Material Point Method Applied to Fluid-Structure Interaction (FSI)/Aeroelasticity Problems

2010 ◽  
Author(s):  
Patrick Hu ◽  
Liping Xue ◽  
Shaolin Mao ◽  
Ramji Kamakoti ◽  
Hongwu Zhao ◽  
...  
Keyword(s):  
Fluid Structure Interaction ◽  
Material Point Method ◽  
Material Point ◽  
Point Method ◽  
Fluid Structure ◽  
Structure Interaction

Simulating Ice-Structure Interaction With the Material Point Method

2017 ◽  
Author(s):  
Yaomei Wang ◽  
Biye Yang ◽  
Guiyong Zhang ◽  
Yichen Jiang ◽  
Zhi Zong
Keyword(s):  
Yield Criterion ◽  
Ice Sheet ◽  
Material Point Method ◽  
Friction Angle ◽  
Complex Problem ◽  
Material Point ◽  
Point Method ◽  
Structure Interaction ◽  
Future Work ◽  
Large Deformation Problems

The process of ice-structure interaction is a complex problem which is influenced by the properties of both ice and the structure. In this paper, the material point method (MPM) is introduced to simulate the interaction between an ice sheet and a cylinder structure. MPM is efficient in solving history dependent and large deformation problems and has shown advantage in hyper-velocity impact and landslide issues, etc.. The constitutive relation of ice is based on elasto-viscous-plastic model with the Drucker-Pragers yield criterion. Ice follows the Maxwell elasto-viscous model before the yield criterion is reached and fails when the plastic strain surpasses the failure strain. Meanwhile, the constitutive model used in this work considers the effect of the Young’s modulus, Poisson’s ratio, density, temperature, cohesive force and internal friction angle of ice. A series of simulations are conducted and the results are in accord with existing theories. According to the comparison, the influences of ice temperature and penetration speed of the structure on the global ice load are testified. The numerical tests have proven the feasibility of MPM in simulating the interaction between an ice sheet and a cylinder structure. Future work in ice-structure interaction problems with MPM is also discussed.

Material Point Method and Adaptive Meshing Applied to Fluid-Structure Interaction (FSI) Problems

2013 ◽  
Author(s):  
Shaolin Mao
Keyword(s):  
Adaptive Mesh Refinement ◽  
Fluid Dynamic ◽  
Computational Cost ◽  
Material Point Method ◽  
Adaptive Mesh ◽  
Material Point ◽  
Point Method ◽  
Short Paper ◽  
Weak Formulation ◽  
Fluid Structure

Material point method (MPM) is a powerful tool to handle material large deformation, discontinuities, and material moving interfaces problems where typical finite element methods (FEMs) could be very expensive and frequently fail. Material point method, in essence, is a weak formulation of the Particle-in-cell (PIC) method which has been developed initially for fluid dynamic problems. Recent years have seen extensive development of algorithm and impressive applications of MPM in engineering problems. Compared to its big success in material and structure modeling, the application of MPM to multiphase flows and fluid-structure interactions (FSIs) problems is relative scarce, in particular, the studies of fluid-induced deformation and motion of solids are limited due to their highly computational cost. In this short paper we discuss the computational efficiency by combining MPM with the adaptive mesh refinement (AMR) techniques to simulate FSI problems. Several test cases of 2D and 3D fluid-solid coupling flow problems are simulated and analyzed. The comparison with previous simulation results is shown in detail.

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