IV Metal Forming CAE Lab Department of Mechanical
연속체역학 입문 IV - 고체역학부문 - Metal Forming CAE Lab. Department of Mechanical Engineering Gyeongsang National University, Korea Metal Forming CAE Lab. , Gyeongsang National University
응력불변치(Stress Invariants) ¤ : 2 차 텐서량 → 좌표변환 법칙 고유치=주응력 의 고유치 와 Similarity transformation (상사변환) Transformation matrix Orthonormal matrix 는 동일함 ○ 응력불변치 ○
항복이론 정리, 변형경화와 항복궤적 ¤ Huber-von Mises Y. C. ¤ 등방성경화 Effective stress ¤ Tresca Y. C. ¤ Yield locus in the case of plane stress ; A: Elastic B: Tresca impossible Mises elastic C: Mises plastic D: Both impossible E: Tresca plastic Mises elastic ①: 인장시험, uniaxial loading ②: 비틀림시험, torsion
연속체의 선형탄성역학 문제의 수식화 ¤ 평형방정식 Indicial notation Equation of Equilibrium ¤ 구성방정식 Stress-Strain Relation Indicial notation ¤ 변위-변형률 관계식 Displacement-Strain Relation
유한요소법을 이용하여 평형방정식을 푼 예 <Structural Analysis> <Simulation Results of Forging Process>
변형에너지 ¤ Strain energy in bar ¤ Strain energy in solid ¤ Strain energy in circular shafts ¤ Strain energy in beam 변형에너지밀도함수
- Slides: 15