Evaluation of temperature effects on low velocity impact damage in composite sandwich panels with polymeric foam cores

Yang, Peng; Shams, Seyedmohammad; Slay, Alexandra; Brokate, Bruce; Elhajjar, Rani

doi:10.1016/j.compstruct.2015.03.065

Cited by 72 publications

(37 citation statements)

References 22 publications

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“…Finally, the analyses revealed that using the aforementioned core configuration noticeably enhances FRP panels' behaviour under blast loads. Yang et al [14] investigated the response of closed-cell PU foam core composite panels with woven carbon/epoxy laminate face sheets under low-velocity impacts. They introduced a numerical modelling for the composite panels, including continuum damage, cohesive layers and crushable foam model with isotropic hardening.…”

Section: Figure3mentioning

confidence: 99%

Structural Performance of Polyurethane Foam-Filled Building Composite Panels: A State-Of-The-Art

et al. 2019

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Composite panels with polyurethane (PU) foam-core and facing materials, such as gypsum, engineered wood or some composite materials, are being used as structural members in building construction. This paper reviews and summarises major research developments, and provides an updated review of references on the structural performance of foam-filled building composite panels from 1998 to 2017. The review revealed that previous studies on the structural performance of foam-filled building composite panels could be categorised into five themes; namely, energy absorption and dynamic behaviour; bending and shear behaviour, edgewise and flatwise compressive/tensile behaviour; delamination/deboning issues; and finally some miscellaneous issues. These categories comprise approximately 30%, 40%, 11%, 11% and 8% of related studies over the last two decades, respectively. Also, over the past five years, the number of relevant studies has increased by ~400% relative to the previous similar periods, indicating the attention and focus of researchers to the importance of the structural performance of foam-filled composite panels.

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Section: Figure3mentioning

confidence: 99%

Structural Performance of Polyurethane Foam-Filled Building Composite Panels: A State-Of-The-Art

et al. 2019

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“…But due to the impact and material fatigue, various barely visible damages can appear [3,4]. The damages seriously degrade the reliability of CFRP structure and affect structure safety [5,6]. Due to above reasons, damages should be timely located.…”

Section: Introductionmentioning

confidence: 99%

Acoustic emission localization based on FBG sensing network and SVR algorithm

Sai

Zhao²,

Hou

et al. 2017

Photonic Sens

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Abstract:In practical application, carbon fiber reinforced plastics (CFRP) structures are easy to appear all sorts of invisible damages. So the damages should be timely located and detected for the safety of CFPR structures. In this paper, an acoustic emission (AE) localization system based on fiber Bragg grating (FBG) sensing network and support vector regression (SVR) is proposed for damage localization. AE signals, which are caused by damage, are acquired by high speed FBG interrogation. According to the Shannon wavelet transform, time differences between AE signals are extracted for localization algorithm based on SVR. According to the SVR model, the coordinate of AE source can be accurately predicted without wave velocity. The FBG system and localization algorithm are verified on a 500 mm500 mm2 mm CFRP plate. The experimental results show that the average error of localization system is 2.8 mm and the training time is 0.07 s.

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“…In the practical application of composite structure, impact can cause various barely visible damages, such as matrix cracking, ply delamination, and fiber fracture [3,4]. The damages seriously degrade the security of composite structure [5,6]. Therefore, impact event should be timely localized for the damage detection.…”

Section: Introductionmentioning

confidence: 99%

Low velocity impact localization system using FBG array and MVDR beamforming algorithm

et al. 2015

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This paper proposes an impact localization system based on the fiber Bragg grating (FBG) array and minimum variance distortionless response (MVDR) beamforming algorithm. The linear FBG array, which contains seven FBG sensors, is used for detecting impact signals. Morlet wavelet transform is applied for extracting narrow-band signals of impact signals. According to the MVDR beamforming algorithm, the system realizes single-impact and multi-impact localizations. The localization system is verified on a 500 mm×500 mm×2 mm carbon fiber reinforced polymer (CFRP) plate for single-impact and multi-impact localizations. The average locating error and the maximum locating error are 6.8 mm and 9.9 mm, respectively.

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Evaluation of temperature effects on low velocity impact damage in composite sandwich panels with polymeric foam cores

Cited by 72 publications

References 22 publications

Structural Performance of Polyurethane Foam-Filled Building Composite Panels: A State-Of-The-Art

Structural Performance of Polyurethane Foam-Filled Building Composite Panels: A State-Of-The-Art

Acoustic emission localization based on FBG sensing network and SVR algorithm

Low velocity impact localization system using FBG array and MVDR beamforming algorithm

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