Dynamic Fracture in Disordered Media

MRS Bulletin ◽  
2000 ◽  
Vol 25 (5) ◽  
pp. 46-50 ◽  
Author(s):  
Robin L. B. Selinger ◽  
John M. Corbett
Keyword(s):  
Mechanical Properties ◽  
Single Crystals ◽  
Dynamic Fracture ◽  
Local Variation ◽  
Fiber Composites ◽  
Disordered Media ◽  
Disordered Materials ◽  
Everyday Experience ◽  
Polycrystalline Solids

While it is possible to carry out fracture experiments in single crystals, in everyday experience fracture occurs in heterogeneous and often disordered materials. Tear a piece of paper, and the resulting ragged edge shows evidence of the local variation in the paper's mechanical properties. One might expect the same behavior in fracture of other disordered materials such as polycrystalline solids, fiber composites, and concrete.

Improved static and dynamic mechanical properties of multiscale bucky paper interleaved Kevlar fiber composites

Carbon ◽  
2019 ◽  
Vol 152 ◽  
pp. 631-642 ◽  
Author(s):  
Sushant Sharma ◽  
S.R. Dhakate ◽  
Abhijit Majumdar ◽  
Bhanu Pratap Singh
Keyword(s):  
Mechanical Properties ◽  
Fiber Composites ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Kevlar Fiber ◽  
Bucky Paper

Synthesis and evaluation of mechanical properties for coconut fiber composites-A review

2021 ◽  
Author(s):  
Nutenki Shravan Kumar ◽  
Tanya Buddi ◽  
A. Anitha Lakshmi ◽  
K.V. Durga Rajesh
Keyword(s):  
Mechanical Properties ◽  
Fiber Composites ◽  
Coconut Fiber

scholarly journals A- or X-site mixture on mechanical properties of APbX3 perovskite single crystals

APL Materials ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 041112
Author(s):  
Lin Ma ◽  
Wanpeng Li ◽  
Kaixiang Yang ◽  
Jianjun Bi ◽  
Jicun Feng ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Single Crystals

scholarly journals Valorization of Invasive Plants from Macaronesia as Filler Materials in the Production of Natural Fiber Composites by Rotational Molding

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2220
Author(s):  
Zaida Ortega ◽  
Francisco Romero ◽  
Rubén Paz ◽  
Luis Suárez ◽  
Antonio Nizardo Benítez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Invasive Plant ◽  
Natural Fiber ◽  
Ricinus Communis ◽  
Local Level ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Filler Materials ◽  
Natural Fiber Composites ◽  
Rotational Molding

This paper compares the mechanical properties of different natural fiber composites produced by rotational molding as a way of waste valorization from campaigns to control invasive plant species in Macaronesia. Rotomolded parts produced with polymeric matrices (polyethylene) and filled with up to 20% by weight of cellulosic fibers obtained from Arundo donax L., Pennisetum setaceum, and Ricinus communis plants were characterized in terms of tensile, flexural, and impact strength. It was found that the sieving of natural fibers allowed for their introduction in higher loadings, from 10 (for un-sieved material) to 20%; fiber size greatly affected the mechanical properties of the final parts, although some combinations were proven not to reduce the mechanical properties of the neat resin. This study is a first approach to the valorization of residues obtained from periodic campaigns of the control of invasive species performed by public authorities, usually at the local level. It is important to highlight that the main objective of this research did not focus on economically profitable activity; instead, it was focused on the reduction of wastes to be disposed from ecosystem maintenance actions and the investment of potential income into preservation policies.

Elastic moduli and the mechanical properties of stishovite single crystals

2002 ◽  
Vol 45 (4) ◽  
pp. 447-448 ◽  
Author(s):  
Vadim V Brazhkin ◽  
Markos Grimsditch ◽  
I Guedes ◽  
Nikolai A Bendeliani ◽  
T I Dyuzheva ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Single Crystals ◽  
Elastic Moduli

Fabrication of Bi-Te Based Thermoelectric Semiconductors by Using Hybrid Powders

2005 ◽  
Vol 297-300 ◽  
pp. 875-880
Author(s):  
Cheol Ho Lim ◽  
Ki Tae Kim ◽  
Yong Hwan Kim ◽  
Dong Choul Cho ◽  
Young Sup Lee ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Single Crystals ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Figure Of Merit ◽  
Bending Strength ◽  
Mixing Ratio ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
P Type

P-type Bi0.5Sb1.5Te3 compounds doped with 3wt% Te were fabricated by spark plasma sintering and their mechanical and thermoelectric properties were investigated. The sintered compounds with the bending strength of more than 50MPa and the figure-of-merit 2.9×10-3/K were obtained by controlling the mixing ratio of large powders (PL) and small powders (PS). Compared with the conventionally prepared single crystal thermoelectric materials, the bending strength was increased up to more than three times and the figure-of-merit Z was similar those of single crystals. It is expected that the mechanical properties could be improved by using hybrid powders without degradation of thermoelectric properties.

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