TY - JOUR TT - Mapping with the Image Processing Method of Damage Regions with Respect Composite Laminates Subjected to Low Velocity AU - Kara, Memduh PY - 2017 DA - February JF - European Journal of Engineering and Natural Sciences PB - CNR Çevre WT - DergiPark SN - 2458-8156 SP - 154 EP - 160 VL - 2 IS - 1 KW - Image processing method KW - Low-velocity impact KW - Failure analysis N2 - In this study , uni-directionalyreinforced laminates that arranged e-glass / epoxy composite samples in theform [ + 45 / -45 / 90/0 ]s and [ + 45 / -45 / 90/0 ]2swas applied low-velocity impact tests at impact energies of 10, 20 and  30 J has been obtained 8 and 16 laminatedsample. Low-velocity impact tests were performed with the drop weight testdevice. Low-velocity impact damage was created on the samples depending on thedifferent impact energies as a result of experiments conducted withhemispherical various impactor. The impactor mass was 6.350 kg. Digital imagingprocess method was applied images of the samples subjected to impact damage anddamage maps for each damage zone were extracted. Also, change graph of damagearea depending on the impact energies has been omitted. Changing damage zoneswere extracted. Also, change graph of damage area depending on the impactenergies has been omitted. CR - M. Uyaner and M. Kara, “Dynamic response of laminated composites subjected to low-velocity impact.” Journal of Composite Materials, 2007, 41(24), p. 2877-2896. CR - M. Uyaner, M. Kara and N. Ataberk, “Impact behavior of e-glass/epoxy laminated composite”, 7th. International Fracture Conference, Kocaeli, Turkey, 2005, p:813-821. CR - M. V. Hosur, C. R. L. Murthy, T. S. Ramamurthy and A. Shet, “Estimation of impact-induced damage in CFRR laminates through ultrasonic imaging”, NDT & E International, 1998, 31(5), p. 359-374. CR - K. Srinivasan, W. C. Jackson, B. T. Smith and J. A. Hinkley, “Characterization of damage modes in impacted thermoset and thermoplastic composites”, Journal of reinforced plastics and composites, 1992, 11(10), p. 1111-1126. CR - R. J. Chester and G. Clark, “Modelling of impact damage features in graphite/epoxy laminates”, In Damage detection in composite materials. ASTM International, 1992 CR - F. Aymerich, A. Bucchioni and P. Priolo, “Impact behaviour of quasi-isotropic graphite-peek laminates”, In Key Engineering Materials, Trans Tech Publications, 1997, vol. 144, p. 63-74 CR - F. Aymerich and S. Meili, “Ultrasonic evaluation of matrix damage in impacted composite laminates”, Composites Part B: Engineering, 2000, 31(1), p. 1-6 CR - J. Summerscales (Ed.), “Non-destructive testing of fibre-reinforced plastics composites”, Springer Science & Business Media, Vol. 2, 1990 CR - X. E. Gros, “Revıew of NDT technıques for detectıon of low-energy ımpacts ın carbon reınforcements”, Sampe Journal, 1995, 31(2), p. 29-34. CR - S. L. Gao and J. K. Kim, “Three-dimensional characterization of impact damage in CFRPs”, In Key Engineering Materials, Trans Tech Publications, 1997, vol. 141, p. 35-54 CR - M. Uyaner and M. Kara, “Experimental study of the impact behavior of laminated composites stricken by sharp impactors”, Science and Engineering of Composite Materials, 2012, vol:3, p. 307-313 CR - D. Phillips, "Image Processing in C", 2000, Second Edition, ISBN 0-13-104548-2 CR - MathWorks web site. [Online.] Available: http://www.mathworks.com, 2016 CR - Wikipedia web site. [Online]. Available: https://en.wikipedia.org/wiki/Color_mapping, 2016 CR - S. Abrate, “Impact on composite structures” Cambridge university press, 2005 UR - https://dergipark.org.tr/en/pub/ejens/issue//292539 L1 - https://dergipark.org.tr/en/download/article-file/276814 ER -