Literature Review : Dynamic Mechanical Properties of Advanced Composite Materials and Structures: a Review

1987 ◽  
Vol 19 (7) ◽  
pp. 13-22 ◽  
Author(s):  
R.F. Gibson
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Literature Review ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Advanced Composite ◽  
Advanced Composite Materials

scholarly journals Advanced superhard composite materials with extremely improved mechanical strength by interfacial segregation of dilute dopants

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Tomohiro Nishi ◽  
Katsuyuki Matsunaga ◽  
Takeshi Mitsuoka ◽  
Yasuyuki Okimura ◽  
Yusuke Katsu
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Structural Transition ◽  
Bending Strength ◽  
Single Layer ◽  
Interfacial Strength ◽  
Advanced Composite ◽  
Atomic Segregation ◽  
Advanced Composite Materials ◽  
Interfacial Structures

AbstractControl of heterointerfaces in advanced composite materials is of scientific and industrial importance, because their interfacial structures and properties often determine overall performance and reliability of the materials. Here distinct improvement of mechanical properties of alumina-matrix tungsten-carbide composites, which is expected for cutting-tool application for aerospace industries, is achieved via interfacial atomic segregation. It is found that only a small amount of Zr addition is unexpectedly effective to significantly increase their mechanical properties, and especially their bending strength reaches values far beyond those of conventional superhard composite materials. Atomic-resolution STEM observations show that doped Zr atoms are preferentially located only at interfaces between Al2O3 and WC grains, forming atomic segregation layers. DFT calculations indicate favorable thermodynamic stability of the interfacial Zr segregation due to structural transition at the interface. Moreover, theoretical works of separation demonstrate remarkable increase in interfacial strength through the interfacial structural transition, which strongly supports reinforcement of the interfaces by single-layer Zr segregation.

Dynamic mechanical behavior of composite materials reinforced by graphene and huntite minerals

2021 ◽  
Vol 63 (12) ◽  
pp. 1090-1096
Author(s):  
Dilek Atilla ◽  
Binnur Gören
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Storage Modulus ◽  
Loss Modulus ◽  
Damping Ratio ◽  
Weight Percent ◽  
Dynamic Mechanical Properties ◽  
Grain Structure ◽  
Dynamic Mechanical ◽  
Pure Resin

Abstract The aim of this study is to investigate the dynamic mechanical properties of composite materials reinforced by mineral experimentally. Graphene and huntite minerals were added to epoxy resin at different weight ratios (wt.-%) as 0.5 weight percent, 1 weight percent and 3 weight percent, to examine the effect of mineral types and percentages on the resulting dynamic mechanical properties. In addition, the effect of non-layered huntite unlike graphene, with a nano-sized grain structure, was investigated. Thus, glass transition temperature (Tg), storage modulus (E’), loss modulus (E”) and damping ratio (tan δ) values were determined and compared. Moreover, a tensile test was performed in order to explain the relation between stress and strain. It was seen that adding different minerals caused different results according to types and proportions. In general, adding minerals to the pure resin increased the storage modulus and loss modulus, whereas the damping ratio (tan δ) decreased compared to the pure resin.

Sign in / Sign up

Export Citation Format

Share Document