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Mechanisms of fatigue crack growth – a critical digest of theoretical developments

Submitted by Piyas Chowdhury on

Improtance of modeling fatigue damage propagation is substantial given the ubiquity of fatigue-induced component failures across industries. A review of fatigue crack growth models along with a detailed discussion of recent experimental findings (substantiating the model assumptions) are presented (please see the pdf attachment below)

Recent advances in modeling fatigue cracks at microscale in the presence of high density coherent twin interfaces

Submitted by Piyas Chowdhury on

Various outcomes of slip-coherent twin boundary depending on the stress state and slip geometry (during the growth of a microstructurally short crack)

 

Post-doctoral fellow at University of California San Francisco Medical Center and San Francisco VA

Submitted by elainetseng on

The Cardiac Biomechanics Laboratory at the University of California San Francisco Medical Center (UCSF) Division of Cardiothoracic Surgery and San Francisco VA Medical Center is seeking a hard working, motivated post-doctoral fellow to participate in biomedical engineering research involving the ascending thoracic aortic aneurysms (aTAA).  The post-doctoral fellow should be motivated to be on a career track to become an academic professor.  Our lab is NIH funded to investigate the biomechanics of aortic aneurysms and currently has 2 postdoctoral fellows, and are seeking a 3rd.&nbs

Applied Mechanics Division – Haythornthwaite Foundation Research Initiation Grants 2016

Submitted by Executive Comm… on

With funding from the Haythornthwaite Foundation, the Executive Committee (EC) of the Applied Mechanics Division (AMD) of ASME is pleased to announce the establishment of the Haythornthwaite Research Initiation Grant Program, targeting university faculty engaged in research in theoretical and applied mechanics that are at the beginning of their academic careers. Applicants must hold a tenure‐track appointment at the rank of Assistant Professor at a US university on October 1, 2016, and must not be more than 5 years beyond receipt of their doctoral degree at the time the award is made.

SIF analytic Solution (Mode I and/or II) for Tubes

Submitted by jorgegdiaz on
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I was wondering if anyone knows of an analytic Solution for KI and/or KII in tubes.

I´ve seen an infinite number of equations, shape functions, FEM simulations, standards, etc. But one closed solution for tubes?, an analog to Williams series but for cilindirical surfaces?

Dynamic friction in sheared fault gouge: implications of acoustic vibration on triggering and slow slip†

Submitted by Ahmed Elbanna on

Friction and deformation in granular fault gouge are among various dynamic interactions associated with seismic phenomena that have important implications for slip mechanisms on earthquake faults. To this end, we propose a mechanistic model of granular fault gouge subject to acoustic vibrations and shear deformation. The grain-scale dynamics is described by the Shear-Transformation-Zone theory of granular flow, which accounts for irreversible plastic deformation in terms of flow defects whose density is governed by an effective temperature.

Fatigue design and maintenance of railway axles

Submitted by S. Beretta on

The ESIS Technical Committee 24 provides a forum for researchers and engineers who deal with structural integrity problems in modern railway system. During our latest meeting, held on 1-2 October 2014 at Politecnico di Milano, excellent talks presented results obtained within different research projects, including  EURAXLES - EBFW3  and SUSTRAIL.

Int. J. Fatigue, Vol. 86, 2016