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Variation in Functional Properties of Shape Memory Materials under Use of Long Duration

Research Project

Project/Area Number 13650104
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionAichi Institute of Technology

Principal Investigator

TOBUSHI Hisaaki  Aichi Inst. of Tech., Dept. of Mechanical Engineering, Professor, 工学部, 教授 (70103231)

Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2003: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2002: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2001: ¥2,900,000 (Direct Cost: ¥2,900,000)
Keywordsshape memory alloy / shape memory polymer / cyclic deformation property / fatigue property / creep / stress relaxation / shape recocery / secondary shape forming / 疲労 / 繰り返し変形 / フォーム / 回復応力 / 形状固定 / 疲労寿命 / 形状記憶効果 / 超弾性 / マルテンサイト変態 / R相変態 / ガラス転移
Research Abstract

In the present study, functional properties of shape memory alloy (SMA) and shape memory polymer (SMP), fatigue properties of SMA and deformation properties of SMP held at the fixed shape for a long duration were investigated. The results obtained can be summarized as follows.
(1)In the subloop loading of SMA under the stress-controlled conditions, stress relaxation under constant strain and creep deformation under constant stress appear in the loading process. Stress recovery and creep recovery appear in the unloading press. These pseudoviscoelastic behaviors are induced due to the martensitic transformation based on variation in temperature.
(2)An alternating-plane bending fatigue testing machine for an SMA wire was newly developed. The influence of strain ratio on fatigue life is systematically expressed by using maximum strain for rotating-bending, pulsating-plane bending and alternating-plane bending fatigue of an SMA wire. Fatigue life of a newly developed superelastic thin-walled … More tube is shorter than that of a wire. Fatigue crack of a thin tube initiates on an inner surface. The ratio of fracture surface due to fatigue in a thin tube is small.
(3)With respect to a newly developed highelastic thin wire, the stress-strain curve is almost straight till a stress level of 1400 MPa and an amount of strain of 4%. The fatigue property does not depend on temperature and frequency. Modulus of elasticity is one fourth of that of stainless steel. The highelastic thin wire has high performance for a medical guide wire.
(4)If an SMP foam is loaded at high temperature and the deformed shape is held at low temperature, both ratios of shape fixity and shape recovery are larger than 98 % without depending on maximum strain after holding for six months.
(5)If the deformed shape of an SMP foam is held at high temperature, secondary shape forming occurs, resulting in imperfect shape recovery. The ratio of shape irrecoverableness increases in proportion to shape-holding temperature, shape-holding strain and shape-holding time. Less

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report

Research Products

(38 results)

