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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
- Transactions of the Japan Society of Mechanical Engineers Series C
- Transactions of the Japan Society of Mechanical Engineers Series B
- Transactions of the Japan Society of Mechanical Engineers Series A
Volume 9 (1943 - 1944･･･
- Issue 37-4 Pages 113-
- Issue 37-3 Pages 53-
- Issue 37-2 Pages 103-
- Issue 37-1 Pages 161-
- Issue 36-4 Pages 89-
- Issue 36-2 Pages 69-
- Issue 36-1 Pages 121-
- Issue 35-4 Pages 27-
- Issue 35-3 Pages 23-
- Issue 35-2 Pages 43-
- Issue 35-1 Pages 33-
- Issue 34-4 Pages 1-
- Issue 34-3 Pages 1-
- Issue 34-2 Pages 1-
- Issue 34-1 Pages 1-
Volume 8 (1942)
- Issue 33-4 Pages 215-
- Issue 33-3 Pages 33-
- Issue 33-2 Pages 63-
- Issue 33-1 Pages 185-
- Issue 32-4 Pages 185-
- Issue 32-3 Pages 21-
- Issue 32-2 Pages 53-
- Issue 32-1 Pages 117-
- Issue 31-4 Pages 101-
- Issue 31-3 Pages 1-
- Issue 31-2 Pages 25-
- Issue 31-1 Pages 43-
- Issue 30-4 Pages 1-
- Issue 30-2 Pages 1-
- Issue 30-1 Pages 1-
Volume 28, Issue 191
Displaying 1-15 of 15 articles from this issue
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Shigeru YONETANI1962 Volume 28 Issue 191 Pages 753-759
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe new method of the measurement of residual stress in a heat treated sphere is explained, consisting of the removal of the outer layer of the sphere by corrosion and the measurement of the mean specific volume of the specimen by the balance. Let θσt and 0σγ be the residual stresses in the circumferential and radial direction respectively and also let υ^-0 and υ^- be the mean specific volume of the specimens before and after the removal of the outer layer from the radius γ0 to γ, then the residual stresses at the radius γ are [numerical formula] where, E : Young's modulus, ν : Poisson's ratio, ν^-(0) : the specific volume of the small elements into which the body is subdivided, and Δ=(ν^-(0) -ν^-0)/3ν^-0. The procedure and actual data of the measurement on a heat treated bearing ball are explained.View full abstractDownload PDF (920K) -
Sadatoshi INADA1962 Volume 28 Issue 191 Pages 759-765
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSTo study of the behaviors of destruction of carbon steel forgings at impact bending, we have designed the impact testing machine of drop hammer type. The drop hammer fell freely without any initial velocity. The ratio out put/input of the amplifier used was 100% through the range of frequency 100∼20000 c/s. In order to study the effect of forging direction on the behaviors of destruction of S55C forgings by impact bending five kinds of test pieces were prepared from forgings. According to our experiments, the directionality of forgings at the impact bending was remarkably strong, compared with the directionality at the static bending. The behaviors of normalized test pieces were superior in the resistance to impact bending to the behaviors of annealed test pieces. The forging directionality by impact bending was diminished by normalizing of test pieces.View full abstractDownload PDF (1118K) -
Sadatoshi INADA1962 Volume 28 Issue 191 Pages 766-774
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESS(i) Effect of Carbon Contents The Carbon Contents of the Carbon Steel Forgings used are from 0.20 to 0.55% inclusive, and their forging ratio about 22. The time required for destruction and energy consumed for destruction are both decreased as the Carbon Contents increased. But the behaviors of the Yield Point have no relation to the carbon contents and hold constant values so far as the impact velocities are constant. (ii) Effect of Forging Ratio We made several kinds of forgings (their forging ratio from 1.0 to 64 inclusive) from the carbon steel ingot (its carbon contents 0.26%). The time required for destruction and energy consumed for destruction are proportional to the forging ratio so far as Forging Ratio ≨ 15.2.View full abstractDownload PDF (1641K) -
Hajimu OKUBO, Sumio MURAKAMI, Kikuo HOSONO1962 Volume 28 Issue 191 Pages 774-783
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSFatigue fracture is studied for the α-brass of different grain size, varied from 0.04mm to 1.5mm. The shearing-strain concentrates intensely at the grain-boundaries for the brass of comparatively large grain size. But with the decrease of grain size, the strain concentration is gradually relieved. Results show that the factor governing the fatigue failure of specimens is not the nominal stress derived from usual theory of elasticity based on the assumptions of homogeneity and isotropy, but is the microscopically maximum shearing-stress occurring in specimens.View full abstractDownload PDF (2967K) -
Minoru KAWAMOTO, Toshinobu SHIBATA, Shun-ichi KODA1962 Volume 28 Issue 191 Pages 784-792
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSOne of the authors previously proposed the "Fatigue Bauschinger Effect" based on a new idea. That is, when the materials subjected to the pulsating load in one direction are easy to deform under the pulsating in a reverse direction, the phenomenon is called as the "Fatigue Bauschinger Effect". In this paper, the deformation behaviours of materials under multiple repeated load, multiple creep test and statically repeated load are dealt with, using 4-6 high brass as material, and compared with the results on carbon steel in the previous report. As the test results, the "Fatigue Bauschinger Effect" was observed at the stress both below and above the torsional yield stress. Although in the previous results on carbon steel, the "Fatigue Bauschinger Effect" was not observed at the stress above the yield stress, in the brass it was distinctly observed there.View full abstractDownload PDF (1020K) -
