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Prediction of After-Impact Compressive Strength for Laminated Composites
2006 GSW Proceedings, 2022Comment: 6 ...
Cheng-Shung Wang +2 more
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Modelling damage growth in composites subjected to impact and compression after impact
Composite Structures, 2017Abstract Compression After Impact (CAI) tests are frequently performed to characterize the effect of impact damage on strength of composites. This paper presents an integrated single finite element model that enables analysis of impact damage and CAI without major simplifications and idealizations of damage in composites.
M.R. Abir, T.E. Tay, M. Ridha, H.P. Lee
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Impact and compression after impact behavior of single-stiffener composite panels
2017 8th International Conference on Mechanical and Aerospace Engineering (ICMAE), 2017The purpose of this paper was to investigate the damage tolerance of single-stiffener panels. The impact response and the influence of impact damage on compression behavior were studied. Barely visible impact damage (BVID) was introduced to the stiffener flange tip on the smooth side. By applications of visual inspections and C-scan, massive damage was
Riming Tan +4 more
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Effect of back pressure on impact and compression-after-impact characteristics of composites
Composite Structures, 2011Low velocity impact and compression-after-impact characteristics of a typical plain weave E-glass/epoxy composite are studied experimentally. Atmospheric pressure was maintained on the top surface and different pressures were applied on the rear side during impact experiments.
KULKARNI, MD, GOEL, R, NAIK, NK
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Compression after impact assessment of self-healing CFRP
Composites Part A: Applied Science and Manufacturing, 2009Abstract The development of advanced fibre-reinforced polymer’s (FRP’s) to achieve performance improvements in engineering structures focuses on the exploitation of the excellent specific strength and stiffness that they offer. However, the planar nature of an FRP’s microstructure results in relatively poor performance under impact loading ...
Williams, Gareth J +2 more
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Compression after impact strength of composite sandwich panels
Composite Structures, 2004Abstract Two types of sandwich panels with carbon epoxy skins and aluminium honeycomb core were subjected to low velocity impacts and then the damaged panels tested for their compression-after-impact (CAI) strength. One type of panel was found to be a very robust energy absorber, i.e. a thick-skin thin-core option.
G.A.O. Davies +4 more
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Compression After Impact of Thick Sandwich Composite Structures
54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2013Sandwich composite structures offer benefits over monolithic composites with increased bending stiffness and strength, and reduced structural weight. However, sandwich panels are more susceptible to damage from low energy impact events, such as tool drops, which can result in internal damage barely or even undetectable during visual inspection.
Benjamin Hasseldine +4 more
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Effects of aging on compressive strength of composites after impact
35th Structures, Structural Dynamics, and Materials Conference, 1994Compression after impact (CAI) tests were performed on graphitelbismaleimide quasi-isotropic laminate panels after exposure to elevated temperatures over time in order to investigate the effects of aging on CAI strength. Aging temperatures of 300'F, 350°F, and 400°F with aging times up to 10,000 hours (approximately 14 months) were studied.
Eric Poole, Kuen Lin, Bjorn Backman
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After-Impact Compressive Strength Prediction for Laminated Composites
47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference<BR> 14th AIAA/ASME/AHS Adaptive Structures Conference<BR> 7th, 2006Barely visible impact damage in composite structures is difficult to detect. The predominant failure mechanism is delamination, which is easily detected by C-scan. Using pixel data from C-scan image, coupled with acoustic emission amplitude distribution data from compression after impact testing, and applying it to a back propagation neural network ...
Tuan-Khoi Nguyen +3 more
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Compression after Impact Performance of Composite Stiffened Panels
Advanced Materials Research, 2011Composite stiffened panels are widely used in the modern aircraft structure with the advantages of light weight, structural efficiency and good crack performance. But the stiffened panels have poor performance at thickness direction, especially for low-velocity impact.
Zhe Sun, Fei Xu, Wei Xie, Bo Wang
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