Properties of fiber reinforced plastics under static and dynamic loading conditions

2017 ◽  
Vol 57 (7) ◽  
pp. 693-696 ◽  
Author(s):  
Natalia Korneeva ◽  
Vladimir Kudinov ◽  
Igor Krylov ◽  
Vladimir Mamonov
Keyword(s):  
Dynamic Loading ◽  
Loading Conditions ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Dynamic Loading Conditions ◽  
Static And Dynamic Loading

Tensile and Fracture Characterization of PETI-5 and IM7/PETI-5 Graphite/Epoxy Composites Under Quasi-Static and Dynamic Loading Conditions

2011 ◽  
Vol 133 (2) ◽  
Author(s):  
Dongyeon Lee ◽  
Hareesh V. Tippur ◽  
Brian J. Jensen ◽  
Philip B. Bogert
Keyword(s):  
Dynamic Loading ◽  
Dynamic Fracture ◽  
Fracture Behavior ◽  
Matrix Material ◽  
Image Correlation ◽  
Dynamic Crack ◽  
Loading Conditions ◽  
Fiber Reinforced ◽  
Dynamic Loading Conditions ◽  
Static And Dynamic Loading

Tensile and fracture responses of the phenylethynyl terminated imide oligomer (PETI-5) are studied. Since this polymer is a candidate aerospace structural adhesive as well as a matrix material in composite systems, neat as well as fiber reinforced forms of PETI-5 are studied under static and dynamic loading conditions. A split-Hopkinson tension bar apparatus is used for performing tensile tests on dogbone specimens. The dynamic fracture tests are carried out using a drop tower in conjunction with 2D image correlation method and high-speed digital photography on edge cracked specimens in three-point bend configuration. A toughened neat epoxy system, Hexcel 3900, is also studied to provide a baseline comparison for neat PETI-5 system. The tensile stress-strain responses show PETI-5 to have excellent mechanical characteristics under quasi-static and dynamic loading conditions when compared with 3900. Fracture behavior of PETI-5 under quasi-static and impact loading conditions also shows superiority relative to 3900. The dynamic fracture behavior of a PETI-5 based graphite fiber reinforced composite, IM7/PETI-5, is also studied and the results are comparatively evaluated relative to the ones corresponding to a more common aerospace composite system, T800/3900-2 graphite/epoxy. Once again, the IM7/PETI-5 system shows excellent fracture performance in terms of dynamic crack initiation and growth behaviors.

Testing of a tri-instrumented-treadmill unit for kinetic analysis of locomotion tasks in static and dynamic loading conditions

2007 ◽  
Vol 29 (3) ◽  
pp. 404-411 ◽  
Author(s):  
Gabriele Paolini ◽  
Ugo Della Croce ◽  
Patrick O. Riley ◽  
Frederic K. Newton ◽  
D. Casey Kerrigan
Keyword(s):  
Kinetic Analysis ◽  
Dynamic Loading ◽  
Loading Conditions ◽  
Dynamic Loading Conditions ◽  
Static And Dynamic Loading
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