Prediction of Significant Wave Height in Tokyo Bay for Small Fishing Boat

Yamaguchi, Shigeru; Takeda, Seiichi; Ueno, Kimihiko; Wang, Lili

doi:10.9749/jin.112.339

Cited by 1 publication

(4 citation statements)

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“…The information obtained by either a small or a large sample can be compared in terms of the normalized intensive parameter of the internal and external stresses . Figure 3 shows the summary of the recovery strength against the opposing stress measured by using small samples for various kinds of the Fe-Mn-Si based SMA 3,7,14,15,[17][18][19][20] including the results of the stainless steel single crystals. 5) It is noteworthy that the strength changes remarkably depending on the composition and treatment made prior to the step 4 in Table 2.…”

Section: Recovery Strengthmentioning

confidence: 99%

“…Especially, the angle is nearly same for the 1 and 3 mm plates twisted to fracture, whereas it is somewhat smaller for the plate of 5 mm as seen in the partially winded tube shown at the top. Interestingly, the angle is 20 , which corresponds to the maximum strain attainable by shear deformation carried by motion of the Shockley partials in the ! " 0 transformation as mentioned in 2.2.…”

Section: )mentioning

confidence: 99%

“…4,5) Starting with the base composition of Fe-(30-32) mass% Mn-6 mass% Si, 3,6,7) the investigations have been focused on anti-corrosion, 7) training effect, [7][8][9] internal friction, 10) cyclic-deformation 11,12) and strengthening. [13][14][15][16][17][18][19][20] The hybrid types of the Fe-Mn-Si based shape memory alloys (SMA) have been developed and some of the representative compositions are listed in Table 1.…”

Section: Introductionmentioning

confidence: 99%

“…It has also become apparent in the recent studies that the Fe-Mn-Si based SMA can be strengthened further by beating and heating treatments due to introduction of the non-deformable domains called Mn type phase. 19,20) From the industrial point of view, it is attractive that this SMA is mainly composed of the low cost elements of Fe, Mn and Si. Moreover, the Fe-Mn-Si based SMA can be manufactured by the readily available plants for the commercial iron and stainless steels.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Properties of Fe–Mn–Si Based SMA and the Application

2006

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The SME (shape memory effect) in an Fe-Mn-Si based SMA is governed by motion of Shockley partial dislocations which carry the fcc $ hcp phase transformations. The degree of SME is determined by preservation of the partial dislocations whereas the strength is determined by the internal stress opposing against the dislocation motion. The increase in the internal stress tends to induce dislocation reactions which ruin the preservation of the Shockley partials and hence to decrease the degree of SME. Nevertheless, usage of this SMA for construction of a large structural product has recently gained much attention even with sacrifice in the degree of SME. Upon application of this SMA in such a field, the optimum condition has to be searched both in the mechanical properties of the SMA itself and the type of the usage in the sense of deformation mode such as elongation, contraction, bending, twisting and so on. In this paper, the dislocation motion responsible for a good SME with high strength will be discussed on the ground of the basic knowledge of the dislocation generation, the motion and the reactions.

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