氷變形특성에 있어서 塑性 모델의 응용

• 영문명: An Application of Plasticity Model for Ice Deformation Characteristics
• 발행기관: 한국해양대학교 해사산업연구소
• 저자명: 최경식(Kyungsik Choi)
• 간행물 정보: 『해사산업연구소논문집』제1집, 117~125쪽, 전체 9쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 1991.05.01

영문 초록

The study focuses the mechanical deformation response predicted by the plasticity model for polycrystalline ice. To describe various deformation characteristics, ice is idealized as a perfectly plastic material using an asymtotic exponential failure criterion. This criterion is suited for describing materials which exhibit brittle deformation at low hydrostatic pressure and ductile deformation at high hydrostatic pressure. The results are compared to those of continuum damage mechanics model. Plasticity model shows good agreement with damage model and experimental results for high confining pressures even. at high strain-rates which is usually considered as a brittle condition under uniaxial compression.

목차

Abstract

서론

소성 모델의 정식화

손상역학(DAMAGE MECHANICS) 모델과의 비교

결론

참고문헌