Damage area prediction of laminated composite plates after low velocity impact in ANSYS

Veerappan, Balasubramani; Boopathy, S. Rajendra

doi:10.1109/isco.2013.6481212

Cited by 4 publications

(4 citation statements)

References 13 publications

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“…Post-impact behaviour of unidirectional composite has been widely studied. In particular, the compressive and tensile post-impact behaviour has been investigated [1,2,3,4,5,6]. The residual tensile strength versus impact energy evolves in three steps.…”

Section: Introductionmentioning

confidence: 99%

Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part I: Experimental study

Rogani

Navarro

Marguet

et al. 2019

Composite Structures

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This article concerns the study of post-impact damage propagation in two thin hybrid woven composite laminates loaded in tension. Low velocity normal drop weight impact tests are first performed. Post-impact quasi-static tensile tests are then carried out and monitored by Digital Image Correlation. The influence of the impact energy variation on the fracture surfaces and the residual strength is studied. In order to have a better understanding of the mechanisms involved into the hybrid laminates, four monomaterial sample configurations are also tested. When the damage after impact is barely visible, the sample behaves as a non-impacted sample. When the damage is visible, it propagates whatever the impact energy. The damage grows in the direction perpendicular to the loading for all the monomaterial laminates while two different damage scenarios are observed for the hybrid laminates. The residual strength evolves in three steps depending on the impact energy : first a very low decrease, then an important drop and finally a plateau.

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Section: Introductionmentioning

confidence: 99%

Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part I: Experimental study

Rogani

Navarro

Marguet

et al. 2019

Composite Structures

View full text Add to dashboard Cite

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“…9 Several articles have described the influence of impact energy on the residual strength of material. [10][11][12][13][14][15][16] However, there are fewer studies that relate residual strength with the damage obtained. 9,14 Another aspect that requires further study is how and where impact-related damage occurs, to allow a thorough analysis of the location and size of cracks in the delaminated area.…”

Section: Introductionmentioning

confidence: 99%

Damage tolerance related to the damage area of impacted carbon/epoxy composite laminates

Targino

Cunha

Ribeiro

et al. 2023

Journal of Composite Materials

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This study aimed to analyze the damage tolerance of a carbon/epoxy composite laminate (AS4/8552) impacted at low velocity, relating residual strength values with the impact energy and delaminated area. AS4/8552 laminated plates [0°3/90°/±45°]S were submitted to low-velocity impact tests with three energy levels: 30 J, 45 J and 74 J. Next, the test specimens were analyzed by X-ray computed tomography to check for cracks and delaminations, and compression after impact (CAI) tests conducted to assess their residual strength. The results indicate that above the minimum energy level of low-velocity impact to cause damage, the residual strength of the laminate may be related to the delaminated area.

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“…8 At the same time, low transverse shear stiffness and strength of composite materials lead to composite delamination, which significantly reduces the bending and compression strength. [9][10][11][12] Moreover, a large damage zone affects the ability of the structure to effectively resist the following impacts when the distances between the loading points are small.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study of the behavior of a Glass Fiber Reinforced Plastic plate under oblique impact

Zhikharev

Kudryavtsev

Pavlovskaya

2020

Journal of Composite Materials

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Experimental and numerical studies on the effect of oblique impacts on the ballistic properties of GFRP were carried out. Ballistic tests of specimens using a steel sphere with a diameter of 6.35 mm were performed for inclination angles from the normal of 0, 15, 30, 45, and 60 degrees. Ballistic curves and ballistic limits for each case were obtained, and a function approximating these results was proposed. The size of the delamination area at different angles was also analyzed. The results showed that the most catastrophic failures cases of impact were impacts with angles of 0°–30°. Computational studies of impact loading during oblique impacts were carried out in LS-DYNA using the mesoscale yarn-level model (MSM). Finally, numerically obtained ballistic limits and damaged areas were compared with experimental ones.

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Damage area prediction of laminated composite plates after low velocity impact in ANSYS

Cited by 4 publications

References 13 publications

Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part I: Experimental study

Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part I: Experimental study

Damage tolerance related to the damage area of impacted carbon/epoxy composite laminates

Experimental and numerical study of the behavior of a Glass Fiber Reinforced Plastic plate under oblique impact

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