Sökning: L773:0013 7944 OR L773:1873 7315 >
Orientation effects...
Orientation effects on the fracture of pond (S1) ice
-
- Stehn, Lars (författare)
- Luleå tekniska universitet,Byggkonstruktion och -produktion
-
DeFranco, Samuel J (författare)
-
Dempsey, John P. (författare)
-
(creator_code:org_t)
- 1995
- 1995
- Engelska.
-
Ingår i: Engineering Fracture Mechanics. - 0013-7944 .- 1873-7315. ; 51:3, s. 431-435
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The influence of structural anisotropy on the fracture toughness of S1 type freshwater ice was investigated by fabricating and testing three different fracture geometries from a single ice core. The ice was tested at - 16°C using the Chevron Edge Notch Round Bar in Bending (CENRBB), a Chevron Notched Tension (CNT) specimen and the Semi-Circular Bend (SCB) specimen. By this procedure, a complete anisotropic apparent fracture toughness (KQ) characterization is possible from one core. The specimens can be prepared with very little machining. This approach is therefore suitable for both field and, as in this work, laboratory studies. Three models are presented for computation of the stress-intensity-factor expressions for these specimens. There is a wide scatter in the KQ results and the apparent fracture toughness was higher for cracks perpendicular, than for cracks parallel, to the c-axis and the columnar grains. Possible explanations for this ambiguous behavior are discussed in terms of the microstructural influences and specimen size effects.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Building Technologies (hsv//eng)
Nyckelord
- Träbyggnad
- Timber Structures
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas