A Constitutive Model of Nanocomposite Hydrogels with Nanoparticle Crosslinkers
A Constitutive Model of Nanocomposite Hydrogels with Nanoparticle Crosslinkers
Qiming Wang, Zheming Gao
Email: qimingw [at] usc.edu
research
Beyond Wrinkles: Multimodal Surface Instabilities for Multifunctional Patterning
Beyond Wrinkles: Multimodal Surface Instability for Multifunctional Patterning
Qiming Wang, Xuanhe Zhao
Email: qimingw [at] usc.edu, zhaox [at] mit.edu
3 Research Fellowships at University of Southampton for a European Project on Smart Bearings
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Damage plasticity model for concrete failure CDPM2
Those involved in the modelling of the failure of plain/reinforced concrete using damage and plasticity might be interested in our webpage
http://petergrassl.com/Research/DamagePlasticity/CDPMLSDYNA/index.html
which we have created to support our concrete damage plasticity model CDPM(2) in LS-DYNA. You can find there a number of example input files, reports and our implementation of the model in the form of a user subroutine.
Concept of Yield Point or Elastic Limit?
A similar discussion on this forum raised many interesting point about- Stress or strain: which one is more fundamental?
http://imechanica.org/node/1001
On a similar note I would like to address this decade old fundamental question on how do we define yield point of a material?
Viscoelastic damping behavior of structural bamboo material and its microstructural origins
In this study, the intrinsic viscoelastic mechanical behavior of a hierarchical bio-composite, structural bamboo material, was experimentally investigated and correlated with its microstructural constituents and molecular building blocks. The macroscopic viscoelastic responses of bulk bamboo at ambient temperature and dehydrated condition were evaluated through dynamic compression experiments with various loading frequencies, whereas the localized viscoelasticity of bamboo's microstructural phases, viz.
Parallel computing for non-local damage model in abaqus
Hello all,
I am simulating epoxy damage using a non-local damage model through abaqus user subroutine UMAT.
Modeling with line spring elements to find failure pressure of steam generator tube
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Hello, All
I am trying to model steam generator tube of length 110 , radius 11mm, thickness 1.27mm. It has 2 axial cracks of length 6.35mm. length between 2 cracks is 0.254mm.
As line spring elements cannot be created using Graphical user interface I first need input file. So I modelled the tube with shell elements S8R without any crack (once this model will run I will get input file and can modify it). As per paper which I am following the fracture coalescence pressure is 60Mpa means at this pressure J integral exceed the critical JIc.
**Material Property**
group velocity Vs phase velocity
hi to all,
do anyone know about ultrasonic lamb wave group velocity and phase velocity and differences between them?
I appreciate it.
Finite Eigenstrains in Nonlinear Elastic Wedges
Eigenstrains are created as a result of anelastic effects such as defects, temperature changes, bulk growth, etc., and strongly affect the overall response of solids. In this paper, we study the residual stress and deformation fields of an incompressible, isotropic, infinite wedge due to a circumferentially-symmetric distribution of finite eigenstrains. In particular, we establish explicit exact solutions for the residual stresses and deformation of a neo-Hookean wedge containing a symmetric inclusion with finite radial and circumferential eigenstrains.