Shuji TAIRA, Masateru OHNAMI, Hideo MINATA, Tadashi SHIRAISHI1962 Volume 28 Issue 191 Pages 792-799
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn the previous paper the authors discussed the prediction of lifetime for thermal fatigue of heat-resistant metals from the information of cyclic strain fatigue at high temperature basing on the analysis and the experiments. In the present paper, interests were placed on confirming the criterion on prediction of lifetime for thermal fatigue, from the tests of both thermal fatigue and cyclic strain fatigue at elevated temperature on AISI 347 type stainless steel and 2.25Cr-1 Mo steel, and the following conclusions were obtained from the present study ; (1) In order to relate thermal fatigue strength with cyclic strain fatigue strength, an equivalent temperature was introduced as steady temperature at which the material endures the same strain amplitude, for the same lifetime as under thermal stress cycling. The equivalent temperature for AISI 347 type stainless steel was approximately equal to the mean temperature of cyclic temperature and on the other hand, for 2.25Cr-1 Mo steel it was approximately equal to the upper temperature. (2) According to the analysis, material subjected to cyclic thermal stress at different frequencies fractures after the same number of thermal strain cycles. However, from the tests of AISI 347 type stainless steel, it was found that the lifetime at 0.1c/min was slightly smaller than that at 1c/min.View full abstractDownload PDF (998K) -
Shuji TAIRA, Masateru OHNAMI, Tetuo KYOGOKU1962 Volume 28 Issue 191 Pages 800-807
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe test of pulsating tensile thermal stress cycling is necessary in order to know the relationship between the strength in thermal stress cycling and that of creep rupture. This is also necessary to obtain the information of strength of material subjected to both mechanical stress and cyclic thermal stress, from a practical point of view. In the present paper, strength of pulsating tensile thermal stress cycling is discussed in comparison with those of fully reversed thermal stress cycling and of static creep rupture. The following are conclusions from the present study ; (1) Lifetime for pulsating tensile thermal stress cycling is much smaller than the case of completely reversed thermal stress cycling, that is, strain amplitude for pulsating tensile thermal stress cycling is nearly one half the fully reversed thermal stress cycling for the same number of thermal strain cycles to fracture. (2) Lifetime of pulsating tensile thermal stress cycling can be predicted approximately from the test data of static creep rupture, provided that the increase in thermal stress amplitude with the number of thermal strain cycles follows the curve of strain-hardening of the material. (3) The influence of mode of temperature variation on the number or thermal strain cycles to fracture for pulsating thermal stress cycling is not observed.View full abstractDownload PDF (1321K) -
Masamitsu MURAMATSU, Akira ATSUMI1962 Volume 28 Issue 191 Pages 807-812
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSA linear thermoelastic problem is solved for a uniform heat flow disturbed by an infinite row of equal and equally spaced and insulated holes in a plate of indefinite extent. By cancelling the relative displacement caused by the presence of the holes and preserving the continuity across the each interior surface, a solution for the problem is obtained in a form of stress function defined by a series of periodic functions and the stress distributions given by the numerical calculations are shown in figures.View full abstractDownload PDF (616K) -
Osamu TAMATE, Kin'ya ITO1962 Volume 28 Issue 191 Pages 812-818
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn this paper, the problem of a uniformly loaded circular thick plate, clamped along the edge and resting at the center upon a smooth elastic foundation, is treated by applying E. Reissner's theory of bending of plates. The result obtained here contains the corresponding solution for the case of rigid foundation and the classical plate theory prediction in its limiting case. In order to indicate the significance of the effect of the transverse normal stress in addition to the effect of the shear deformation, the stress distribution in the plate, the force field on the constraining surface and the relation between the load and deformation are numerically obtained and compared with the results of the classical plate theory.View full abstractDownload PDF (774K) -
Jiro HOSHINO, Jun-ichi ARAI1962 Volume 28 Issue 191 Pages 819-830
