서지주요정보
형상기억합금 선을 삽입한 복합적층 구조물의 좌굴해석 = Buckling and postbuckling analysis of laminated composite structures with embedded shape memory alloy wires
서명 / 저자 형상기억합금 선을 삽입한 복합적층 구조물의 좌굴해석 = Buckling and postbuckling analysis of laminated composite structures with embedded shape memory alloy wires / 이효직.
저자명 이효직 ; Lee, Hyo-Jik
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8008618

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 98066

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

리뷰정보

초록정보

In this study, numerical simulation analysis for the buckling behavior of laminated composite structures with embedded shape memory alloy (SMA) wires which have good characteristics as actuator was performed to investigate the effect of embedded SMA wires on the buckling characteristics of composite structures. In order to simulate the behavior of SMA, constitutive equations based on the previous studies are formulated in the form of ABAQUS user subroutine. Formulated constitutive equations include one dimensional and muti-demensional relations. Their computational program is verified by showing the responses of pseudoelasticity and of the shape memory effect (SME) at all temperatures and stress levels and comparing it with others' results. Modeling of laminated composite shells with embedded SMA wires and nonlinear buckling and postbuckling analysis are obtained by the use of ABAQUS code linked with the subroutine of the suggested SMA constitutive relations. Nonlinear buckling analysis for the case of external load shows that the activation of eccentrically embedded SMA wires raises a sudden increase of reaction forces. This means that the possibility of buckling control by increasing the temperature of SMA wires is suggested. The gain of reaction forces is due to the fact that SME by phase transformation induces strong recovery moments at a deformed state. Buckling analysis for the case of thermal stress without external load is also performed. Thermal buckling analysis of composite shells with embedded SMA wires shows that because of the effect of embedded SMA wires, the critical buckling temperature is increased and the thermal buckling deflection is decreased. Both buckling analyses are performed with reflection of various factor such as the geometrical imperfection, boundary condition, number of embedded SMA wires, laminated angle, and geometrical shape (plate and panel) of the composite shell.

서지기타정보

서지기타정보
청구기호 {MME 98066
형태사항 ix, 80 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : 1, 진화방정식에 사용되는 계수들. - 2, 구성방정식에 사용되는 계수들. - 3, ASAQUS User subreoutine에서 구성 방정식의 계산 알고리즘
저자명의 영문표기 : Hyo-Jik Lee
지도교수의 한글표기 : 이정주
지도교수의 영문표기 : Jung-Ju Lee
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 25-26
주제 좌굴
열좌굴
형상기억합금
형상기억효과
좌굴제어
Buckling
Thermal buckling
SMA
SME
Buckling control
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