研究者詳細 - 黒島　義人

論文 - 黒島　義人

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繰返し純せん断負荷下における炭素鋼薄膜の微小き裂の進展挙動

山田純平, 黒島義人

M&M材料力学カンファレンス ( 一般社団法人日本機械学会 ) 2017 ( 0 ) OS0534 2017年01月

担当区分：責任著者記述言語：日本語掲載種別：研究論文（研究会，シンポジウム資料等）

<p>Even if metal thin film is the same material, it does not know that different mechanical characteristics form a bulk material are shown, and general fatigue behavior showing a bulk material does not necessarily appear. The present condition is that research of the fatigue behavior in the repetition shear load of a metal thin film is not made compared with the thing of load direction axis and bending. From studies of thin films in the cyclic loading to date, a crack with a locally slip in S10C occurs. The cause such crack occurs, the strain in the ferrite by applying the cyclic shear loading occurs, pearlite is considered to crack been concentrated deformed part that is sandwiched between the pearlite harder than ferrite because no deformation occurs. In addition, with respect to micro fatigue crack propagation in the repeated shear load of the bulk material, it was confirmed that the stiff cracks were inhibited by hard pearlite crystal grains, but the propagating cracks also progressed into the pearlite grains. Therefore, in this study, fatigue cracks are generated and developed by applying a repeated shearing load to the thin film material of S10C, and the influence of the observation / microstructure of its progress process was examined. As a result, it was confirmed that the pearlite crystal grains of the thin film material prevented the crack growth as well as the bulk material, and the propagating cracks also progressed into the pearlite crystal grains.</p>

DOI： 10.1299/jsmemm.2017.os0534

CiNii Article

CiNii Research

その他リンク： https://www.jstage.jst.go.jp/article/jsmemm/2017/0/2017_OS0534/_pdf

変性 PC を用いた GFRP の疲労特性と損傷機構の考察査読有り

安藤誠人, 佐藤匡将, 黒島義人, 野田尚昭, 竹田英俊

日本機械学会論文集 815 ( 80 ) 1 - 10 2014年07月

ポリジメチルシロキサンを共重合したポリカーボネートの衝撃特性と時間－温度換算則の適用査読有り

安藤誠人, 野田尚昭, 黒島義人, 石川康弘, 竹田英俊

日本機械学会論文集 814 ( 80 ) 1 - 11 2014年06月

GS19 ポリジメチルシロキサンを共重合したポリカーボネートの衝撃特性

安藤誠人, 野田尚昭, 黒島義人, 石川康弘, 竹田英俊

M&M材料力学カンファレンス ( 一般社団法人日本機械学会 ) 2014 ( 0 ) _GS19 - 1_-_GS19-2_ 2014年01月

担当区分：責任著者記述言語：日本語掲載種別：研究論文（研究会，シンポジウム資料等）

In this study, high-speed tensile testing for notched specimen is conducted to investigate the impact property of Polydimethylsiloxane copolymerized Polycarbonate (PDMS-PC) compared with Polycarbonate (PC). Depending on the test temperature and tensile speed, brittle or ductile fractures are observed for PC. However, only ductile fractures are seen for PDMS-PC even at the high speed 7000mmis and low temperature 243K. The impact properties are also considered in terms of the time-temperature superposition principle. Then, master curves for the final fracture elongation for both PC and PDMS-PC are constructed in terms of the strain rate at the notch in conjunction with shift factors.

DOI： 10.1299/jsmemm.2014._GS19-1_

CiNii Article

その他リンク： https://ci.nii.ac.jp/naid/110009939419

OS2103 高強度鋼の真空環境下における極低速き裂進展特性 : 材料硬さの影響

吉村直也, 黒島義人

M&M材料力学カンファレンス ( 一般社団法人日本機械学会 ) 2014 ( 0 ) _OS2103 - 1_-_OS2103-3_ 2014年01月

記述言語：日本語掲載種別：研究論文（研究会，シンポジウム資料等）

It is known that high strength steel will cause the characteristic internal fracture called Fish eye fracture in very high cycle region. From this, in order to use high strength steel more efficiently and more safely, the elucidation of the mechanism of the Fish eye fracture produced in low stress and long-life and construction of the lifetime evaluation method of Fish eye fracture are desired. In this study, we did ΔK decrease fatigue test under vacuum environment, and examined the relation between internal fracture in very high cycle region and extremely slow fatigue crack growth behavior under vacuum environment. As a result, the influence of material strength was not seen under vacuum environment. Moreover, opening stress increases with increases of maximum stress.

