Experimental Analysis of Low Velocity Impact on Carbon Fiber Reinforced Polymer (CFRP) Composite Panels

Seamone, Andrew; Waas, Anthony M.; Davidson, Paul

doi:10.2514/6.2022-0409

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…However, the resulting layered structure presents complex, progressive damage that challenges optimized design, prediction of structural reliability, and informed inspection/non-destructive evaluation. This progressive damage occurs externally and internally (non-visible) under design loads and overloads, and given the thickness of the aluminum substrate in many applications, bending effects must be considered [21,[29][30][31][32]. Damage progresses as matrix cracking, fiber fracture, delamination within the composite, disbond at the composite/metal interface, and plastic deformation.…”

Section: Composite Overlay Backgroundmentioning

confidence: 99%

Reduced-Dimension Surrogate Modeling to Characterize the Damage Tolerance of Composite/Metal Structures

Arndt,

Crusenberry,

Heng

et al. 2023

Modelling

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Complex engineering models are typically computationally demanding and defined by a high-dimensional parameter space challenging the comprehensive exploration of parameter effects and design optimization. To overcome this curse of dimensionality and to minimize computational resource requirements, this research demonstrates a user-friendly approach to formulating a reduced-dimension surrogate model that represents a high-dimensional, high-fidelity source model. This approach was developed specifically for a non-expert using commercially available tools. In this approach, the complex physical behavior of the high-fidelity source model is separated into individual, interacting physical behaviors. A separate reduced-dimension surrogate model is created for each behavior and then all are summed to formulate the reduced-dimension surrogate model representing the source model. In addition to a substantial reduction in computational resources and comparable accuracy, this method also provides a characterization of each individual behavior providing additional insight into the source model behavior. The approach encompasses experimental testing, finite element analysis, surrogate modeling, and sensitivity analysis and is demonstrated by formulating a reduced-dimension surrogate model for the damage tolerance of an aluminum plate reinforced with a co-cured bonded E-glass/epoxy composite laminate under four-point bending. It is concluded that this problem is difficult to characterize and breaking the problem into interacting mechanisms leads to improved information on influential parameters and efficient reduced-dimension surrogate modeling. The disbond damage at the interface between the resin and metal proved the most difficult mechanism for reduced-dimension surrogate modeling as it is only engaged in a small subspace of the full parameter space. A binary function was successful in engaging this damage mechanism when applicable based on the values of the most influential parameters.

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Section: Composite Overlay Backgroundmentioning

confidence: 99%

Reduced-Dimension Surrogate Modeling to Characterize the Damage Tolerance of Composite/Metal Structures

Arndt,

Crusenberry,

Heng

et al. 2023

Modelling

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“…Composite/metal hybrids offer many advantages but have a complex progressive damage that makes it difficult to optimize the design. The progressive damage occurs internally during designed loads or overloads from bending [5,11,12] and low-velocity impact [13,14]. This damage progresses as matrix cracking, fiber breakage (fracture or buckling), delamination within the composite, or disbond at the composite/metal interface.…”

Section: Introductionmentioning

confidence: 99%

Nondeterministic Parameter Space Characterization of the Damage Tolerance of a Composite/Metal Structure

Arndt

TerMaath

2022

AIAA SCITECH 2022 Forum

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An integrated experimental, computational, and non-deterministic approach is demonstrated to predict the damage tolerance of an aluminum plate reinforced with a cocured bonded quasi-isotropic E-glass/epoxy composite overlay and to determine the most sensitive material parameters and their ranges of influence on the damage tolerance of the hybrid system. To simulate the complex progressive damage in the repaired structure, a high fidelity three-dimensional finite element model is developed and validated using four-point bend testing to investigate potential damage mechanisms. A surrogate model is then generated to explore the complex parameter space of this model. Global sensitivity analysis and uncertainty quantification are performed for non-deterministic analysis to characterize the energy absorption capability of the patched structure relative to these influential design properties. Additionally, correlating the data quality of the material parameters with the sensitivity analysis results provides practical guidelines for model improvement and the design optimization of the patched structure.

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Low velocity impact and compressive response after impact of thin carbon fiber composite panels

Seamone

Davidson

Waas

et al. 2022

International Journal of Solids and Structures

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Experimental Analysis of Low Velocity Impact on Carbon Fiber Reinforced Polymer (CFRP) Composite Panels

Cited by 7 publications

References 8 publications

Reduced-Dimension Surrogate Modeling to Characterize the Damage Tolerance of Composite/Metal Structures

Reduced-Dimension Surrogate Modeling to Characterize the Damage Tolerance of Composite/Metal Structures

Nondeterministic Parameter Space Characterization of the Damage Tolerance of a Composite/Metal Structure

Low velocity impact and compressive response after impact of thin carbon fiber composite panels

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