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe authors have carried out statical stress measurements and rotating bending fatigue tests on three model crank shafts (80mm in pin diameter, 45mm in web thickness, 106mm in web breadth) having pin fillet radii of 8.0, 5.0 and 3.0mm respectively. Rotating bending fatigue strengths of plain cylindrical specimens of several sizes taken axially and tangentially from the crank material (0.3% carbon steel) have also studied. The following facts have been revealed by the tests. (1) The nominal fatigue limits of the crank shafts represented in terms of crank-pin (quotient of bending moment devided by the section modulus) are 6.80, 5.50 and 4.25kg/mm2 where the fillet radii are 8.0, 5.0 and 3.0mm respectively. (2) The quotients of fatigue limit of 10φ mm plain cylindrical specimens taken from the carnk web perpendicularly to metal flow of forging devided by the stress concentration factors (the ratio of actual stress at fillet to the nominal stress at crank-pin) are nearly equal to the nominal fatigue limits of the crank shafts represented in terms of crank-pin.View full abstractDownload PDF (1805K) -
Kozo IIZUKA1962 Volume 28 Issue 191 Pages 831-838
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIt is observed by means of a differential transformer how the hammer of D-type Shore hardness tester is caught in the ball clutch at its height of rebound. The observations made under various conditions show that the hammer vibrates up and down at a frequency of 140∼280c/s before it stops at a little lower height than the height of rebound. The difference between the height of rebound and that of stop is dependent on the tester and hammer and is 0.02∼0.11mm. The variation of the difference over a long period is significantly greater than that over a short period, which amounts to the greater part of the dispersion of shore hardness number usually observed. A crude theory on the mechanism of the ball clutch is developed to explain the observed movement of the hammer in it.View full abstractDownload PDF (1215K) -
High Speed Plane Bending Fatigue Test : (2nd Report, On the Speed Dependency of the Endurance Limit)Masami YAMANE1962 Volume 28 Issue 191 Pages 839-847
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn order to investigate the effect of stress reversal speed (or frequency) on the endurance limit, the specimen of carbon steel and nickel-chrome steel were tested with the High Speed Pneumatic Fatigue Testing Machine developed by the author. The test results have shown that the endurance limit has a tendency to increase with frequency in the high frequency range, while it is independent of frequency in the low frequency range. The boundary frequency seemes to become higher according as the internal friction of the material decreases. These phenomena could be explaind rheologically with the visco-elastic model.View full abstractDownload PDF (1275K) -
Akira YAGI1962 Volume 28 Issue 191 Pages 848-858
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSFollowing the Abrasion test of High Manganese Steel under the dry condition which has been reported by the author, an Amsler-type abrasion testing machine, and the condition that is at various slip speeds of 0∼15cm/s, and contact pressures of 50∼90kg/mm2 is used. The test piece of tyre is standard structure steel, containing about 0.7% C, and the other material of High Manganese Steel is water quenched at a temperature of 1050°C. The ideal combination of High Manganese Steel and tyre was researched under the influence of lubrication in which same number of drops of #40 Motor-oil were supplied every day. The result of this research is as follows : 1) "Pitting" of the high manganese steel is less than that of the carbon steel, therefore the wearing amount of the specimen is very little and the effect of lubrication is very remarkable. 2) The fact that the effect of wear prevention on the high manganese steel is satisfactory under the influence of lubrication is supposed to be due to work-hardening.View full abstractDownload PDF (1771K) -
Genrokuro NISHIMURA, Yasuo JIMBO1962 Volume 28 Issue 191 Pages 859-871
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn the old theory of vibration prevention, the earth's crust is treated as an equivalent simple spring-mass system. In this paper, however, the earth's crust is assumed to be an infinite elastic medium, and the problems of insulation and prevention of the vibration of any machine are treated on the basis of the elastic wave propagation theory. Many new results are obtained which cannot be seen in the old theory.View full abstractDownload PDF (1163K) -
Yoshikazu SAWARAGI, Yoshifumi SUNABARA, Takashi SOEDA1962 Volume 28 Issue 191 Pages 872-879
Published: July 25, 1962
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSTo evaluate the probability density function of the response of nonlinear control systems with a stationary random input, an analytical method by means of solving the combined Fokker-Planck equation with the equation of a control system was established by the authors. If a time-invariant nonlinear control system is excited by a suddenly applied stationary random input, the response becomes a non-stationary random time series and the probability density function depends on time. Unfortunately, it is almost impossible to solve the Fokker-Planck equation in the case where the probability density function depends on time. In this paper, an approximate method is presented. The nonlinear transfer characteristic contained in the system is replaced by an equivalent linear one with piecewise linear segments, in the sense of the least square value. The form of probability density function is also replaced by the form of connected Gaussian type probability density function. Under these conceptions, a numerical calculation is carried out. Detail illustrations are shown by several examples.View full abstractDownload PDF (788K)
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