Numerical modelling of the compression-after-impact performance of a composite sandwich panel

James, Chris T; Watson, Andrew; Cunningham, Paul

doi:10.1177/1099636215576475

Cited by 8 publications

(4 citation statements)

References 25 publications

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“…As a result of the compressive nature of loading experienced by the cylinders, it was expected that SLIMC1 and SLIMC2 would be the most influential parameters among all stress limit factors. Correspondingly, values of SLIMT1, SLIMT2, and SLIMS were chosen based on the software developer's recommendations provided in [15], whereas the values of SLIMC1 and SLIMC2 were obtained from the range of 0.1-1.0 via calibration with experimental data, as will be discussed in Section 5.2. The upper bound of this range (SLIMC1 = SLIMC2 = 1.0) corresponds to the developer's recommendation.…”

Section: Slimsmentioning

confidence: 99%

“…A particular value from the specified range was chosen via calibration with experimental data, as will be discussed in Section 5. In addition, the condition for CN > CNmin must be ensured (see [15]), where CN min = (1/2) × (NFLS 2 )/(G_Ic). This condition is satisfied for the listed set of parameters of the delamination model.…”

Section: Property Value or Range Rationalementioning

confidence: 99%

“…For the post-impact load-bearing capacity, most of the reported studies were focused on modeling the compression after impact (CAI) behavior of flat composite panels. Examples of this work include CAI simulations of pre-loaded composite plates [12], variable angle tow laminates [13], and flat sandwich panels [14,15].…”

Section: Introductionmentioning

confidence: 99%

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Prediction of Load-Bearing Capacity of Composite Parts with Low-Velocity Impact Damage: Identification of Intra- and Inter-Ply Constitutive Models

et al. 2020

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Assessments of residual load-carrying capacity are often conducted for composite structural components that have received impact damage. The availability of a verified simulation methodology can provide significant cost savings when such assessments are required. To support the development of a reliable and accurate simulation methodology, this study investigated the predictive capabilities of a stacked solid-shell finite element model of a cylindrical composite component with a damage mechanics-based description of the intra-ply material response and a cohesive contact model used for simulation of the inter-ply behavior. Identification of material properties for the model was conducted through mechanical characterization. Special attention was paid to understanding the influence of non-physical parameters of the intra- and inter-ply material models on predicting compressive failure load of damaged composite cylinders. Calibration of the model conducted using the response surface methodology allowed for identifying rational values of the non-physical parameters. The results of simulations with the identified and calibrated finite element model showed reasonable correlation with experimental data in terms of the predicted failure loads and post-impact and post-failure damage modes. The investigated modeling technique can be recommended for evaluating the residual load-bearing capacity of flat and curved composite parts with impact damage working under the action of compressive loads.

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Section: Slimsmentioning

confidence: 99%

Section: Property Value or Range Rationalementioning

confidence: 99%

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Prediction of Load-Bearing Capacity of Composite Parts with Low-Velocity Impact Damage: Identification of Intra- and Inter-Ply Constitutive Models

et al. 2020

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“…Analytical models were also proposed to simulate the initiation and propagation of impact damages [13][14][15]. In addition, finite element models with complex structural details were used to study the impact damage resistance as well as damage tolerance of composite sandwich structures [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Compression after impact behavior of titanium honeycomb sandwich structures

Zhao

Xie

et al. 2017

Jnl of Sandwich Structures & Materials

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Titanium honeycomb sandwich structures are gradually used in several newly developed aircrafts in China. During the manufacturing process and aircraft service life, low-velocity impacts from foreign objects (typically stones, tools and hails, etc.), would quite likely happen and could not be completely avoided. In order to evaluate the influence of low-velocity impact damage on titanium honeycomb sandwich structures, unidirectional in-plane compression tests on both intact and impact damaged sandwich panels were conducted to obtain their failure modes and compressive failure strength. Test results showed that the low-velocity impact damage could cause the change in failure modes and a 9% to 15% decrease in the compressive failure strength. Different impact energy levels showed a limited influence on the compressive failure strength. Numerical analysis was conducted to study the compression after impact behavior of titanium sandwich panels. Parametric finite element models that contained all the geometric and the structural details of honeycomb core cells, as well as the indentation and the crushed core region, were developed in the analysis. The numerical results successfully exhibited the failure process of the intact and impact damaged titanium sandwich panels subjected to unidirectional in-plane compression, similar to what observed in the tests. The predicted compressive failure strength also agreed very well with the test data.

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Multi-point impact behavior and the relationship between CAI strength and DBIP of PMI foam sandwich structures

ZHU,

ZHENG,

SUN

et al. 2024

Chinese Journal of Aeronautics

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Numerical modelling of the compression-after-impact performance of a composite sandwich panel

Cited by 8 publications

References 25 publications

Prediction of Load-Bearing Capacity of Composite Parts with Low-Velocity Impact Damage: Identification of Intra- and Inter-Ply Constitutive Models

Prediction of Load-Bearing Capacity of Composite Parts with Low-Velocity Impact Damage: Identification of Intra- and Inter-Ply Constitutive Models

Compression after impact behavior of titanium honeycomb sandwich structures

Multi-point impact behavior and the relationship between CAI strength and DBIP of PMI foam sandwich structures

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