Characterization of Delamination Onset and Growth in a Composite Laminate

2009 ◽  
pp. 140-140-28 ◽  
Author(s):  
TK O'Brien
Keyword(s):  
Composite Laminate

Low-Velocity Impact Response Characterization of a Hybrid Titanium Composite Laminate

Materials ◽  
2005 ◽  
Author(s):  
S. Bernhardt ◽  
M. Ramulu ◽  
A. S. Kobayashi
Keyword(s):  
Composite Laminate ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Heating Process ◽  
Low Velocity ◽  
Velocity Impact ◽  
Modes Of Failure ◽  
Graphite Fibers ◽  
The Impact

The low-velocity impact response of a hybrid titanium composite laminate (HTCL), known as TiGr, was compared to that of graphite/epoxy composite. The TiGr material comprised of two outer plies of titanium foil surrounding a composite core. The composite core was PIXA-M (a high temperature thermoplastic) reinforced by IM-6 graphite fibers and consolidated by an induction heating process. The impact response of TiGr was characterized by two modes of failure which differed by failure or non-failure in tension of the bottom titanium ply. The ductility of titanium caused buckling by yielding whereas the brittle adjacent composite ply lead to fracture. The maximum failure force of the material correlated well with the previously reported static flexural data, and the material outperformed the commonly used graphite/epoxy.

scholarly journals Investigation of the Mechanical Properties of Hybrid Carbon-Hemp Laminated Composites Used as Thermal Insulation for Different Industrial Applications

2014 ◽  
Vol 6 ◽  
pp. 829426 ◽  
Author(s):  
M. L. Scutaru ◽  
M. Baba
Keyword(s):  
Mechanical Properties ◽  
Hybrid Composite ◽  
Composite Laminate ◽  
Industrial Applications ◽  
Impact Testing ◽  
Impact Behavior ◽  
Low Velocity ◽  
Hemp Fabric ◽  
The Impact

Carbon-hemp composite laminate provides good thermal properties. For this reason this type of material is presently being used for various applications like insulator for airplanes, spaceships, nuclear reactors, and so forth. Unfortunately their mechanical properties are less studied. These characteristics are very important since they should be guaranteed also for important mechanical stress in addition to the thermal one. The present paper presents a study regarding the impact testing of some hybrid composite laminate panels based on polyester resin reinforced with both carbon and hemp fabric. The effects of different impact speeds on the mechanical behavior of these panels have been analyzed. The paper lays stress on the characterization of this hybrid composite laminate regarding the impact behavior of these panels by dropping a weight with low velocity.

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