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MRS Symposium KK: "Structure-Property Relationships in Biomineralized and Biomimetic Composites". Call for Abstracts

Submitted by Pablo Zavattieri on

Deadline for Abstract submission: November 3. See www.mrs.org/spring2009.  A symposium entitled "Structure-Property Relationships in Biomineralized and Biomimetic Composites " will be organized at the MRS-spring meeting in San Francisco next year (April 13-17, 2009).

abaqus question

Submitted by maryammohammadi on

I'M USING ABAQUS IN MODELING A BEAM UNDER flexural, "BENDING".   my problem is the concrete material model with tension stiffening. my problem is occured repeatedly for all element types.

Although, i imported the input files obtained from the ABAQUS ducomentaion for support; the same error obtained.. the programe message is

The plasticity/creep/connector friction algorithm did not converge at 10 points

Spectrum Analysis in ANSYS

Submitted by hijazi on

Hi all,

 

After untyring efforts i was able to do modal analysis and i am happy that alot people are helping at this forum. Now the problem i am facing is that after modal analysis i am carrying our spectrum analysis. I have selected PSD as my spectrum analysis. I have all the statistical data of PSD table i.e Frequency Vs PSD. After entring the PSD table i have to apply the boundary conditions. I use following path to for Boundary Conditions.

Main Menu>>Preprocessor>>loads>>Define loads>>apply>>structural>>spectrum