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Shock Analysis

Submitted by hijazi on

I want to do shock analysis on a 3D modle. Can anybody guide me how to do shock analysis in ANSYS. I only knew that DDAM tye is used in shock analysis but if anyone can guide me step by step i will be highly obliged. I dont know that how to add operational and nonoperational table of frequency Vs PSD after selecting DDAM type analysis.

 

What are the loading conditions required in Shock analysis???

Effect of Residual stresses on the Interfacial Fracture Toughness of polymer/Metal Interface

Submitted by shirangi on
research
fracture toughness

When a bi-material sample for the characterization of interfacial fracture toughness is manufactured, the sample is not usually stress-free at room temperature. If an interface between a metallic substrate and a polymeric adhesive is considered, there are essentially two sources of residual stresses for a dry sample at room temperature:

1-    The mismatch between the Coefficient of Thermal Expansion (CTE) of adhesive and substrate induces a concave or convex warpage, depending on the CTE values of the two materials.

workbench

Submitted by 501675891 on
research

hi,

i am satish. i am trying to calculate interference stress in interference fit with following dimensions.there is a difference b/w analytical and simulated results. here i am giving dimensions kindly inform to me the values of von misses and pressure at intereference.

shaft od=938.7378, core id=937.8, and core od=1138.2

E=2.1e5,m=.29and coe.of friction=.14

please... help me...

Thanks

satish

 

 

Complementary strain energy - Non-linearity

Submitted by ramdas chennamsetti on

Hi all!

I read that the "cmplementary starin energy of a structure is not equal to sum of the complementary strain energies of it's components, if there is non-linearity like geometric"

That means for e.g. if I consider a truss stucture subjected to loading so that it undergoes geometric non-linearity, then the sum of the complementary strain energies from members is not equal to complementary strain energy of the structure.

 I request somebody to explain why is it so??

 Thanks and regards,

- Ramdas

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