Compression after impact & vibrational analysis of aramid-basalt/epoxy interply composites under hygrothermal conditions

With the application of composites in various industries viz. aerospace, automobile, defence and marine, it becomes essential to carry out Compression After Impact (CAI) vibration tests study their behavior different environmental conditions. This investigates significance CAI damping characteristics aramid-basalt/epoxy interply under hygrothermal In this examination, laminates were exposed three ageing conditions, namely, ambient (ageing distilled water at 25°C), sub-zero −10°C), humid an chamber maintained 40°C 60% relative humidity) for a duration 180 days. Moisture saturated specimens subjected low velocity impacts (LVI) 10 J 15 energy levels using drop weight impact method. test was carried on post analyze residual compressive strengths. Furthermore, hammer impedance tube also conducted compute properties sound transmission loss (dB) specimens. The results compared with pristine samples effect conditions vibrational properties. indicated that moisture has detrimental strength, natural frequency, Scanning Electron Microscopy (SEM) fractured displayed occurrence types damages such as fiber fractures, delamination, matrix etc primary reason failure