Zobrazeno 51 - 60
of 662
pro vyhledávání: '"Fracture (geology)"'
Autor:
Wada Takuma, Yoichi Tamiya
Publikováno v:
Journal of the Society of Materials Science, Japan. 58:311-316
Fatigue crack initiation life (FCI life) of stress concentration can be predicted according to compare between elastic-plastic strain at there and total strain-fatigue life curve (Δet-Nf curve) of smooth specimen. Elastic-plastic strain is estimated
Publikováno v:
Journal of the Society of Materials Science, Japan. 58:627-634
In this paper, fatigue tests and finite element method (FEM) analyses are carried out on spot welded joints of mild steel (270MPa class) and ultra-high strength steel (980MPa class) in order to investigate the influence of strength level of base stee
Publikováno v:
Journal of the Society of Materials Science, Japan. 58:235-242
Extruded magnesium alloy shows a mechanical anisotropy caused by the particular deformation characteristics of the hexagonal crystal structure. Cyclic deformation behavior and fatigue life of the extruded AZ61 and AZ80 alloys were investigated in the
Autor:
Tomonaga Okabe, Koji Yamashita
Publikováno v:
Journal of the Society of Materials Science, Japan. 57:448-453
In order to improve the fracture strain of fiber reinforced ceramic composites, it is necessary to understand how the fiber/matrix interface affects the fracture strain of the composite. Therefore, in this paper, FEM simulation using a cohesive zone
Publikováno v:
Journal of the Society of Materials Science, Japan. 57:134-139
Ferritic stainless steels such as Fe-2.25Cr-1Mo-1Zr, Fe-25Cr-1Zr and Fe-13Cr-8Ni-2Mo-1Zr with ultra-fine grain size of 0.2μm were prepared by hot extrusion after mechanical alloying. Axial fatigue life tests for plane round bar specimens of these st
Autor:
Kazutoshi Okuyama, Kazuyuki Torii
Publikováno v:
Journal of the Society of Materials Science, Japan. 57:981-986
A large number of bridge piers in Japan, which were mostly constructed in the 1970s or 1980s, are suffering from serious damages caused by alkali-silica reaction (ASR). The concrete using reactive andesite successively expanded for more than 30years,
Publikováno v:
Journal of the Society of Materials Science, Japan. 57:913-920
Publikováno v:
Journal of the Society of Materials Science, Japan. 57:648-653
The effect of static and fatigue loading on the residual stress induced by laser peening has been investigated on the aluminum alloy JIS A2024-T3. X-ray diffraction was applied to laser-peened samples to measure surface residual stress before and aft
Publikováno v:
Journal of the Society of Materials Science, Japan. 57:474-480
This paper discussed the fracture mechanism of diamond like carbon (DLC) film subjected to contact loading. The DLC films with over 10μm thick were deposited onto stainless steel (SUS304) by Radio Frequency (RF) plasma-based ion implantation method
Publikováno v:
Journal of the Society of Materials Science, Japan. 57:374-379
The fracture behavior of a brittle polymer, polymethyl methacrylate(PMMA) resin, under static and impact tensile loadings was studied using single-edge-cracked specimens. The impact load and displacement were measured with a Piezo sensor and a high-s