(4 citation statements)

References 34 publications

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“…Analogously, as the developed numerical/computational DRM architecture can straightforwardly incorporate the representation of inertial terms, the inclusion in the framework of a suitable representation of intergranular de-cohesion under dynamic loading [93,94] would open to the investigation of dynamic micro-cracking [36] and fragmentation [95] in 3D crystal aggregates. An alternative boundary element framework for polycrystalline elastodynamic analysis could be developed employing a Laplace transform re-formulation of the elastodynamics equations [96,67], instead of the DRM representation.…”

Section: Discussion and Further Developmentsmentioning

confidence: 99%

An integral framework for computational thermo-elastic homogenization of polycrystalline materials

Benedetti

2023

Computer Methods in Applied Mechanics and Engineering

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Section: Discussion and Further Developmentsmentioning

confidence: 99%

An integral framework for computational thermo-elastic homogenization of polycrystalline materials

Benedetti

2023

Computer Methods in Applied Mechanics and Engineering

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“…The damage variable is associated with the real‐time stress–strain state of the material under the current loading condition, and is used to characterize the degree of damage of the element. Based on the Murakami‐Ohno 36 damage theory for the damage evolution part of composite laminates, the calculation formulas for different damage variables corresponding to different damage modes are shown below:

d_{i} = \frac{δ_{eq, i}^{f} (δ_{eq, i} - δ_{eq, i}^{0})}{δ_{eq, i} (δ_{eq, i}^{f} - δ_{eq, i}^{0})} .

…”

Section: Numerical Simulationmentioning

confidence: 99%

High‐velocity impact resistance and energy absorption behavior of Carbon‐Kevlar hybrid composite laminates

Sun,

Wang,

Zhao

et al. 2023

Polymer Composites

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This study investigated the high‐velocity impact behavior of composite plates with different hybrid ratios and structural configurations through experimental and numerical simulation studies. The results showed that the critical penetration velocity of the composite plate generally increases with an increase in the volume fraction of aramid fibers. The high‐velocity impact finite element model developed in this study accurately simulated the high‐velocity impact behavior of laminated fiber composite plates with various hybrid ratios and different structures. The impact failure patterns of the plates were analyzed, and it was observed that the carbon fibers on the back face were prone to tensile fracture, followed by the gradual fracture of aramid fibers. The numerical simulation results show significant differences in residual impact velocity and energy absorption when impacted from different sides and the impact from the aramid side resulted in better energy absorption, which is contrary to the findings in many existing research papers. These findings provide valuable insights into the impact resistance of composite materials and can guide the design and development of high‐performance composite structures for aero‐engine case designing.Highlights The high‐velocity impact behavior of C/K fiber epoxy resin matrix composite laminates are studied. The critical penetration velocity increases with the increase of aramid fiber volume fraction. The laminate absorbs most of the impact energy during the instantaneous impact time. Energy absorption ability is better when the impact surface is aramid fibers. Carbon fibers on the back side of the laminate are more prone to tensile fracture.

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“…Different evolution criteria are used to calculate the damage variable. A few damage evolution criteria researchers used are sudden degradation, 37 strain‐based gradual degradation 38 and displacement‐based gradual degradation 39 . Later, this damage variable was used to modify the property matrix for damaged elements.…”

Section: Introductionmentioning

confidence: 99%

A parametric study on patch repaired quasi‐isotropic laminate in high‐velocity impact environment: Experimental and numerical investigation

Sahoo,

Chennamsetti,

Arockiarajan

2024

Polymer Composites

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In this work, the post‐repair behavior of a quasi‐isotropic laminate was studied in a high‐velocity impact environment. The composite laminates were repaired using an external bonded patch repair procedure. Impact tests were performed to understand the effect of patch size and the result of filling the damaged region with a neat epoxy and hardener mixture. Two different size square patches, such as 30 and 50 mm, were used to analyze the effect of patch size. A continuum damage mechanics‐based model was developed and incorporated into a finite element model interface to estimate the optimum patch size and patch stacking sequence for the impact environment. In the finite element model, the intralaminar failure criteria were implemented using the ABAQUS‐VUMAT user subroutine, and the interlaminar failure criteria were implemented using the inbuilt cohesive contact properties. The 30 mm patch with resin filled in the damaged region performed better than the other combination patches. Also, placing 45° plies toward the outer layer of the patches showed lower damage compared to the patches in which 45° plies were placed at the inner surfaces.Highlights Post‐repair impact behavior of repaired laminates was examined. Impact of patch dimension and resin filling in the damaged area was analyzed. A 3‐D finite element model was developed to optimize patch parameters. Continuum damage mechanics model has been incorporated with VUMAT subroutine. Interface between lamina has been modeled using cohesive contact.

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On the applicability of rate-dependent cohesive zone models in low-velocity impact simulation

Cited by 9 publications

References 34 publications

An integral framework for computational thermo-elastic homogenization of polycrystalline materials

An integral framework for computational thermo-elastic homogenization of polycrystalline materials

High‐velocity impact resistance and energy absorption behavior of Carbon‐Kevlar hybrid composite laminates

A parametric study on patch repaired quasi‐isotropic laminate in high‐velocity impact environment: Experimental and numerical investigation

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