서지주요정보
2차원 강소성 유한요소해석에서의 안정성 및 효율성 향상에 관한 연구 = Improvement of stability and efficiency in two-dimensional rigid-plastic finite element method
서명 / 저자 2차원 강소성 유한요소해석에서의 안정성 및 효율성 향상에 관한 연구 = Improvement of stability and efficiency in two-dimensional rigid-plastic finite element method / 박근.
저자명 박근 ; Park, Khun
발행사항 [대전 : 한국과학기술원, 1994].
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소장정보

등록번호

8004544

소장위치/청구기호

학술문화관(문화관) 보존서고

MPE 94013

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

In analysis of metal forming processes by the finite element method, there appear many numerical instabilities such as element locking, hourglass mode, and shear locking, which arise from incompressible condition and geometric constraint. These instabilities may have a bad effect upon accuracy and convergence of the solution. The present work is concerned with the improvement of stability and efficiency in the two-dimensional finite element method. In order to investigate the behavior of elements, analyses for various type of elements such as triangular and quadrilateral element and elements of different orders to include linear, quadratic, and transition elements have been carried out. For the sake of comparison among different numerical integration schemes, some problems are subjected to analyses by employing different integration schemes such as full integration, reduced integration, selective reduced integration and directional reduced integration. As metal forming examples, upsetting and backward extrusion are taken for comparison among the methods: various element types and numerical integration schemes. Comparison is made in terms of stability and efficiency in element behavior and computational efficiency and a new scheme of adaptive directional reduced integration is introduced for finite element analysis of bulk metal forming processes. Through the proposed scheme, it has been shown that the finite element computation is stabilized from the viewpoint of computational time, convergency, and numerical instability.

서지기타정보

서지기타정보
청구기호 {MPE 94013
형태사항 iv, 71 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Khun Park
지도교수의 한글표기 : 양동열
지도교수의 영문표기 : Dong-Yol Yang
학위논문 학위논문(석사) - 한국과학기술원 : 정밀공학과,
서지주기 참고문헌 : p. 30-34
주제 Plastic analysis.
Plasticity.
Metals --Extrusion.
Upset forging.
유한 요소법. --과학기술용어시소러스
강소성. --과학기술용어시소러스
소성 해석. --과학기술용어시소러스
수치 해법. --과학기술용어시소러스
압축 가공. --과학기술용어시소러스
Finite element method.
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