research

P. Zhang, L. Ma, F. Fan, C. Peng, P.E. Loya, Z. Liu, Y. Gong, J. Zhang, X. Zhang, P.M. Ajayan, T. Zhu, and J. Lou
Nature Communications, Vol. 5, article number 3782, 2014. DOI: 10.1038/ncomms4782

http://www.nature.com/ncomms/2014/140429/ncomms4782/full/ncomms4782.html

why the mass matrix of my structure is unsymmetric?

Submitted by Yanhai on Tue, 04/29/2014 - 17:32

research

I'm doing an research about a cantilever which can undergoes large rotations along two directions. At the head of the cantilever there is a magnetic particle. When I establish the dynamic model for this cantilever, I just consider the mass of the particle(since the mass of the beam is small). However after I obtian the mass matrix (6 by 6, six DOFs), i found it is not symmetric. I don't know the reason. Can anyone help me? By the way, if the beam undergoes large rotation, will the stiffness matrix(tangent matrix) at each state keep symmetric ? Thank you

Modeling of Particulate Composites

Submitted by Yogesh_Bisht on Tue, 04/29/2014 - 16:50

Forums

Ask iMechanica

Choose a channel featured in the header of iMechanica

Free Tags

I am trying to model particulate composites and simulate their stress-strain response. The problem that I am facing is that the inclusions (stiffer than the matrix) are only acting as points of stress concentration. Consequently their is no strengthening and hence no apparent increase in load carrying capacity of the composite. Any help/suggestioin in this regard would be higly appreciated.

Regards

Modeling RVE with Interfaces

Submitted by prathyush963 on Tue, 04/29/2014 - 14:02

Hi All,

PYTHON SCRIPTS FOR ABAQUS :LEARN BY EXAMPLE

Submitted by thoura on Tue, 04/29/2014 - 10:43

research

Hello, Please Do you have this full book:

PYTHON SCRIPTS FOR ABAQUS: LEARN BY EXAMPLE

Gautam Puri

Force-driven evolution of mesoscale structure in engineered 3D microtissues and the modulation of tissue stiffening

Submitted by ruogang zhao on Mon, 04/28/2014 - 16:12

Force-driven evolution of mesoscale structure in engineered 3D microtissues and the modulation of tissue stiffening

Ruogang Zhao, Christopher S. Chen, Daniel H. Reich, Biomaterials, Vol. 35, Issue 19, June 2014, Pg 5056–5064

http://www.sciencedirect.com/science/article/pii/S0142961214001604

Abstract:

MULTISCALE QUASICONTINUUM APPROACHES FOR DISCRETE MODELS OF FIBROUS MATERIALS SUCH AS ELECTRONIC TEXTILE AND PAPER MATERIALS

Submitted by Stephane Bordas on Mon, 04/28/2014 - 15:02

http://orbilu.uni.lu/handle/10993/15356 http://orbilu.uni.lu/bitstream/10993/15356/1/Abstract_Beex_WCCM2014.pdf

High order isogeometric cohesive elements for delamination analysis

Submitted by phunguyen on Mon, 04/28/2014 - 09:20

research

delamination

Isogeometric Analysis

B-splines

high order NURBS

Please find attached two recent papers on the use of high order B-splines/NURBS cohesive interface elements for an efficient modeling of delamination of composite laminates.

Subscribe to research