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Latest Solid mechanics Stories

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2009-03-24 09:52:28

Metallic glass that's stronger and lasts longer The normal structure of metals is crystalline. Glass, on the other hand, is amorphous. But it's possible to make amorphous forms of metal, metallic glasses, which can be remarkably strong, having many properties equal to or better than their crystalline metal cousins. The catch is that bulk metallic glasses are highly susceptible to fatigue, a severe problem for their use as structural materials. Now researchers at the U.S. Department of...

2009-03-23 07:35:00

GARDEN CITY, Mich., March 23 /PRNewswire/ -- Consider how these outlooks could free you from stress: Things change if you change the way you look at them. Problems, most of the times, are only are in our head. "Thus I Became Stress Free, Oh Really?," a new book by Balram Joshi (published by iUniverse), can improve your outlook and capability to manage your stress and improve your productivity and happiness. Written from the inspiration Joshi experienced from learning and practicing very...

2009-01-26 14:11:37

U.S. scientists say they have created stretchable electronics that allow extreme bending and straining without a reduction in performance. University of Miami Professor Jizhou Song, Professor John Rogers at the University of Illinois and Northwestern University Professor Yonggang Huang said they developed a new design for stretchable electronics that can be wrapped around complex shapes, without a reduction in electronic function. The researchers said the new strategy is based on...

2008-12-12 11:42:24

A U.S. researcher suggests those with high working memory and math ability may be those most affected by test stress. The study, published in Current Directions in Psychological Science, finds the subjects with the greatest capacity for math success were the most likely to choke under pressure. Sian Beilock of the University of Chicago said working memory -- useful for solving math problems -- is diminished in stressful situations. Beilock says working memory, also known as short-term...

4085183468400df60b946133a8fc0f231
2008-11-21 10:38:38

The Naval Research Laboratory (NRL) is part of an international team of scientists that is learning more about how cracks form in brittle materials. The team used both computer modeling and experimentation to investigate how cracks grow at low speeds in silicon. This information has potential applications in the development of a variety of materials ranging from armor to machine parts. The research team published their findings in the October 30th edition of Nature. Using the computer...

b57faa5ff118a9930869303e3edb58b41
2008-10-20 14:00:00

Because they are riddled with defects, bulk crystalline materials never achieve their ideal strength; nanocrystals, on the other hand, are so small there's no room for defects. ("Nano" is short for nanometer, a billionth of a meter.) Yet while nanocrystalline materials may approach ideal strength in their resistance to stress, most nanostructures have shown only a limited ability to withstand large internal strains before they fail. Overcoming this limitation could lead to great advances in...

2008-10-02 03:00:20

By Phillion, A B Lee, P D; Maire, E; Cockcroft, S L Semisolid tensile testing combined with X-ray microtomography (XMT) was used to characterize the development of internal damage as a function of strain in an aluminum-magnesium alloy, AA5182. Novel techniques were developed to allow the quantification of both the size evolution and orientation of the damage to determine mechanisms controlling the early stage growth and localization. During the initial stages of semisolid deformation, it...

2008-09-13 03:00:11

By Fukuta, Satoshi Asada, Fumihito; Sasaki, Yasutoshi Abstract The impact of holes drilled into air-dried wood specimens was examined in a closed heating system on the deformation fixation process of compressed wood. Holes were drilled into wood to improve steam permeability, and therein, improve manufacturing efficiency in comparison to conventional processes. The impact of drilled holes on the permeability of water in wood was also examined. The deformations of the wood specimens in the...

2008-09-05 03:00:20

By Majumdar, Shrabani Bhattacharjee, D; Ray, K K The micromechanism of fatigue damage in an interstitial-free (IF) steel sheet has been studied using fully reversed stress amplitudes (Deltasigma/2). The stress-life (S-N) curve of the steel sheet has been generated, together with a series of interrupted fatigue tests at each of the chosen Deltasigma/2, to study the progress of fatigue damage in terms of the initiation, growth, and coalescence of the fatigue cracks on the surfaces of the...

2008-09-03 03:00:16

By Kundu, S Chatterjee, S; Olson, D; Mishra, B In the present study, copper was used as an intermediate material in diffusion bonding between titanium and stainless steel. The process was carried out in the temperature range of 850 [degrees]C to 1000 [degrees]C for 60 minutes and at 900 [degrees]C for 30 to 150 minutes under the compressive stress of 3 MPa in a vacuum. The effects of temperature and time on the microstructure of Ti | Cu | stainless steel diffusion-bonded joints were...


Latest Solid mechanics Reference Libraries

Computational Mechanics (journal)
2012-06-04 15:29:14

Computational Mechanics is a scientific journal founded in 1986 and published monthly by Springer. The journal covers all aspects of computational mechanics and reports original research in the field. It focuses on areas that involve the rational application of mechanics, mathematics, and numerical methods in the practice of modern engineering. Areas covered include solid and structural mechanics, multi-body system dynamics, constitutive modeling, inelastic and finite deformation response,...

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Word of the Day
snash
  • To talk saucily.
  • Insolent, opprobrious language; impertinent abuse.
This word is Scots in origin and probably imitative.