DOI： 10.1299/jsmemm.2014._OS2103-1_

CiNii Article

その他リンク： https://ci.nii.ac.jp/naid/110009939732

OS2109 純せん断下の疲労による炭素鋼薄膜のすべり帯発生におよぼす結晶粒径の影響

植田大輝, 黒島義人

M&M材料力学カンファレンス ( 一般社団法人日本機械学会 ) 2014 ( 0 ) _OS2109 - 1_-_OS2109-3_ 2014年01月

担当区分：責任著者記述言語：日本語掲載種別：研究論文（研究会，シンポジウム資料等）

A metal thin film doesn't necessarily appear general fatigue behavior like a bulk material. By a balk and film material, there is difference of restricted state because of differing in the number of grains to the direction of film thickness. In this research the diagram of ratio of slipped grains and number of cycle was sorted by film thickness/grain size ratio in carbon steel thin film under cyclic shear loading. Then slip ratio under film thickness/grain size ratio 0.80 saturated. The influence of grain size was considered to slip band formation by examining grain's existence frequency to direction of film thickness. It was bringing close to actual grains by extending two dimensions grain size to three dimensions. As a result, there was the relation between the slip ratio and the grain's cumulate existence frequency in the value whose film thickness/grain size ratio are near 0.9.

DOI： 10.1299/jsmemm.2014._OS2109-1_

CiNii Article

その他リンク： https://ci.nii.ac.jp/naid/110009939738

OS2110 変性PCを用いたGFRPの疲労き裂発生様相

齋田寛志, 黒島義人, 安藤誠人

M&M材料力学カンファレンス ( 一般社団法人日本機械学会 ) 2014 ( 0 ) _OS2110 - 1_-_OS2110-3_ 2014年01月

担当区分：責任著者記述言語：日本語掲載種別：研究論文（研究会，シンポジウム資料等）

The following conclusions were obtained as a result of examining the fatigue strength characteristic and the relation of a damage process paying attention to damage to the resin/fiber interface in GFRP based modified PC. 1) Fatigue crack growth rate of the difference in the fatigue characteristics of PDMS-PC and PC-EP is the cause. 2) The damage process of PDMS-PC is a type of crack distribution destroyed while two or more GF end cracks connect.

DOI： 10.1299/jsmemm.2014._OS2110-1_

CiNii Article

その他リンク： https://ci.nii.ac.jp/naid/110009939739

OS2120 磁歪特性を利用した微小疲労き裂開口応力の測定

鈴木洋介, 黒島義人

M&M材料力学カンファレンス ( 一般社団法人日本機械学会 ) 2014 ( 0 ) _OS2120 - 1_-_OS2120-3_ 2014年01月

担当区分：責任著者記述言語：日本語掲載種別：研究論文（研究会，シンポジウム資料等）

The general method is not always effective for the measurement of fatigue small crack growth properties by relation of accuracy and a device characteristic. Non-contact and the highly precise measurement are expected by the use of a magnetostriction effect to apply in this study. The small crack growth properties measurement by a magnetic field change with the magnetostriction effect that was one of a characteristic of magnetism of ferromagnetic substance was studied. Using a coil, a magnetic field change with magnetostriction effect was detected, and the waveform change of the output was inspected. The experiment result was revealed that the small crack affects a magnetic field change by a magnetostriction effect.

DOI： 10.1299/jsmemm.2014._OS2120-1_

CiNii Article

その他リンク： https://ci.nii.ac.jp/naid/110009939748

Strain rate concentration factor for double-edge-notched specimens subjected to high speed tensile loads 査読有り

Noda N., Sano Y., Ando M., Kuroshima Y., Shinozaki T., Ohtsuka H., Guan W.

13th International Conference on Fracture 2013, ICF 2013 4 2623 - 2632 2013年01月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Engineering plastics provide superior performance to ordinary plastics for wide range of the use. For polymer materials, dynamic stress and strain rate may be major factors to be considered when the strength is evaluated. Recently, high speed tensile test is being recognized as a standard testing method to confirm the strength under dynamic loads. In this study, therefore, high speed tensile test is analyzed by the finite element method; then, the maximum dynamic stress and strain rate are discussed with varying the tensile speed and maximum forced displacement. The strain rate concentration factor found to be constant independent of tensile speed, which is defined t K μ as the maximum strain rate appeared at the notch root over the average nominal strain rate at the minimum section. The maximum strain rate is controlled by the tensile speed alone independent of the magnitude of the forced displacement. It is found that the difference between static and dynamic maximum stress concentration (σmax-σst) at the notch root is proportional to the tensile speed when u/t ≤ 5000mm/s. Copyright © (2013) by International Conference on Fracture.

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84898803106&origin=inward

Relationship between the effect of the modification and the damage behavior of resin/fiber interface in glass fiber reinforced polycarbonate 査読有り

Ando M., Nomura M., Takeda H., Kuroshima Y., Nakatsuka Y.

Zairyo/Journal of the Society of Materials Science, Japan 61 ( 5 ) 441 - 446 2012年05月

記述言語：日本語掲載種別：研究論文（学術雑誌）

This study considered the behavior of tensile and fatigue damage, and the effect of reinforcement of the interface strength given to a damage process by observing the microscopic damage to the fiber interface of glass fiber reinforcement polycarbonate. As a result, the following thing became clear. 1) In both tensile and fatigue process, damage was initiated from the fiber end in the early stages, and the debonding propagated along the fiber interface. 2) The GF/PC interface strength improved by adding the epoxy resin. 3) The debonding along the fiber interface was inhibited by improving interface strength. © 2012 The Society of Materials Science, Japan.

