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Article type: Cover
1927 Volume 30 Issue 124 Pages
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Published: August 20, 1927
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Article type: Appendix
1927 Volume 30 Issue 124 Pages
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Article type: Bibliography
1927 Volume 30 Issue 124 Pages
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Article type: Appendix
1927 Volume 30 Issue 124 Pages
2-4
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Otogoro MIYAGI
Article type: Article
1927 Volume 30 Issue 124 Pages
345-364
Published: August 20, 1927
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When a body is acted upon by a dynamical force it deflects in the direction of the force with some velocity accompanied by a retardation, and at the same time this motion of deflection propagates in every direction forming a wave motion with a velocity depending on the nature of the material. Thus the instantaneous motion of deflection at any section of the body depends on the velocity of the applied force and that of the wave propagation. This action produces a serious stress which makes the body fail at a section, the position of which can never be solved by the ordinary theory of the strength of materials without reference to the wave propagation. The dynamical theory of the failure of materials is established theoretically, and its correctness is proved experimentally with cantilevers of paraffin-wax made in different cross-sections and sizes.
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[in Japanese]
Article type: Article
1927 Volume 30 Issue 124 Pages
365-394
Published: August 20, 1927
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The object of this brief communication is to outline the results of photoelastic method for investigating the effect of short spans on the two-dimensional distributions of stress set up in simple beams of uniform rectangular crosssection, supported at extremities and loaded at middle point. As is well known, the common theory of flexure holds true while the span of beam is considerably long compared with the depth of cross-section, and for the beams having short span the distributions of stress differ from the results of ordinary theory and become much more complicated. In this paper it is shown that how the length of short spans effects on the distributions of stress, the limiting value of the span is about at least ten times of the depth of beam in order to follow the common theory, and the dangerous parts in the beam are found not at the bottom of beam at central section but in any respect in the neighbourhood of contact point at which the load is applied.
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IN
Article type: Article
1927 Volume 30 Issue 124 Pages
343a-344a
Published: August 20, 1927
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EM
Article type: Article
1927 Volume 30 Issue 124 Pages
344a-346a
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KE
Article type: Article
1927 Volume 30 Issue 124 Pages
346a-348a
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KE
Article type: Article
1927 Volume 30 Issue 124 Pages
348a-350a
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TH
Article type: Article
1927 Volume 30 Issue 124 Pages
350a-354a
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MY
Article type: Article
1927 Volume 30 Issue 124 Pages
355a-356a
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MY
Article type: Article
1927 Volume 30 Issue 124 Pages
356a-359a
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MY
Article type: Article
1927 Volume 30 Issue 124 Pages
359a-
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MY
Article type: Article
1927 Volume 30 Issue 124 Pages
359a-360a
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MI
Article type: Article
1927 Volume 30 Issue 124 Pages
361a-364a
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KI
Article type: Article
1927 Volume 30 Issue 124 Pages
364a-366a
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KK
Article type: Article
1927 Volume 30 Issue 124 Pages
366a-367a
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HK
Article type: Article
1927 Volume 30 Issue 124 Pages
367a-
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KK
Article type: Article
1927 Volume 30 Issue 124 Pages
367a-368a
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KK
Article type: Article
1927 Volume 30 Issue 124 Pages
368a-369a
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CH
Article type: Article
1927 Volume 30 Issue 124 Pages
369a-371a
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MN
Article type: Article
1927 Volume 30 Issue 124 Pages
371a-373a
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EM
Article type: Article
1927 Volume 30 Issue 124 Pages
373a-374a
Published: August 20, 1927
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Article type: Appendix
1927 Volume 30 Issue 124 Pages
65-72
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Article type: Appendix
1927 Volume 30 Issue 124 Pages
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Article type: Cover
1927 Volume 30 Issue 124 Pages
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Article type: Cover
1927 Volume 30 Issue 124 Pages
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