A5094236300- Mechanical Behavior of Composites
- Natural Fiber Reinforced Composites
- Fiber-reinforced polymer composites
- Fisheries and Aquaculture Studies
- Transportation Safety and Impact Analysis
- Mechanical Engineering and Vibrations Research
- Aerospace Engineering and Energy Systems
- Biomimetic flight and propulsion mechanisms
- Cellular and Composite Structures
- Additive Manufacturing and 3D Printing Technologies
- Robotic Path Planning Algorithms
- Multidisciplinary Science and Engineering Research
- Fish Biology and Ecology Studies
"Dunarea de Jos" University of Galati
2024-2025
In this study, the composition and mechanical properties of composites designed for shipbuilding are described. Four different were fabricated by research team, using quadriaxial glass fiber fabric (eight layers in all composites), two resins (the epoxy resin SikaBiresin® CR82 with hardener CH80-2 or polyester Enydyne H 68372 TA Metox-50 W as accelerator), a middle layer Coremat Xi 3 (only applied some composites). The experimental results low-velocity impact tests also discussed, including...
This paper presents research on several factors influencing the stabbing behaviour of stratified panels made aramid fabric Twaron® SRM509 Teijin Aramid BV (Arnhem, The Netherlands). inputs in test campaign were number layers, impact energy, and sample size. Tests performed small samples (130 mm × 130 mm) an Instron® CEAST 9350 drop-tower system (Norwood, MA, USA) larger (400 400 using a installation with same values energy. Knife type S1 was used, geometry recommended NIJ Standard 0115.00...
This paper presents experimental results from three-point bending tests for a composite made of quadriaxial glass fiber fabrics and an epoxy resin. Two composites were tested, one with 8 layers the other 16 layers; both had same matrix (the resin). Tests carried out, using five different test rates 10 mm/min to 1000 mm/min. The following parameters recorded calculated: Young’s modulus, flexural stress, strain, energy, force, all four first peak. data reveal no sensitivity these materials...
Abstract This paper presents the results of puncture tests on panels made Twaron® fabrics SRM509. Tests were done with help Instron 9340 drop-test machine for evaluating influence number layers and striking energy level panel. There tested 16 to 40 levels 24 J, 33 J 43 J. The spike has geometry recommended in NIJ Standard 0115.00 Stab Resistance Body Armor. failure mechanisms are presented at macro micro levels, photos images obtained a scanning electron microscope.
Considering the advantages of using expanded polystyrene (EPS) reinforced with adhesive tape made glass fibers, this paper presents a design and technological solution for functional drone class C1, meaning maximum take-off mass 900 g, tests validating use EPS small UAVs under flight conditions. The selected profile was MH-49, which had chord thickness 10.5%. This demonstrated much lower coefficient pitching moment than that NACA 63215 profile, giving flying-wing UAV superior governability....
Prut river has particular evolutions of its characteristics due to geographical and political position (as border between Romania Moldova), specific climate human activities (agriculture industry). The dependences analyzed mainly on seasons reflect that is not yet dominant in modifying these parameters. water sampling station located near the city Cahul, an emerging as concerning economic, academic social life Republic Moldova. Based survey during years 2018-2022, following conclusions River...