Blog posts

According to the eigenstrain theory of micromechanics, described in the book by Toshio Mura (micromechanics of defects in solid, 1982) from page 15-20.

He provided the formulas for the eigenstrain at the core of screw and edge dislocation, but I can not understand completely.  

Anybody can provide some reference articles about the gradient value du(i)/dx(j) at the core of screw and edge dislocations respectively?  

In this study, FEA using Abaqus is combined with statistical and probabilistic analysis using Isight to demonstrate how these techniques work together to evaluate the robustness of medical device designs.

This paper presents helical buckling analyses are performed primarily to determine the critical effective axial load at which the inner pipe of a pipe-in-pipe (PiP) system snaps into a sinusoidal or helical buckling deformation mode.

The work presented demonstrates how Isight may be used to drive STAR-CCM+ and CATIA V5 for parametric optimization. A key requirement from the OEM was to remove time-consuming manual iterations from the design process and this example case was setup to demonstrate the automatic optimization process using their existing design and analysis tools.

This study allows mechanical engineering models to be used in place of legacy constructive solid geometry descriptions, which are far less sophisticated. This capability also allows for the seamless integration of radiation transport calculations with analysis of the resulting thermal and mechanical effects on materials.

The objective of the present study was to develop and validate an explicit FE model of the lumbosacral spine and the FSU L4-L5 using patient-specific in vitro data and to evaluate load-deflection characteristics, contact mechanics and efficiency of the FSU. It is also to create a probabilistic model to efficiently predict the performance of the FSU by incorporating disc and ligament material variability.

The application of the CEL method significantly enhances the capability of the compaction model for simulating multiple machine passes on level ground and slopes, traction behavior under large wheel slip, as well as blade dozing operations. It includes also some application examples for optimizing the design of a new generation of landfill compactors.

This study consists of an Isight application with the aim of automation and optimization of a structural design process of the SAR Plate Assembly. The multiobjective optimization problem that regards this specific helicopter component is handled through the use of 4 different genetic algorithms.