Internal structure influence on the impact strength and dynamic fracture toughness of hybrid polymer matrix composites with integrated elastomer interlayers

2021 ◽  
Vol 258 ◽  
pp. 113375
Author(s):  
T. Sadowski ◽  
P. Golewski ◽  
E. Craciun
Keyword(s):  
Fracture Toughness ◽  
Impact Strength ◽  
Internal Structure ◽  
Dynamic Fracture ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Dynamic Fracture Toughness ◽  
Matrix Composites ◽  
Hybrid Polymer ◽  
The Impact

The Effects of a Compatibilizer for Improving Mechanical Properties on Polymer Matrix Composites

2021 ◽  
Vol 877 ◽  
pp. 3-8
Author(s):  
Prathumrat Nuyang ◽  
Atiwat Wiriya-Amornchai ◽  
Watthanaphon Cheewawuttipong
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Young’S Modulus ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Fine Powder ◽  
Matrix Composites ◽  
Elongation At Break ◽  
The Impact

The effect of compatibilizer agent was studied when adding Aluminum fine powder (Al) to reinforce in Polypropylene (PP) by compared between polymer matrix composites (PMCs) and PMCs added Polypropylene graft maleic anhydride (PP-g-MAH).The average particle size of the aluminum fine powder was around 75 μm filled in polypropylene with different proportions of 2.5, 5, 7.5 and 10wt%. PMCs were prepared using the internal mixer. The results found that when the amount of aluminum fine powder increased, the mechanical properties had changed, i.e., tensile strength, and Young’s Modulus increased, while the impact strength and elongation at break decreased. But, when adding compatibilizer 1wt% it was found that the trend of tensile strength, and Young’s Modulus increased that compared with non-compatibilizer, but the impact strength and elongation at break decreased. The part of the morphology of PMCs with non-compatibilizer was found that the particle of aluminum fine powder dispersed in the matrix phase, but there were many microvoids between filler and matrix. But, PMCs with compatibilizer caused the microvoids between filler and matrix to be reduced.

Characterization of Fracture Toughness of Hybrid MMCs the Short Fiber Reinforced Metal Matrix Composites

2003 ◽  
Vol 17 (08n09) ◽  
pp. 1827-1832
Author(s):  
Moon Sik Han ◽  
Jung Il Song
Keyword(s):  
Fracture Toughness ◽  
Metal Matrix Composites ◽  
Dynamic Fracture ◽  
Metal Matrix ◽  
Matrix Alloy ◽  
Short Fiber ◽  
Dynamic Fracture Toughness ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
The Matrix

Evaluation of fracture toughness of short fiber reinforced metal matrix composites (MMCs) becomes important for the application as structural materials. Therefore, in this study static and dynamic fracture toughness of MMCs manufactured by squeeze casting process were investigated. A number of MMCs have been tested with various matrix alloys, volume fractions, and specifically types of reinforcements. It was found that static and dynamic fracture toughness of metal matrix composites was remarkably decreased by the addition of ceramic reinforcements. Dynamic fracture toughness slightly decreased compared with static fracture toughness because of the effect of dynamic velocity under impact loading. The toughness of ceramic reinforced MMCs is controlled by a complexity interaction between the matrix alloy and reinforcement. Important properties which influence toughness include the type of reinforcement (its physical form, size), volume fraction and combination of reinforcement, and the matrix alloy. And notch fracture toughness of MMCs for simple evaluation was also discussed.

Effect of salt water conditioning on novel fiber metal laminates for marine applications

2018 ◽  
Vol 233 (8) ◽  
pp. 1542-1554 ◽  
Author(s):  
M Najafi ◽  
A Darvizeh ◽  
R Ansari
Keyword(s):  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Salt Water ◽  
Matrix Composites ◽  
Fiber Metal Laminates ◽  
Glass Fiber Reinforced ◽  
Fiber Metal Laminate ◽  
Fiber Metal ◽  
Marine Applications ◽  
The Impact

One of the issues with the widespread use of polymer matrix composites in marine applications is their high susceptibility to environmental degradation, particularly hygrothermal conditions. Therefore, the present research intends to contribute to the better protection of the marine polymer matrix composites through the introduction of a newly developed fiber metal laminate for marine applications. This type of fiber metal laminate consists of a marine aluminum alloy of 5083 alternating with glass fiber reinforced epoxy composite layers. In order to evaluate the characterization of the environmental durability of this novel material, the specimens made of fiber metal laminates as well as commercial woven glass–epoxy composites were exposed to hygrothermal aging and hygrothermal cycling in boiling salt water. Then, to study the structural degradation caused by exposure to salt water, the mechanical properties of fiber metal laminate and woven glass–epoxy specimens under three-point bending and impact loading were evaluated. Results show that exposure to the saline environment generally decreased the flexural strength of woven glass–epoxy and fiber metal laminate specimens, whereas a smaller deterioration in flexural stiffness of both laminate types was found. Moreover, it was observed that the hygrothermal conditioning in salt water did not affect significantly the impact properties of both the fiber metal laminate and woven glass–epoxy specimens as compared to the flexural properties.

Sign in / Sign up

Export Citation Format

Share Document