An Automated Adaptive Finite Element Mesh Generation for Dynamics
1
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
Structural analysis remains as an essential part of any integrated civil engineering system in today’s rapidly changing computing environment. Even with enormous advancements in capabilities of computers and mobile tools, enhancing computational efficiency of algorithms is necessary to meet the changing demands for quick real time response systems. The finite element method is still the most widely used method of computational structural analysis; a robust, reliable and automated finite element structural analysis module is essential in a modern integrated structural engineering system. To be a part of an automated finite element structural analysis, an efficient adaptive mesh generation scheme based on R-H refinement for the mesh and error estimates from representative strain values at Gauss points is described. A coefficient that depends on the shape of element is used to correct overly distorted elements. Two simple case studies show the validity and computational efficiency. The scheme is appropriate for nonlinear and dynamic problems in earthquake engineering which generally require a huge number of iterative computations.
Abstract
Structural analysis remains as an essential part of any integrated civil engineering system in today’s rapidly changing computing environment. Even with enormous advancements in capabilities of computers and mobile tools, enhancing computational efficiency of algorithms is necessary to meet the changing demands for quick real time response systems. The finite element method is still the most widely used method of computational structural analysis; a robust, reliable and automated finite element structural analysis module is essential in a modern integrated structural engineering system. To be a part of an automated finite element structural analysis, an efficient adaptive mesh generation scheme based on R-H refinement for the mesh and error estimates from representative strain values at Gauss points is described. A coefficient that depends on the shape of element is used to correct overly distorted elements. Two simple case studies show the validity and computational efficiency. The scheme is appropriate for nonlinear and dynamic problems in earthquake engineering which generally require a huge number of iterative computations.
참고문헌 (13)
- Rabizuk T, "Three-dimensional meshfree method for continuous multiple-crack initiation, propagation and junction in statics and dynamics", Comp Mech, 40, pp.473~495 (2007)
- 지광습, "확장유한요소법을 이용한 요소망 제약조건이 없는 다중 피로균열 진전 해석기법", 대한토목학회 논문집A, 25(1A), pp.183~190 (2005), 대한토목학회
- Alfarra B, "New methodology for calculating damage variable evolution in plastic damage model for RC structure", Eng Struct, 132, pp.70~86 (2017)
- Snozzi L, "A cohesive element model for mixed mode loading with frictional mixed mode loading with frictional contact capability", IJNME, 93(5), pp.510~526 (2013)
- Bathe KJ, "Finite element procedures in engineering analysis", pp.735~ (1982), Prentice- Hall;
- Belytschko T, "Finite element procedures", pp.999~ (1996), Prentice-Hall
- Choi C, "Adaptive mesh generation for dynamic finite element analysis", J Kor Soc of Civil Eng, 18(I-2), pp.203~804 (1998)
- Jeong YC, "Representative Strain Value Based Adaptive Mesh Generation for Plane Stress", Hongik J Science and Tech, 7, pp.71~86 (2003)
- 윤종열, "동적 문제의 적응적 유한 요소망 형성 전략", 대한토목학회 논문집A, 25(6A), pp.989~998 (2005), 대한토목학회
- de Las Casas EB., "R-H mesh improvement algorithms for the finite element Method", Ph.D., pp.1988
- 윤종열, "An Adaptive Mesh Generation Scheme for the Finite Element Method", 한국방재학회논문집, 14(4), pp.43~49 (2014), 한국방재학회
- Newmark NM, "A method of computation for structural dynamics", J Eng Mech Div. ASCE, 85(EM3), pp.67~94 (1959)
- Zienkiewicz OC, "The Finite Element Method: Its Basis and Fundamentals", pp.689~ (2005), Butterworth-Heinemann