Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Simulation of dynamic fracture and fluid-structure interaction in solid propellant rockets : Part 1 (theoretical aspects)

고체추진로켓 내부에서 발생하는 동적 파괴 현상과 유체-고체 상호작용의 시뮬레이션 - Part 1 (이론적 측면)

  • 황찬규 (서울벤처정보대학원대학교)
  • Published : 2008.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

This paper summarizes the components of an explicit aeroelastic solver developed especially for the simulation of dynamic fracture events occurring during the flight of solid propellant rockets. The numerical method combines an explicit Arbitrary Lagrangian Eulerian (ALE) version of the Cohesive Volumetric Finite Element (CVFE) scheme, used to simulate the spontaneous motion of one or more cracks propagating dynamically through a domain with regressing boundaries, and an explicit unstructured finite volume Euler code to follow the flow field during the failure event. A key feature of the algorithm is the ability to adaptively repair and expand the fluid mesh to handle the large geometrical changes associated with grain deformation and crack motion.

본 논문은 고체 추진 로켓의 연소 중에 발생하는 고체추진체의 동적 파괴 현상 및 유체-구조 상호작용을 시뮬레이션 하기 위한 프로그램 개발에 대한 것이다. 개발된 프로그램은 구조해석을 위한 CVFE (cohesive Volumetric Finite Element) 방법과 외재적 ALE (Arbitrary Lagrangian Eulerian) 방법을 응용한 유한요소법 코드와 유동해석을 위한 외재적 비정렬 유한 체적 오일러 코드(Explicit Unstructured Finite Volume Euler code)로 구성된다. 개발된 프로그램의 또 다른 중요한 특징은 균열의 전파와 고체추진체의 변형에 따라 생기는 추진제 형상의 대변형이 발생할 때, 새로 생긴 유체 영역에서의 격자의 확장과 복구되는 능력이다.

Keywords

References

  1. Chang, I.-S., Patel, N. R., and Yang, S., "Titan IV SRMU anomaly and redesign analyses," AIAA/SAE/ASME/ASEE 30th Joint Propulsion Conference and Exhibit, Indianapolis, IN, June 1994 (AIAA Paper 94-3284).
  2. Geubelle, P. H., and Baylor, J., "Impact-induced delamination of composites: a 2-D simulation," Composites B, Vol. 29, pp. 589-602, 1998. https://doi.org/10.1016/S1359-8368(98)00013-4
  3. Arruda, E. M., and Boyce, M. C. "A three-dimensional constitutive model for the large stretch behavior of rubber elastic materials," Journal of the Mechanics and Physics of Solids, Vol. 41, No. 2, pp. 389-412, 1993. https://doi.org/10.1016/0022-5096(93)90013-6
  4. Koh, H. M., and Haber, R. B., "Elastodynamic formulation of the Eulerian-Lagrangian kinematic description," Journal of Applied Mechanics, Vol. 53, pp. 839-845, 1988.
  5. Jameson, A., "Artificial diffusion, upwind biasing, and their effect on accuracy and convergence in transonic and hypersonic flows," 11th AIAA Computational Fluid Dynamics Conference, Orlando, FL, 1993 (AIAA Paper 93-3359).
  6. Nelson, H. C., and Cunningham H. J., "Theoretical investigation of flutter of two-dimensional flat panels with one surface exposed to supersonic potential flow," NACA TR 1280, 1956.