Beom-Seon Jang
서울대학교 항공우주공학과 · 공학
이 교수의 연구실은 해양 구조물 및 선박의 구조적 거동과 내구성 향상을 위한 고도화된 유한요소 해석 기법과 열-기계 상호작용 해석 기반의 용접 변형 예측 기술을 핵심으로 한다. 특히, 해양 구조물의 충격 하중 반응, 스테이플링 응력, 용접 열전달 모델링, 그리고 화재 시 구조물의 거동 분석에 중점을 두고 있으며, 실용적이고 비용 효율적인 설계 및 제조 기법 개발을 목표로 한다. 이와 함께, 복합 다층 지반에서의 지반 기초 거동 및 소성 거동 해석도 연구 영역에 포함된다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
In the present study, the existing equivalent stain method is improved to make up for its weaknesses. The improved inherent strain model is built considering more sophisticated three dimensional constraints which are embodied by six cubic elements attached on three sides of a core cubic element. From a few case studies, it is found that the inherent strain is mainly affected by the changes in restraints induced by changes of temperature-dependent material properties of the restraining elements.
Marine structures are subjected to slamming loads characterised by high hydrodynamic pressure within short time durations. Such loads can cause local and global damages to structures. This paper, which is Part I in a series, reports a numerical investigation of slamming loads acting on flat stiffened plates and their dynamic response. The nonlinear explicit finite element code LS-Dyna with the Multi-Material Arbitrary Lagrangian-Eulerian (MMALE) solver was adopted to simulate the slamming impact
The use of I-Core sandwich panel has increased in cruise ship deck structure since it can provide similar bending strength with conventional stiffened plate while keeping lighter weight and lower web height. However, due to its thin plate thickness, i.e. about 4~6 mm at most, it is assembled by high power CO2 laser welding to minimize the welding deformation. This research proposes a volumetric heat source model for T-joint of the I-Core sandwich panel and a method to use shell element model for
