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Crack propagation in gusset plate subjected to dynamic stress time history

Submitted by mahendra18 on
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Fracture Mechanics Forum
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Hello everyone,

I want to analyse the inspection interval for the crack propagation in a gusset plate of a truss joint subjected to dynamic loading. I have the dynamic stress time history acting on the plate. Since I am new to abaqus I dont have much idea how to model the crack in the plate.Please kindly help me with this.

 

Thanks and regards,

Mahendra.

Can it produce negative damping when a rigid disc vibrating on a porous medium?

Submitted by Rui He on
research
porous medium
disc vibration
negative damping

 I tried to solve the problem
that a rigid disc under harmonic moments resting on a porous half-space, the
porous medium is modeled using Biot's theory, when I consider the disc as
totally impervious, I found from the numerical results that negative damping
appears when the permeability of the porous medium is very low at a small
exciting frequency. I have no idea whether this is possible, can someone give
me some suggestions? Thanks very much.  

Two PhD positions on experimental and computational multiscale mechanics at Eindhoven University of Technology, the Netherlands

Submitted by Johan_Hoefnagels on
research
multiscale mechanics
computational homogenization
experimental micromechanics

Our Mechanics of Materials Group at Eindhoven University of Technology, the Netherlands has two openings for talented PhD students in the field of multiscale mechanics of materials. They are part of a European Union funded project on multiscale methods for advanced materials. One opening is on the development of a fundamentally new multiscale approach towards material modelling and the other aims to integrate this approach with experimental methods.

Post-Doc Position: Colloids in polymer systems: Numerical studies and simulations

Submitted by ajmal.choudhary on
research
MD
polymer
post-doc
material science
Ab initio
colloids
numerical simulations
phase-field
FEM models

Post-Doc Position: Colloids in polymer systems: Numerical studies and simulations

 

The Material and Process Simulation group at the University of Bayreuth is offering a

1 Post-Doc Position TV-L E13 (m/f)

Colloids in polymer systems: Numerical studies and simulations

 

Ashby PhD Scholarship in the Mechanics of Materials at Cambridge University, Department of Engineering

Submitted by Helen Gardner on
research

A fully funded PhD scholarship exists in the area of mechanics of
materials, endowed in honour of Prof M F Ashby. The successful
applicant will have a 1st class degree (and ideally a Masters degree) in
Engineering solid mechanics or in Engineering materials. The precise
topic of the PhD can be fixed after the scholarship has been awarded.

Substructure Generation in ABAQUS

Submitted by Valdemar9000 on
research
ABAQUS
substructure
damping matrix

Hi,



I have created a substructure in Abaqus. As output, I will like to see the substructure matrices (mass, stiffness and damping matrices). However, I'm only able to write the mass and stiffness matrices to an output file (*.mtx).



Does anyone know how to create an output file including both the mass, stiffness and damping matrices of the substructure? Below, I have shown what I have written in the input file (*.inp).



Thanks in advance,



Mads



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