http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
임장근,이성주,강천수,김미옥,장용우 대한신장학회 1994 Kidney Research and Clinical Practice Vol.13 No.3
Salmonellosis is clinical syndrome, it is formed typhoid fever, acute gastroenteritis, sepsis, focal infection and irreversible intestinal carrier in a man. Many cases were reported about complication of typhoid fever, such as intestinal perforation, intestinal hemorrhage, pneumonia, hepatitis, myocarditis, but a few was reported only about acute renal failure in salmonellosis. 55 years old female patient who has clinical course of salmonellosis, it turned out significant findings of salmonella nephritis after renal biopsy, and also turned out salmonella group C after stool examination. The review of the literature was made briefly.
임장근 대한기계학회 1994 大韓機械學會誌 Vol.34 No.7
유한요소법은 1960년 Clough에 의하여 명명된 이래 구조역학적인 문제에 이용되어 오다가 오 늘날에는 공학적 문제를 해결하기 위한 가장 보편적인 도구가 되었다. 유한요소법의 사용이 이와 같이 보편화될 수 있었던 주요인은 컴퓨터의 발달과 무관하지 않겠지만 해석프로그램을 한 번 개발하면 동일한 특성의 다양한 구조물을 누구나 숩게 해석할 수 있는 범용성 때문으로 생각 된다. 그러나 유한요소법도 일종의 수치해법이기 때문에 수식화 방법과 해석하는 사람에 따라서 그 결과에 다소 차이가 생기는 것도 틀림없는 사실이다. 따라서 1980년대 초부터 학자들은 유 한요소법의 정확도 문제에 관심을 갖게 되었고 최근에는 누가 해석하든지 신뢰성 있는 동일한 결과를 얻을 수 있는 방법과 미리 해석결과의 정확도를 지정하여 입력시킬 때 이에 따른 결과를 얻기 위한 방법에 많은 연구를 하고 있다.
平面應力狀態 에서 균열先端 의 小規模降伏 에 관한 有限要素解析
임장근,맹주성,김병용 대한기계학회 1983 대한기계학회논문집 Vol.7 No.3
Plastic plane stress solutions are given for a center cracked strip, characterized by the Ramberg-Osgood plastic index, under bi-axial tension. Using a power law hardening stress-strain relation, an incremental plasticity finite element formulation is developed, and simple formulation is given for computing J-integral with nodal displacements. The near tip angular distribution of von Mises effective stress doesn't differ significantly in magnitude according to the change of loading stress and bi-axial load combination factor. But, for smaller plastic index, the location of its maximum value moves vertically at a head of crack. J-integral value, in the plastic zone near crack tip, decreases with load combination factor for large and small plastic index.
유공판의 응력집중계수를 최소로하는 Hole형상의 최적화
임장근,김태완 대한기계학회 1985 대한기계학회논문집 Vol.9 No.3
본 논문에서는 Dhir의 이론에 따라서 Mapping함수로 고차다항식을 사용하여 여러가지 하중상태에 따른 최적형상을 연구하고 Mapping함수에 포함되어 있는 계수가 응력집중 및 형상변화에 미치는 영향을 검토하며 광탄성 실험을 통하여 이론의 타당성 을 입증하고자 하였다.
임장근,송태한,석병호,Im, Jang-Geun,Song, Tae-Han,Seok, Byeong-Ho 대한기계학회 2001 大韓機械學會論文集A Vol.25 No.9
Meshless methods, developed in various ways over the past decade, have been attractive as new computational methods in that they do not need mesh generation in analyzing procedure. But most of these methods were not truly meshless methods because background meshes were required for the spatial integration of a weak form. Accordingly, in this paper, nodal integration for truly meshless methods has been studied, and an improvement scheme is proposed. To improve stabilization and accuracy, which are the weak points in previous nodal integration methods, the integration area is transformed to circle and then numerically integrated. This method does not need any adding term for stabilization in the variational formulation and then simplifies the integration procedure. Numerical test results show that the proposed method is more accurate, stable, and reasonable than the existed nodal integration methods.
평면 탄성문제의 트래프츠 유한요소법과 캐비티요소의 구성
임장근,송관섭,Lim, Jangkeun,Song, Kwansup 대한기계학회 1996 大韓機械學會論文集A Vol.20 No.1
For the effective analysis of two dimensional plane problems, Treffiz finite elements and cavity elements have been proposed. These element matrix equaitons were formulated on the basis of hybrid variational principle and Treffiz function sets derived consitstently from the complex theoy of plane elasticity. In order to suggest the accuracy chatacteristics of the proposed Treffiz elements typical plane problems were analyzed and these results were compared with ones obtained by using the conveintional displacement type elements. The accuracy of the proposed elements is less sensitive to the element size and shape than the conventional displacement type elements. These elements, being able to be formed with multi-nodes, give the convenient modeling of an analytic domain. The cavity elements give the comparatively exact values of stress concentration factors of stress intensity factors and can be effectively used for the analysis of mechanical stuctures containing various cavities.