Vinh Phu Nguyen
National University of Civil Engineering
Length scaleStatistical physicsMathematical analysisFinite element methodBrittlenessRepresentative elementary volumeMaterials scienceMaterial point methodExtended finite element methodPhase field modelsIsogeometric analysisApplied mathematicsMathematicsHomogenization (chemistry)Computer scienceFracture (geology)Cohesive zone modelMechanicsFracture mechanicsStructural engineeringDiscretization
96Publications
26H-index
2,434Citations
Publications 76
Newest
#1Alban de Vaucorbeil (Deakin University)H-Index: 5
#2Vinh Phu Nguyen (Monash University, Clayton campus)H-Index: 26
Last. Chi Nguyen-Thanh (Duy Tan University)H-Index: 2
view all 3 authors...
A simple and robust C++ code for the material point method (MPM) called Karamelo is presented here. It was designed to provide an open source, fast, light and easy-to-modify framework for both conducting research on the MPM and research using the MPM, instead of a finite element package. This paper presents the overall philosophy, the main design choices and some of the original algorithms implemented in Karamelo. Simulations of solids and fluids involving extreme deformation are provided to ill...
3 CitationsSource
#1Jianfeng Yang (Xi'an University of Science and Technology)H-Index: 6
#2Haojie Lian (TUT: Taiyuan University of Technology)H-Index: 13
Last. Vinh Phu Nugyen (Monash University, Clayton campus)
view all 3 authors...
Abstract The present work studies the Park–Paulino–Roesler (PPR) model, a unified potential-based cohesive zone model (CZM), for mixed mode I/II fractures in different ranked coals, including weakly caking coals, fat coals and anthracite, by using disk-shaped compact tension (DC(T)) tests and punch-through shear (PTS) tests. The PTS experiments showed that with the increase in coal rank, the initial shear stiffness and shear peak loads grow and the maximum tangential crack opening displacement (...
2 CitationsSource
#1Tushar Kanti Mandal (Monash University, Clayton campus)H-Index: 7
#2Vinh Phu Nguyen (Monash University, Clayton campus)H-Index: 26
Last. Alban de Vaucorbeil (Deakin University)H-Index: 5
view all 5 authors...
Abstract Thermally induced cracking occurs in many engineering problems such as drying shrinkage cracking of concrete, thermal shock induced fracture, micro cracking of two-phase composite materials etc. The computational simulation of such a fracture is complicated, but the use of phase-field models (PFMs) is promising as they can seamlessly model complex crack patterns like branching, merging, and fragmentation by treating the crack discontinuity as thin band of diffuse damage. Despite the suc...
2 CitationsSource
#1Tushar Kanti Mandal (Monash University, Clayton campus)H-Index: 7
#2Vinh Phu Nguyen (Monash University, Clayton campus)H-Index: 26
Last. Jian-Ying Wu (SCUT: South China University of Technology)H-Index: 21
view all 3 authors...
Abstract Hydrogen assisted cracking (HAC) usually causes premature failure of metallic materials and results in unexpected collapse of structures under the environmental exposure of hydrogen. Therefore, computational modeling of HAC is of paramount significance to quantify the adverse effects of HAC on the integrity and safety of structures. In this respect phase-field models for fracture are promising since they are able to seamlessly deal with complex crack patterns like nucleation, branching,...
Source
#1Jian-Ying Wu (SCUT: South China University of Technology)H-Index: 21
#2Yuli Huang (ARUP Laboratories)H-Index: 7
Last. Vinh Phu Nguyen (Monash University, Clayton campus)H-Index: 26
view all 4 authors...
Abstract One major merit of phase-field models for fracture is that cracks nucleation, propagation, branching, merging, coalescence and even fragmentation, etc., can be accounted for seamlessly within a standalone regularized variational framework. This fascinating feature overcomes the cumbersomeness in the characterization of non-smooth crack surfaces and the tracking of complex crack paths. However, the numerical algorithms frequently adopted in solving the coupled governing equations are not...
11 CitationsSource
#1Alban de Vaucorbeil (Deakin University)H-Index: 5
#2Vinh Phu Nguyen (Monash University, Clayton campus)H-Index: 26
Abstract The total Lagrangian Material Point Method (TLMPM) is an efficient formulation of the well known Material Point Method (MPM). Unlike the MPM, it is not subject to cell-crossing instabilities or numerical failure, and features better quadrature. However, the TLMPM is unable to model (no-slip) contacts seamlessly as the standard updated Lagrangian MPM. This paper presents a contact algorithm for the TLMPM able to model contacts with or without friction. Its performance is tested and compa...
3 CitationsSource
#1Tushar Kanti Mandal (Monash University, Clayton campus)H-Index: 7
#2Vinh Phu Nguyen (Monash University, Clayton campus)H-Index: 26
Last. Jian-Ying Wu (SCUT: South China University of Technology)H-Index: 21
view all 3 authors...
Abstract Fracture of composites consisting of isotropic matrix and anisotropic fibers is an essential problem in many engineering applications. The computational simulation of such a fracture is complicated, but the use of phase field models (PFMs) is promising. Indeed, in PFMs, sharp cracks are not treated as discontinuities; instead, they are approximated as thin damage bands. Thus, PFMs can seamlessly model complex crack patterns like branching, merging, and fragmentation. However, previous P...
7 CitationsSource
#1Chi Nguyen-Thanh (Duy Tan University)H-Index: 2
#2Vinh Phu Nguyen (Monash University, Clayton campus)H-Index: 26
Last. Jian-Ying Wu (SCUT: South China University of Technology)H-Index: 21
view all 5 authors...
Abstract A majority of physical models are written as partial differential equations. For most of these equations, analytical solutions cannot be obtained and they can be solved only numerically using e.g. the finite element method. To not waste time programming, it is vital for researchers working on state-of-the-art numerical methods to adopt a flexible, efficient, open source and research-oriented library designed to solve partial differential equations for their work. This paper describes su...
4 CitationsSource
#2Masaya Kawabata (Yokohama National University)H-Index: 1
Last. My PhamH-Index: 1
view all 4 authors...
An application of Arbitrary Lagrangian-Eulerian (ALE) method is used to generate the cutting pattern shapes of membrane structures. The initial patterning panels are selected as the projection of t...
Source
#1Vinh Phu Nguyen (Monash University, Clayton campus)H-Index: 26
#2Alban de Vaucorbeil (Deakin University)H-Index: 5
Last. Tushar Kandal Mandal (Monash University, Clayton campus)H-Index: 1
view all 4 authors...
Abstract Within the framework of the material point method, a generalized particle in cell method for explicit solid dynamics is presented. In this method, the solids are discretized by finite element meshes, and these meshes are embedded in a background Eulerian grid. The external and internal forces of the solids are calculated on their respective finite element meshes and are mapped to the background grid for solving the momentum equation. Two formulations for computing these forces are prese...
2 CitationsSource