Dynamic response of circular composite laminates subjected to underwater impulsive loading

Abstract The dynamic response and failures of carbon/epoxy composite laminates subjected to underwater impulsive loading are investigated experimentally. The effect of impulsive intensity and thickness of laminates on dynamic deformation, failure modes, and associated mechanisms is identified and quantified respectively. The plates are subjected to underwater impulsive loads of different intensities with a lab-scaled underwater explosive simulator. 3D DIC is employed to capture the dynamic response in terms of response rate, mid-span deflection, and deflection-profile history during the elastic response process, followed by a series of postmortem non-destructive investigation and microscopic examinations to examine the failure modes and its distributions, and analyse the associated mechanisms. The results show that the intensity of impulse, thickness and failure of panels affect the dynamic response of laminate plates significantly. The non-surface failure has very limited influences on the tendency of the deflection-impulse relationship, and the local failure on the surface occurring later than the delamination and fiber fracture through the thickness of laminates. The blast resistance of composite laminates is not enhanced continuously with the increasing thickness due to the inconsistent changes of failure modes. With similar areal mass, meanwhile, composite laminates perform better blast-resistant performance than that of the metallic structures.

[1]  Genevieve Langdon,et al.  The response of sandwich structures with composite face sheets and polymer foam cores to air-blast loading: Preliminary experiments , 2012 .

[2]  P. Gaudenzi,et al.  Effects of curvature on high-velocity impact resistance of thin woven fabric composite targets , 2017 .

[3]  Wei Huang,et al.  Investigation on manufacturing and mechanical behavior of all-composite sandwich structure with Y-shaped cores , 2018 .

[4]  Arun Shukla,et al.  Dynamic response and damage evolution in composite materials subjected to underwater explosive loading: An experimental and computational study , 2010 .

[5]  Wei Zhang,et al.  An Experimental Investigation of Water-Filled Tank Subjected to Horizontal High Speed Impact , 2015 .

[6]  Nathalie Toso-Pentecote,et al.  High velocity impact on preloaded composite plates , 2014 .

[7]  J. Pernas-Sánchez,et al.  Experimental analysis of normal and oblique high velocity impacts on carbon/epoxy tape laminates , 2014 .

[8]  Wei Zhang,et al.  Dynamic response of aluminum corrugated sandwich subjected to underwater impulsive loading: Experiment and numerical modeling , 2017 .

[9]  N. Gupta,et al.  Influence of fiber orientation and thickness on the response of glass/epoxy composites subjected to impact loading , 2014 .

[10]  Vikram Deshpande,et al.  The resistance of metallic plates to localized impulse , 2008 .

[11]  Min Zhou,et al.  High-speed digital imaging and computational modeling of dynamic failure in composite structures subjected to underwater impulsive loads , 2015 .

[12]  F. Chang,et al.  A Progressive Damage Model for Laminated Composites Containing Stress Concentrations , 1987 .

[13]  A. Schiffer,et al.  The response of circular composite plates to underwater blast: Experiments and modelling , 2015 .

[14]  Vikram Deshpande,et al.  The Underwater Blast Resistance of Metallic Sandwich Beams With Prismatic Lattice Cores , 2007 .

[15]  Andreas Schiffer,et al.  The dynamic response of composite plates to underwater blast: Theoretical and numerical modelling , 2014 .

[16]  Horacio Dante Espinosa,et al.  A Novel Fluid Structure Interaction Experiment to Investigate Deformation of Structural Elements Subjected to Impulsive Loading , 2006 .

[17]  K. Graff.  Wave Motion in Elastic Solids , 1975 .

[18]  N. Fleck,et al.  The dynamic response of composite sandwich beams to transverse impact , 2007 .

[19]  Wei Zhang,et al.  Dynamic failure of clamped metallic circular plates subjected to underwater impulsive loads , 2016 .

[20]  Amin Bassiri Nia,et al.  Dynamic failure of basalt/epoxy laminates under blast—Experimental observation , 2017 .

[21]  Horacio Dante Espinosa,et al.  Failure mechanisms in composite panels subjected to underwater impulsive loads , 2011 .

[22]  Jinjie Zhou.  Pipeline Section Time Reversal Inspection Method with Ultrasonic Guided Waves , 2017 .

[23]  N. Fleck,et al.  An underwater shock simulator , 2006, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[24]  Z. Hashin.  Analysis of stiffness reduction of cracked cross-ply laminates , 1986 .

[25]  G. Nurick,et al.  The air-blast response of sandwich panels with composite face sheets and polymer foam cores: Experiments and predictions , 2013 .

[26]  Min Zhou,et al.  Novel experimental and 3D multiphysics computational framework for analyzing deformation and failure of composite laminates subjected to water blasts , 2017 .

[27]  N. Fleck,et al.  The Resistance of Clamped Sandwich Beams to Shock Loading , 2004 .

[28]  Wei Zhang,et al.  Dynamic failure of honeycomb-core sandwich structures subjected to underwater impulsive loads , 2016 .