We have read some papers of stroh formalism and the textbook of Tom Ting, and found that the stroh formalism and the hamilton system proposed by prof.zhong wanxie had some relation. We want to know whether the stroh formalism is enough for the analysis of the anisotropic elastic? Thus's to say, for some problems could not give the satisfied answer which we may try the hamilton framework. I briefly compare the two methods as follows:
Can anybody tell me in determining the SIF using domain form, How can I determine the domain A and what are the factors which determines the radius rd about crack tip for the determination of domain A.
This paper revisits continua with microstructure from a geometric point of view. We model a structured continuum as a triplet of Riemannian manifolds: a material manifold, the ambient space manifold of material particles and a director field manifold. Green-Naghdi-Rivlin theorem and its extensions for structured continua are critically reviewed.
I am using an MPC subroutine (ABAQUS Standard) that will allow me to release nodes along the line of symmetry which also happens to be my defined crack-path when the strain at that point crosses a critical value. This is to simulate crack propagation using the Critical Plastic Strain Fracture Mechanics Model (CPFSM) / Rice-Tracey model.
I am having trouble in defining the MPC in my *.inp file as I am unaware of as to how to define the nodes upon which I intend to impose the MPC. The manual instructs one to type the individual nodes following the command line:
I am trying to model the air inside a 195/65 R16 radial car tire using ABAQUS(6.6.1). I am interested in knowing the air cavity volume and pressure change due to vertical loading. I think fluid elements are the way to go.
I would appreciate pointers with regard to creating fluid elements (examples, input files etc..) as ABAQUS/CAE does not support this feature.
I've mostly had quite helpful responses from iMechanica participants whenever I've asked questions on this forum. However, I've noticed that questions from several posters have gone unanswered. I feel that there are two main reasons for that lack of response:
1) The questioner has not provided an adequate details by which they can be identified. I generally don't like responding to a question posed by someone called xyz1983.
Dear Mechanicians,
Do you know how to predict the mechanical properties of wire after being drawn with several dies ? especially with Duplex stailess steel material.
A postdoc position in multiscale stochastic computation will be available in Fall 2008. Experience on finite elements, multiscale methods, high performance/parallel computing, or computational fracture/damage modeling is desired. Please contact:
X. Frank Xu, xxu1 [at] stevens.edu (xxu1[at]stevens[dot]edu)
