Thermomechanical transformation fatigue of SMA actuators

被引：22

作者：

Lagoudas, DC ^{[1
]}

Li, CC ^{[1
]}

Miller, DA ^{[1
]}

Rong, LJ ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Aerosp Engn, College Stn, TX 77843 USA

来源：

SMART STRUCTURES AND MATERIALS 2000 - ACTIVE MATERIALS: BEHAVIOR AND MECHANICS | 2000年 / 3992卷

关键词：

Shape Memory Alloys (SMA); thermomechanical fatigue life; martensitic volume fraction; transformation temperatures;

D O I：

10.1117/12.388225

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

As Shape Memory Alloys (SMA) gain popularity for use as large force actuators, one constitutive parameter that becomes particularly important is the thermomechanical fatigue life, in addition to maximum transformation strain and stability of actuation cycles. Even though the effect of thermal transformation cycles on the transformation characteristics of SMAs has been studied both experimentally and analytically, these studies have not been extended to high cycle levels related to the fatigue life. In this paper, a novel test frame and testing protocol are discussed to establish the transformation fatigue characteristics of SMAs under various loading conditions. Results are presented for the thermomechanical transformation fatigue life of SMA wire actuators under different applied stress levels and for different annealing conditions.

引用

页码：420 / 429

页数：10

共 16 条

[1]

DIMITRIS C, 1999, P 1999 C SMART STRUC, P275

[2] Effect of training conditions and extended thermal cycling on nitinol two-way shape memory behavior [J].

Hebda, DA ;

White, SR .

SMART MATERIALS & STRUCTURES, 1995, 4 (04) :298-304

[3] Thermomechanical modeling of poly-crystalline SMAs under cyclic loading, Part II: material characterization and experimental results for a stable transformation cycle [J].

Lagoudas, DC ;

Bo, ZH .

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 1999, 37 (09) :1141-1173

[4]

LIM TJ, 1994, P 1994 N AM C SMART, P153

[5] From genetics to chemistry: tumor suppressor genes and drug discovery [J].

McCormick, Frank ;

Myers, Peter .

CHEMISTRY & BIOLOGY, 1994, 1 (01) :7-9

[6] NITI FATIGUE BEHAVIOR [J].

MCNICHOLS, JL ;

BROOKES, PC ;

CORY, JS .

JOURNAL OF APPLIED PHYSICS, 1981, 52 (12) :7442-7443

[7] FATIGUE OF NITI THERMOELASTIC MARTENSITES [J].

MELTON, KN ;

MERCIER, O .

ACTA METALLURGICA, 1979, 27 (01) :137-144

[8]

MILLER DA, 2000, UNPUB MAT SCI ENG A

[9] EFFECT OF CYCLIC DEFORMATION ON THE PSEUDOELASTICITY CHARACTERISTICS OF TI-NI ALLOYS [J].

MIYAZAKI, S ;

IMAI, T ;

IGO, Y ;

OTSUKA, K .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1986, 17 (01) :115-120

[10]

Miyazaki S., 1990, ENG ASPECTS SHAPE ME, DOI DOI 10.1016/B978-0-7506-1009-4.50037-8

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