研究简介Abstract
针对海冰在弯曲、压缩和与海洋结构物接触条件下的复杂破坏行为，采用物质点法在背景网格上求解运动方程，通过粒子上的弹塑性状态和损伤变量刻画变形、强度退化与碎块分离。研究重点在于数值框架的构建与验证，以及海冰破坏模式和载荷之间的联系。
This research applies the material point method to the complex response of sea ice under bending, compression, and structural contact. Elastoplastic constitutive behavior and evolving damage variables are tracked at material points, enabling a numerical description of deformation, softening, cracking, and fragmentation. The focus is on numerical validation and the connection between failure processes and loads.
研究方法与内容Methodology & Contributions
- 采用二次 B 样条形函数进行粒子–网格信息传递。Quadratic B-spline interpolation for particle–grid transfers.
- 结合 Drucker–Prager 屈服、非关联流动和软化损伤描述材料响应。Drucker–Prager yielding, non-associated flow, and softening damage.
- 使用单轴压缩与三点弯曲试验进行材料参数标定和数值验证。Parameter calibration and validation against uniaxial compression and three-point bending.
- 分析直立圆柱、锥体和船舶与海冰作用时的裂纹与冰载荷。Crack patterns and ice loads for cylinders, cones, and ships.
数值模拟与图片展示Simulation Gallery
下方图像为用于网站排版的示意素材。可替换为你自己的断裂云图、载荷曲线、模型快照或实际视频。These layout illustrations should be replaced with real fracture plots, ice-load histories, simulation renders, or videos from your work.
演示视频Video Demonstration
相关论文与资源Paper & Resources
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