Engineering Research Express, cilt.8, sa.6, ss.1-13, 2026 (SCI-Expanded)
Thisstudyexperimentallyinvestigatestheinfluenceoffiberorientationanglesonthelow-velocity impact(LVI)responseofE-glasswovenfabric-reinforcedepoxycomposites.Fourdistinct configurations—[0/90/0/ 90 ] s , [0/45/90/ 45 ] s , [0/30/60/ 90 ] s , [0/15/30/45/60/75/90]orientations—werefabricatedbyvaryingthelayerorientationsfrom90°downto15°.Themechanical performancewasevaluatedbasedoncontactforce,strikervelocity,energyabsorptioncapacity,and damagemechanismsunderimpactenergiesrangingfrom10Jto50J.Theresultsindicatethat decreasingtheorientationanglefrom90°to30°yieldsasubstantialimprovementinimpact resistance andenergydissipation.However,furtherreductionsbeyond30°didnotyieldstatistically significantperformancegains.Thesefindingsrevealanoptimalplyorientationrangeforenhancing theLVIperformanceofwovenglass/epoxycompositesandprovidepracticalguidancefordesigning impact-resistantcompositelaminates.