All Other

All Publications

  • [Publications] 戸伏壽昭: "NiTi合金の高弾性細線および超弾性細管の変形および疲労特性"日本機会学会論文集(A編). 76・689. 76-83 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yuji Furuichi: "Fatigue Properties of a TiNi Shape-Memory Alloy Wire in Bending"Trans. of Mater. Res. Soc. of Jpn.. 28・3. 615-618 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Pseudoviscoelastic Behavior of TiNi Shape Memory Alloy in Subloop"Trans. of Mater. Res. Soc. of Jpn.. 28・3. 611-614 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Thermomechanical Properties of Polyurethane-Shape Memory Polymer Foam"Trans. of Mater. Res. Soc. of Jpn.. 28・3. 643-646 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 古市裕司: "TiNi形状記憶合金線材の曲げ疲労寿命に対するひずみ比の影響"日本機会学会論文集(A編). 69・683. 1094-1100 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Tobushi: "Shape fixity and shape recovery of polyurethane-shape memory polymer foams"Proc.Instn.Mech.Engrs., Part L : Materials : Design & Appl.. 217. 135-143 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Deformation and Fatigue of Highelastic Wire and Superelastic Thin Tube of NiTi Alloy"Trans. JSME, Ser. A. 76-689. 76-83 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yuji Furuichi: "Fatigue Properties of a TiNi Shape-Memory Alloy Wire in Bending"Trans. of Mater. Res. Soc. of Jpn.. 28-3. 615-618 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Pseudoviscoelastic Behavior of TiNi Shape Memory Alloy in Subloop"Trans. of Mater. Res. Soc. of Jpn.. 28-3. 611-614 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Thermomechanical Properties of Polyurethane-Shape Memory Polymer Foam"Trans. of Mater. Res. Soc. of Jpn.. 28-3. 643-646 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yuji Furuichi: "Influence of Strain Ratio on Bending Fatigue Life of TiNi Shape-Memory Alloy Wire"Trans. JSME, ser. A. 69-683. 1094-1100 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Shape Fixity and Shape Recovery of Polyurethane-Shape Memory Polymer Foams"Proc. Instn. Mech. Engrs., Part L : J. Materials: Design & Appl.. 217. 135-143 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Pseudoviscoelastic Behavior of TiNi Shape Memory Alloys under Stress-Controlled Subloop Loadings"Arch. Mech.. 55. 519-530 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Fatigue Properties of a TiNi Shape-Memory Alloy Wire Subjected to Bending with Various Strain Ratios"Proc. Instn. Mech. Engrs., Part L : J. Materials : Design & Appl.. 217. 93-99 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Influence of Strain Ratio and Environment on Bending Fatigue Life and Form of Fracture Surface in TiNi Shape-Memory Alloy Wire"Trans, JSME, Ser. A. 69-678. 420-426 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Creep and Stress Relaxation of Polyurethane -Shape Memory Polymer Foam"Trans. JSME, Ser. A. 68-676. 1788-1793 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Shape Fixity and Shape Recovery of Polyurethane-Shape Memory Polymer Foam"Trans. JSME, Ser. A. 68-675. 1594-1599 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] J.M.Gong: "Superelastic Deformation of a TiNi Shape Memory alloy Subjected to Various Cyclic Loadings"Proc. Instn. Mech. Engrs., Part L : J. Materials: Design & Appl.. 216. 17-23 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Deformation Behavior of TiNi Shape-Memory Alloy under Strain-or Stress-Controlled Conditions"Arch. Mech.. 54-1. 75-91 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hisaaki Tobushi: "Thermomechanical Constitutive Model of Shape Memoly Polymer"Mech. Mater.. 33. 545-554 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 戸伏壽昭: "NiTi合金の高弾性細線および超弾性細管の変形および疲労特性"日本機会学会論文集(A編). 76・689. 76-83 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yuji Furuichi: "Fatigue Properties of a TiNi Shape-Memory Alloy Wire in Bending"Trans.of Mater.Res.Soc.of Jpn.. 28・3. 615-618 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hisaaki Tobushi: "Pseudoviscoelastic Behavior of TiNi Shape Memory Alloy in Subloop"Trans.of Mater.Res.Soc.of Jpn.. 28・3. 611-614 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hisaaki Tobushi: "Thermomechanical Properties of Polyurethane-Shape Memory Polymer Foam"Trans.of Mater.Res.Soc.of Jpn.. 28・3. 643-646 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 古市裕司: "TiNI形状記憶合金線材の曲げ疲労寿命に対するひずみ比の影響"日本機会学会論文集(A編). 69・683. 1094-1100 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Tobushi: "Shape fixity and shape recovery of polyurethane Shape-memory polymer foams"Proc.Instn.Mech.Engrs., Part L : Materials : Design & Appl.. 217. 135-143 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 戸伏壽昭, 林俊一, 遠藤雅人, 島田大介: "ポリウレタン系形状記憶ポリマーフォームの形状固定性と形状回復性"日本機械学会論文集. 68・675. 1594-1599 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 戸伏壽昭, 林俊一, 遠藤雅人, 島田大介: "ポリウレタン系形状記億ポリマーフォームのクリープと応力緩和"日本機械学会論文集. 68・676. 1788-1793 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 戸伏壽昭, 中川健一, 岩永弘之, 遠藤雅人: "TiNi形状記憶合金線材の曲げ疲労寿命および破断面の形態に及ぼすひずみ比と雰囲気の影響"日本機械学会論文集. 69・678. 420-426 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Tobushi, K.Okumura, M.Endo, S.Hayashi: "Thermomechanical Properties of Polyurethane-Shape Memory Polymer"IUTAM Symposium on Mechanics of Martensitic Phase Transformation in Solids. 79-86 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] J.M.Gong, H.Tobushi, K.Tanaka, K.Okumura: "Superelastic deformation of a TiNi shape memory alloy subjected to various cyclic loadings"Proc. Instn. Mech. Engrs., Part L : Materials : Design and Annlications. Vol.216. 17-23 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Tobushi, K.Okumura, M.Endo, K.Tanaka: "Deformation behavior of TiNi shape-memory alloy under strain-or stress-controlled conditions"Archives of Mechanics. Vol.54,No.1. 75-91 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 戸伏壽昭, 奥村佳代, 遠藤雅人, 井川毅信: "TiNi形状記憶合金の変形特性"日本機械学会講演論文集. No.018-2. 261-262 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 戸伏壽昭, 林俊一, 遠藤雅人, 島田大介: "ポリウレタン系形状記憶ポリマーフォームの変形"日本機械学会講演論文集. No.018-2. 263-264 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Tobushi, K.Okumura, M.Endo, K.Tanaka: "Deformation behavior of TiNi shape memory alloy under strain-or stress-controlled conditions"Smart Structures and Materials 2002: Active Materials : Behavior and Mechanics. SPIE4699. (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 戸伏壽昭, 遠藤雅人, 井川毅信, 島田大介: "TiNi形状記憶合金のサブループにおける擬粘弾性挙動"日本機械学会講演論文集. No.023-1. 251-252 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 戸伏壽昭, 堀川宏, 島田大介: "超弾性および高弾性のNiTi合金の変形特性"日本機械学会講演論文集. No.023-1. 277-278 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 戸伏壽昭, 林俊一, 遠藤雅人: "ポリウレタン系形状記憶ポリマーフォームの形状固定後の変形特性"日本機械学会講演論文集. No.023-1. 279-280 (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-03-31   Modified: 2016-04-21  

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