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damage in composites

Postdoc (3 years) on numerical simulation of composite hydrogen tanks (Belgium)

Submitted by wvpaepeg on
job
composite materials
Composites
finite element analysis
Finite Element Method
simulations
simulation
hydrogen
damage in composites
multiscale modeling

[Net salary (after taxes) starting from 2900 EUR/month]

Belgium has been taking a leading position in the transition towards a hydrogen economy thanks to many companies and research institutes active in hydrogen technologies. In addition, Belgium has currently the second largest hydrogen pipeline network in the world and has a strategic position in Western Europe as an import and transit hub for renewable H2 molecules.

Composite crushing + CZONE application

Submitted by davidrbmelo on
research
composite materials
damage in composites
hashin
tsai-wu failure criteria ...
czone

Hello,


I am modelling a crushing simulation of a composite corrugated coupon using Abaqus/Explicit and CZONE Abaqus' application.

I am modeling the coupon using S4R elements and the impactor as a discrete rigid shell plate with a slow constant crushing speed or high initial velocity for quasi-static and dynamic crushing simulations respectively.

I am using Hashin damage in Abaqus/Explicit and Hashin and also Tsai-Wu on CZONE application.

Stochastic modeling of damage evolution in composites under environmental ageing

Submitted by rrahman on
research
research
damage in composites
stochastic modeling

Stochastic modeling of damage evolution in composites under environmental ageing

R. Rahman, A. Haque, Z. Wu


Journal of Engineering Mathematics

April 2013, Volume 79, Issue 1, pp 153-166

Abstract

Modelling of fiber failure in Abaqus

Submitted by parthchoksi on
Forums
Fracture Mechanics Forum
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research
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composite materials
damage in composites
failure Mechanics
Failure Criteria
Fiber Modelling of fiber failure in Abaqus ABAQUS, Fiber failure, failure criteria , Fiber Composite  , composite I am presently working on modelling of fiber failure inof a composite lamina on ABAQUS. After researching a lot, Even after researching a lot, I haven't been able to find a damage criteria which  can depict natural failure in of a fiber. I do not want to induce a crack in it and break it or put in a cohesive layer. I want to break it as it breaks naturally. 


Crack propagation in composites in presence of shear and pressure loads

Submitted by Roche on
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Fracture Mechanics Forum
Free Tags
damage in composites

Hi,

Assume that we have a composite structure consists of isotropic layers with a delamination (separation) between the layers. There is a compressive load

applying normal to layers surfaces and hence normal to the delamination (crack) which closes the delamination, and a shear load tangential to the crack surface.

the order of shear force is much smaller than the compressive load. can the delamination propagate du to this shear force?

Crack propagation in composites in presence of shear and pressure loads

Submitted by Roche on
damage in composites
crack propagation

Hi,

Assume that we have a composite structure consists of isotropic layers with
a delamination (separation) between the layers. There is a compressive load
applying normal to layers surfaces and hence normal to the
delamination (crack) which closes the delamination, and a shear load tangential to the
crack surface.

energy balance of surface-based cohesive of composite under impact in Absqus 6-10

Submitted by moustachiio on
education
ABAQUS
composite materials
damage in composites
Interface debonding; Size effect; Homogenization; Particulate composites; Constitutive equation
composite delamination

Hi there! I am really new to Abaqus and I need to model a composite
laminated crash cone under impact to a flat solid wall (analytical
surface is used). I modelled a cone with a layers of conventional shell
elements with hashin failure criteria and surface-based cohesive
behaviour as interaction between layers representing the interface of
composite laminates. The model runs successfully but once I checked the
energy balance, the damage dissipation energy from the cohesive, it
turned out to be NEGATIVE (I think this is wrong).

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