Enhanced Evaluation of the Low-Velocity Impact Response of Composite Plates

AIAA Journal ◽  
2004 ◽  
Vol 42 (10) ◽  
pp. 2143-2152 ◽  
Author(s):  
Paolo Feraboli ◽  
Keith T. Kedward
Keyword(s):  
Composite Plates ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

Low-velocity impact response in composite plates embedding shape memory alloy wires

2012 ◽  
Vol 33 (5) ◽  
pp. 655-664 ◽  
Author(s):  
Silvio Pappadà ◽  
Rocco Rametta ◽  
Alessandro Largo ◽  
Alfonso Maffezzoli
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Composite Plates ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

Control of Low-Velocity Impact Response in Composite Plates

2000 ◽  
Vol 6 (3) ◽  
pp. 429-447 ◽  
Author(s):  
Ahmet S. Yigit ◽  
Andreas P. Christoforou
Keyword(s):  
Composite Plates ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

Effects of Absorbed Moisture Content on the Impact Response of Specially-Orthotropic Composite Plates

2019 ◽  
Author(s):  
Furqan Ahmad ◽  
Fethi Abbassi ◽  
Sajjad Miran
Keyword(s):  
Moisture Content ◽  
Composite Plates ◽  
Peak Force ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Constant Weight ◽  
Velocity Impact ◽  
Moisture Contents ◽  
The Impact

Abstract This paper addresses the hygroscopic effects on the impact response of specially-orthotropic carbon fiber reinforced polymer composite plates under low-velocity impact loading. The material used in this study is Toray T800/3900 which is consist of carbon fibers and epoxy resin. For different percentage of moisture content by weight in the composite plates, low-velocity impact tests were done by using the 8-ply unidirectional [UD] and cross-ply [CP] composite plates with newly designed mini-drop tower testing machine. To study the hygroscopic effects, specimens were impacted by constant weight of impactor (3.44 Kg) with fixed impact height of 0.70 m corresponding to 23.62 J impact energy. The experiments were carried out on plates with dimension of 125 mm × 125 mm × 1.5 mm for simply supported boundary conditions. All UD composite plates were broken into two parts, but the impactor bounces back after hitting the top layer of the CP composite plate for all conditions. The strength of the UD composite plates decreased with increase of moisture contents, but with the increased of moisture contents, a small change was observed in the peak force, time to peak force values and absorbed energy for the CP composite plates. The large size damage areas were observed for wet plates as compared to dry plates. Absorbed moisture contents also have effect on the impactor velocity and impactor displacement.

An experimental investigation on the low velocity impact response of composite plates repaired by VARIM and hand lay-up processes

2011 ◽  
Vol 93 (3) ◽  
pp. 1178-1186 ◽  
Author(s):  
Cesim Atas ◽  
Yalın Akgun ◽  
Olgay Dagdelen ◽  
Bulent M. Icten ◽  
Mehmet Sarikanat
Keyword(s):  
Experimental Investigation ◽  
Composite Plates ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

Low velocity impact response of composites and fiber metal laminates with open holes

2016 ◽  
Vol 51 (6) ◽  
pp. 797-810 ◽  
Author(s):  
C Rubio-González ◽  
E José-Trujillo ◽  
F Chávez ◽  
A Ruiz
Keyword(s):  
Composite Plates ◽  
Impact Response ◽  
Woven Fabric ◽  
Low Velocity Impact ◽  
Critical Parameters ◽  
Low Velocity ◽  
Fiber Metal Laminates ◽  
Velocity Impact ◽  
Fiber Metal Laminate ◽  
Fiber Metal

Low-velocity impact response of glass/epoxy composite plates and fiber metal laminates with and without holes is investigated. The critical parameters that affect the delamination characteristics of laminates are impact energy, holes separation distance, type and directionality of fibers. An experimental investigation has been conducted to evaluate the effect of the presence of holes and the incorporation of aluminum layers in the extent of delamination. The extent of damage introduced during the impact event was observed on images obtained from C-scan non-destructive ultrasonic technique. Results indicate that fiber metal laminate made with aluminum layers exhibits an improved dynamic response in comparison with that of conventional laminates. The beneficial effect of using aluminum layers to reduce the extent of delamination produced by impact loading especially on laminates with holes is demonstrated. Furthermore, fiber metal laminates show better load carrying capability than conventional composite plates. The better response of fiber metal laminate with multidirectional fabric in comparison with fiber metal laminate with woven fabric is also examined. These results may be useful to better design the location of holes in composite structures.

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