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Article type: Cover
1926 Volume 29 Issue 116 Pages
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Published: 1926
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Article type: Appendix
1926 Volume 29 Issue 116 Pages
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Article type: Bibliography
1926 Volume 29 Issue 116 Pages
Misc1-
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Article type: Appendix
1926 Volume 29 Issue 116 Pages
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Toshio NISHIHARA
Article type: Article
1926 Volume 29 Issue 116 Pages
711-745
Published: 1926
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Bending beyond the elastic limit causes after stresses which increase with the curveture of the elastic line. First under certain assumptions is found the relation between the bending moment and the curveture of the elastic line for a straight beam and then the distribution and the amount of the after stresses are calculated. Next the expression for the elastic line and the permanent deflection of the center line are found. Finally it is shown, that the elastic limit determined from tension tests will not coincide with that from bending tests.
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[in Japanese]
Article type: Article
1926 Volume 29 Issue 116 Pages
746-782
Published: 1926
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Hardness is an important property of a material, but it has no specified physical meaning. Many authorites give different definitions to it conventionally, but it should be noticed that the relative values among the hardness numbers of different materials are more important than their absolute values, The following two important proposals as to the definition and the scale of hardness are given. (i) The hardness of a material is the resistance to the compressive deformation due to a given tool. (ii) The hardness no is defined as the amount of energy obsorbed plastically by a unit volume of the indentation produced by a tool. Therefore we have the following equation. -II=Wp/Vp where H=Hardness no, Wp=Energy absorbed plastically in kg-mm, Vp=Plastic indentation volume in mm^3. Wp is measured by the area multiplied by a certain scale constant in the load indentation diagram, and Vp is the volume of the indentation after the load removed. The chief objects of the researches are as follow : (i) to find the relation between the hardness no. and the load applied, and (ii) the relation between the hardness no. and the diameter of the ball used. With the definition and scale of hardness as above mentioned we shall study the two relations described above.
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[in Japanese]
Article type: Article
1926 Volume 29 Issue 116 Pages
783-795
Published: 1926
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Article type: Appendix
1926 Volume 29 Issue 116 Pages
App2-
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IN
Article type: Article
1926 Volume 29 Issue 116 Pages
455-456
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IN
Article type: Article
1926 Volume 29 Issue 116 Pages
456-458
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EM
Article type: Article
1926 Volume 29 Issue 116 Pages
458-462
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EM
Article type: Article
1926 Volume 29 Issue 116 Pages
462-465
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BK
Article type: Article
1926 Volume 29 Issue 116 Pages
466-467
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BK
Article type: Article
1926 Volume 29 Issue 116 Pages
467-468
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HS
Article type: Article
1926 Volume 29 Issue 116 Pages
468-477
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KE
Article type: Article
1926 Volume 29 Issue 116 Pages
477-479
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KE
Article type: Article
1926 Volume 29 Issue 116 Pages
479-
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KT
Article type: Article
1926 Volume 29 Issue 116 Pages
480-483
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KE
Article type: Article
1926 Volume 29 Issue 116 Pages
484-486
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TH
Article type: Article
1926 Volume 29 Issue 116 Pages
486-
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MY
Article type: Article
1926 Volume 29 Issue 116 Pages
486-488
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MY
Article type: Article
1926 Volume 29 Issue 116 Pages
489-490
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TH
Article type: Article
1926 Volume 29 Issue 116 Pages
490-492
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TH
Article type: Article
1926 Volume 29 Issue 116 Pages
492-493
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MI
Article type: Article
1926 Volume 29 Issue 116 Pages
493-498
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KI
Article type: Article
1926 Volume 29 Issue 116 Pages
498-
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KI
Article type: Article
1926 Volume 29 Issue 116 Pages
499-
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SS
Article type: Article
1926 Volume 29 Issue 116 Pages
499-502
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TK
Article type: Article
1926 Volume 29 Issue 116 Pages
502-504
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TK
Article type: Article
1926 Volume 29 Issue 116 Pages
504-507
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KK
Article type: Article
1926 Volume 29 Issue 116 Pages
507-509
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CH
Article type: Article
1926 Volume 29 Issue 116 Pages
509-513
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MN
Article type: Article
1926 Volume 29 Issue 116 Pages
513-515
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BK
Article type: Article
1926 Volume 29 Issue 116 Pages
516-
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KI
Article type: Article
1926 Volume 29 Issue 116 Pages
516-
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Article type: Appendix
1926 Volume 29 Issue 116 Pages
83-
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