DOI： 10.2472/jsms.61.441

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84866901430&origin=inward

ガラス繊維強化ポリカーボネートにおける樹脂/繊維界面の損傷挙動と改質効果の関係査読有り

安藤誠人,野村学,竹田英俊,黒島義人,中塚康裕

材料 61 ( 5 ) 441 - 446 2012年05月

樹脂/繊維界面を改質した GFPC における疲労強度特性と損傷機構の関係（共著）査読有り

安藤誠人, 中塚康裕, 黒島義人, 野村学, 竹田英俊

日本機械学会論文集 789 ( 78 ) 609 - 612 2012年05月

誘導加熱を用いた超急速短時間焼入鋼の引張特性査読有り

福田忠生,中島大剛,江田潤一,黒島義人,三阪佳孝,川嵜一博

日本機械学会論文集A編 73 ( 726 ) 285 - 291 2007年04月

Tensile properties of QT steel using: Super rapid induction quenching 査読有り

Fukuta T., Nakashima D., Kouda J., Kuroshima Y., Misaka Y., Kawasaki K.

Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A 73 ( 2 ) 285 - 291 2007年02月

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

It has been well known that mechanical properties of steels are improved by gain refinement, smaller cementite particle and finely dispersing cementite particle, It is enabled by super rapid induction tempering the the smaller cementite particle and the finely dispersing cementite particle. In this study, mechanical properties of induction quenching and tempering carbon steel using super rapid induction heating system were investigated. Dtail, the effect of quenching time on tensile properties is examined. The quenching time was changed in four steps of 0.44 s (1163 K), 10 s (1233 K) +10 s (1153 K), 20 s (1273 K) and 20 s (1433 K). As a result, it was found that the tensile strength of QT steel indicated an increase tendency with hardness. The yield strength was in proportion to a square root of grain size. However, the ductility improvement effected by super rapid induction quenching was not found, reduction of area did not depend on grain size.

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34248362418&origin=inward

Tensile properties of QT steel using super rapid induction tempering 査読有り

Fukuta T., Nakashima D., Kouda J., Kuroshima Y., Misaka Y., Kawasaki K.

Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A 72 ( 7 ) 1088 - 1094 2006年07月

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

We focused our attention on microstructure control and improvement of mechanical properties of induction tempering carbon steel using super rapid induction heating system. We examined the effect of tempering time on tensile properties. The tempering time was changed in two steps of 0.35s and 1.15s. As a result, it was found that the QT steel obtained super rapid induction tempering had both high strength and high ductility. The ductility of the super rapid induction tempering steel was 10% larger compared with the usual tempering steel. The reason for this phenomenon was explained in that cementite particle of super rapid induction tempering steel became small and dispersed finely in comparison with usual tempering steel.

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33749563560&origin=inward

誘導加熱を用いた超急速短時間焼戻鋼の引張特性査読有り

福田忠生,中島大剛,江田潤一,黒島義人,三阪佳孝,川嵜一博

日本機械学会論文集A編 72 ( 719 ) 1088 - 1094 2006年04月

A study on ODA formation condition for high strength steel during fatigue test in vacuum 査読有り

Kawano H., Kuroshima Y., Harada S.

Zairyo/Journal of the Society of Materials Science, Japan ( 社団法人日本材料学会 ) 54 ( 12 ) 1213 - 1216 2005年12月

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

A high strength steel shows fish-eye failure in very long life fatigue. In this region, the fatigue crack growth in ODA (Optically Dark Area) controls the fatigue process. However, ODA's formative mechanism is unknown. Therefore, to predict fatigue life of fish-eye failure, it is important to know ODA's formative mechanism. So, the present study examined for the influential factors on ODA in the fatigue process through uniaxial push-pull fatigue tests in vacuum as well as computer simulation. In experiment, vacuum environment is employed to simulate fish-eye type crack growth on surface of specimens becase of shutting off supply of air. The test results in vaccum showed that the fatigue life property of surface failure has corresponded to fish-eye fatigue life. And the site of inclusion which has fracture origin size determines whether surface failure or internal failure in vacuum. The results of fractographic observation of crack initiation showed that the rough area of surface fracture in vacuum was formed by mechanism of ODA type crack. Furthermore, the fatigue life of numerical simulation in vacuum showed that the fatigue life which was necessary to form ODA on specimen surface corresponded experimental life.

DOI： 10.2472/jsms.54.1213

Scopus

CiNii Article

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33244492443&origin=inward

真空疲労試験による高強度鋼のODA形成条件の検討査読有り

河野寛輝,黒島義人,原田昭治

材料 54 ( 12 ) 1213 - 1213 2005年04月

Evaluation of Fatigue Life of High Strength Steel by Numerical Simulation Using the Competitive Crack Propagation Properties Model 査読有り

Yoshihito Kuroshima,Hiroki Kawano,Shoji Harada

VHCF-3 32 - 32 2004年04月

3D Observation of Transient Stage I-to-Stage II Behavior of Surface Crack Growth in Carbon Steel and Aluminum 査読有り

Shoji Harada,Yoshihito Kuroshima

7th ICBMFF 173 - 173 2004年04月

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