Effect of impact damage positions on the buckling and post-buckling behaviors of stiffened composite panel

Abstract Effect of impact damage positions on the buckling and post-buckling behaviors of stiffened composite panels under axial compression were investigated in this paper. Barely visible impact damage (BVID) was introduced to three different positions on the smooth sides at impact energy 50 J. Impact crater depths and damage areas were measured and relationships between the two parameters were affirmed. Compression after impact (CAI) experiments were conducted both on the damaged and undamaged specimens to achieve the effect of impact damage on buckling and post-buckling behaviors. The results show that only local buckling in skin bay occurs without global buckling appearing for both damaged and undamaged specimens, which contains four half waves. The buckling load of damaged and undamaged specimens varies little. However, the failure loads of damaged specimens decrease to different extent according to their impact positions, with a maximum decrease of 10% compared to the undamaged specimens. Failure modes of the damaged and undamaged specimens are similar and complex, which contain the debonding of skin to stiffeners, breaking of stiffeners as well as tearing and splitting of skin.

[1]  Aniello Riccio,et al.  Delamination buckling and growth phenomena in stiffened composite panels under compression. Part I: An experimental study , 2014 .

[2]  Aniello Riccio,et al.  Inter-laminar and intra-laminar damage evolution in composite panels with skin-stringer debonding under compression , 2016 .

[3]  Yu Feng,et al.  Effect of hygrothermal condition on buckling and post-buckling performance of CCF300/5228A aero composite stiffened panel under axial compression , 2015 .

[4]  Lorenzo Iannucci,et al.  A progressive failure model for mesh-size-independent FE analysis of composite laminates subject to low-velocity impact damage , 2012 .

[5]  Yu Feng,et al.  Investigation on tension–tension fatigue performances and reliability fatigue life of T700/MTM46 composite laminates , 2016 .

[6]  Shuhua Zhu,et al.  Effect of the stiffener stiffness on the buckling and post-buckling behavior of stiffened composite panels – Experimental investigation , 2015 .

[7]  Richard Degenhardt,et al.  Design and analysis of stiffened composite panels including post-buckling and collapse , 2008 .

[8]  Richard Degenhardt,et al.  COCOMAT—improved material exploitation of composite airframe structures by accurate simulation of postbuckling and collapse , 2006 .

[9]  Richard Degenhardt,et al.  Cyclic buckling tests of pre-damaged CFRP stringer stiffened panels , 2010 .

[10]  A. Aktaş,et al.  Impact and post impact (CAI) behavior of stitched woven–knit hybrid composites , 2014 .

[11]  A. Riccio,et al.  A robust numerical approach for the simulation of skin–stringer debonding growth in stiffened composite panels under compression , 2015 .

[12]  Christophe Bouvet,et al.  Influence of matrix toughness and ductility on the compression-after-impact behavior of woven-ply thermoplastic- and thermosetting-composites: A comparative study , 2014 .

[13]  Raimund Rolfes,et al.  POSICOSS—improved postbuckling simulation for design of fibre composite stiffened fuselage structures , 2006 .

[14]  Francesco Caputo,et al.  Impact behaviour of omega stiffened composite panels , 2016 .

[15]  Richard Degenhardt,et al.  Buckling and post buckling investigation of stringer stiffened CFRP panels under in-plane loading - experimental investigations , 2012 .

[16]  Richard Degenhardt,et al.  Future structural stability design for composite space and airframe structures , 2014 .

[17]  Leonardo Lecce,et al.  Simulation of low velocity impact on composite laminates with progressive failure analysis , 2013 .

[18]  Jenn‐Ming Yang,et al.  Compression behavior of stitched stiffened panel with a clearly visible stiffener impact damage , 2003 .

[19]  T. Tay,et al.  Progressive damage modeling of open-hole composite laminates under compression , 2015 .

[20]  Agostino Lanciotti,et al.  Post-buckling behaviour of flat stiffened composite panels: Experiments vs. analysis , 2012 .

[21]  Landon F. Wallace,et al.  Low velocity impact properties of carbon nanofibers integrated carbon fiber/epoxy hybrid composites manufactured by OOA–VBO process , 2015 .

[22]  G.A.O. Davies,et al.  Impact damage prediction and failure analysis of heavily loaded, blade-stiffened composite wing panels , 1999 .

[23]  Z. Yue,et al.  Experimental and numerical analysis for the post-buckling behavior of stiffened composite panels with impact damage , 2015 .

[25]  Francesco Caputo,et al.  Modelling the simulation of impact induced damage onset and evolution in composites , 2014 .

[26]  Rolf Zimmermann,et al.  Buckling and postbuckling of stringer stiffened fibre composite curved panels – Tests and computations , 2006 .

[27]  Richard Degenhardt,et al.  Experiments to Detect Damage Progression in Axially Compressed CFRP Panels under Cyclic Loading , 2008 .

[28]  Richard Degenhardt,et al.  EXPERIMENTS ON BUCKLING AND POSTBUCKLING OF THIN-WALLED CFRP STRUCTURES USING ADVANCED MEASUREMENT SYSTEMS , 2007 .

[29]  Hyunbum Park,et al.  Experimental study on barely visible impact damage and visible impact damage for repair of small aircraft composite structure , 2013 .

[30]  Christos Kassapoglou,et al.  An efficient approach to determine compression after impact strength of quasi-isotropic composite laminates , 2014 .

[31]  M. Kulkarni,et al.  Effect of back pressure on impact and compression-after-impact characteristics of composites , 2011 .

[32]  Javid Bayandor,et al.  Compression and post-buckling damage growth and collapse analysis of flat composite stiffened panels , 2008 .

[33]  Brian Falzon,et al.  Predicting low-velocity impact damage on a stiffened composite panel , 2010 .