The fatigue behavior of Ag films on polyethyleneterephthalate substrates was studied using electrical resistance measurements.
Scanning electron microscopy images showed two types of failure: typical fatigue failure with extrusion–intrusion pairs, and ductile
failure with local necking. Once through-thickness cracks are formed in the metal layer, cracks propagate and the resistance increases abruptly for both failure modes. The effect of adhesion on fatigue life is discussed in terms of concurrent delamination, crack initiation and propagation.
Dear Colleagues,
We are pleased to invite you at mini-symposium Creep and Thermo-Mechanical Fatigue within
the 4th Canadian Conference on Nonlinear Solid Mechanics at McGill University (July 23-26,
2013, Montréal, Canada).
Register today to book your place at this prestigious conference, which has attracted over 290 abstracts. This is a significant opportunity for you to join leading researchers to exchange and discuss new ideas and findings. http://www.fatiguedamageconference.com/conference-register.html
One postdoc and several PhD student positions are available at Arizona State University for fall 2012. Research background in at least one of the following areas is preferred.
1. Fatigue and fracture of materials and structures
I wanted to simulate fatigue crack growth in ls-dyna, obtain dK, crack tip stress fields. But I wanted to start from a simple model. I can't find any examples online, tutorial...
I am trying to do Low cycle fatigue analysis in abaqus, and
according to the Documentation, for bulk material damage initiation and damage
evolution definition, I can use the criteria (and type for Damage evolution) as
"Hysteresis Energy". And have to define 4 material variables C1 to
C4.
But in the abaqus material library (in abaqus-CAE) i could find
all the other criteria but not the "Hysteresis energy". I also tried
to define it in the *.inp file but abaqus could not read it (apparently wasn't
writing it correctly).
I am trying to do Low cycle fatigue analysis in abaqus, and
according to the Documentation, for bulk material damage initiation and damage
evolution definition, I can use the criteria (and type for Damage evolution) as
"Hysteresis Energy". And have to define 4 material variables C1 to
C4.
Endurica LLC (www.endurica.com) is a growing, high-technology, small business startup with customers in the defense, heavy equipment, offshore, and automotive sectors. We deliver world-leading solutions and services for managing elastomer durability issues at the conceptual / CAE stage. We are located in Findlay, Ohio.
We are seeking a full time Engineering Analyst to develop and execute analysis projects, and to support customers in their applications of Endurica’s fatigue analysis technology.
The deadline to submit article for the CSME international congress has been extended to February 17th, 2012. We are organizing a symposium on fatigue and fracture of engineering materials and strongly encourage researchers around the world to submit their research articles relevant to this field.
After a long process (somebody may recall I made also quite some chaos on imechanica to complain with the review process in a previous journal), this paper was accepted. Ask me a preprint if you are interested. I can attach here a few images only.
M. CIAVARELLA
Politecnico di Bari, 70125 Bari, Italy
Received in final form 13 June 2011
Failure of railway axles has been the problem which gave origin to the studies about 'fatigue'. The modern approach to the structural integrity of these safety components is to complement the traditional designwith a 'damage toleranc' analysis.
I am currently having difficulty modelling fatigue analysis on a wheelchair frame with hollow circular sections (pipe 16). When assigning the stress locations it says that the stress is not available for that node.
Even Jay Leno tried to understand fatigue cracks at his Yesterday’s Tonight Show, our research on fracture and failure mechanics is received great attention from the general public. Read more after this photo--
One postdoc and several PhD student positions are available at Clarkson University. Research background in at least one of the following areas is preferred.
1. Fatigue and fracture of materials and structures, computational mechanics and numerical methods
2. Probabilistic methods, Bayesian statistics, reliability and risk assesment
3. Structural dynamics, health monitoring, signal processing, system identification
Raiway axle failures have been the starting point for the studies on fatigue. However, recent accidents and papers (see [1] by Hoddinott) have shown that corrosion-fatigue plays a significant role.
At PoliMi we have recently investigated this topic finding interesting results by corrosion-fatigue tests on small-scale specimens and, recently, a validation of the model by full-scale corrosion-fatigue tests (see papers [2-3]).
Recent comments