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How to analysis Fatigue of shaft using Ansys or Ncode designlife?

Submitted by vinhphoi on
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Computational Mechanics Forum
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thin film

I use ANSYS APDL with code for my shaft with two coating layers(interlayer and coating layer). I already analysis stress of shaft with Ansys. the result is ok and i exported to .RST file. But , when i input my shaft to Ncode, I can't find the interlayer and coating layers.I think this shaft have 3 part(subtrate, interlayer, coating layer)
!substrate materials

Young's modulus (Mpa): 2.1e5
Poisson's ratios:0.3
Density(ton/mm3):8.03e-9

! interlayer material

Young's modulus (Mpa): 3,2e5
Poisson's ratios:0.31
Density(ton/mm3):8.908e-9

Yield behaviour of trabecular bone

Submitted by Lee Margetts on
research
bone microstructure
homogenisation
Finite Element Method
3D Xray tomography

A recently published paper  "Evaluating the macroscopic yield behaviour of trabecular bone using a nonlinear homogenisation approach" links the micromechanics of bone to its macroscopic behaviour. The paper may be of interest to colleagues on this forum. The abstract is provided below.

Abstract:

Fracto-emission in lanthanum-based metallic glass microwires under quasi-static tensile loading

Submitted by Yang Lu on
research
Fracture mechanics; non-linear stress-strain behavior; metallic glass; microwire; in situ SEM testing; nanomechanics; fracto-emission

Plastic deformation in metallic glasses is highly localized and often associated with shear banding, which may cause momentary release of heat upon fracture. Here, we report an explosive fracture phenomenon associated with momentary (∼10 ms) light emission (flash) in Lanthanum-based (LaAlNi) metallic glass microwires (dia. ∼50 μm) under quasi-static tensile loading.

2016 Ted Belytschko Applied Mechanics Award - Professor Andrea Prosperetti

Submitted by Executive Comm… on
research
AMD awards
asme
Applied Mechanics Division
Belytschko Applied Mechanics Award

The Executive Committee of the ASME Applied Mechanics Division is pleased to announce and congratulate Professor Andrea Prosperetti, Charles A. Miller, Jr. Distinguished Professor of Mechanical Engineering, Johns Hopkins University, as the recipient of the 2016 Ted Belytschko Applied Mechanics Award.

2016 Thomas J.R. Hughes Young Investigator Award - Professor Pedro M. Reis

Submitted by Executive Comm… on
research
AMD awards
asme
Applied Mechanics Division
Hughes Young Investigator Award

The Executive Committee of the ASME Applied Mechanics Division is pleased to announce and congratulate Professor Pedro M. Reis, Gilbert W. Winslow Associate Professor, Massachussetts Institute of Technology, as the recipient of the 2016 Thomas J. R.

3 Research Fellowships at University of Southampton for a European Project on Smart Bearings

Submitted by lwang on
research
sensors
Energy Harvesting
wireless communication
smart bearings

Looking to take the next step in your academic career? Look no further – three exciting opportunities are available for ambitious researchers to join the UK’s most dynamic research groups for engineering research and education. 

Damage plasticity model for concrete failure CDPM2

Submitted by grassl on
research
concrete
concrete damage plasticity
Constitutive model

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.

 

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