Skip to main content

education

Disparity in Simple Shear solution in ABAQUS

Submitted by Anonymous (not verified) on
Forums
Computational Mechanics Forum
Choose a channel featured in the header of iMechanica
education
Free Tags
Plasticity
ABAQUS
large deformation
simple shear

Dear All,

We tried to simulate simple shear using ABAQUS and compared it with the analytical solution. To our surprise, even though the equivalent stress and strain matched perfectly, the component stress and strain had a large deviation between the semi analytical and ABAQUS methods. The zero components in the analytical model were calculated to be non-zero in the results of ABAQUS. This paradox could not be understood clearly as whether it is a case of software deficiency or conceptual error. A COMPLETE ANALYSIS OF THE PROBLEM IS ATTACHED AS A REPORT.

 

Mode II strain energy release rate

Submitted by Khong Wui Gan on
Forums
Ask iMechanica
Choose a channel featured in the header of iMechanica
education

Hello guys,

I have a silly question. We all know that mode II strain energy release rate was given as GII=KII^2/E for linear elastic material. My question is why E (Young's modulus) but not G (shear modulus) appears in the equation, because Mode II crack propagation is attributed to the shear stress. On the other hand, it seems self-explanatory that we use E for mode I and G for Mode III.

I just wonder if there is a simple explanation to that.

Gan

Mechanics of Materials: Textbook Recommendation

Submitted by vicky.nguyen on
education
textbook
fracture
Plasticity
fatigure

I will be teaching a sophomore level class  mechanics of materials class.  The class will cover mechanics of basic strength of materials (e.g. beams, pressure vessels), but I also want to teach basic elements of failure mechanics (fracture, fatigue, plasticity, and wear.)  I'm looking for a recommendation of an undergrad mechanics textbook that covers the fracture, fatigue, plasticity, and wear.  The students will have had a statics and mechanics class and their textbook already covers strength of materials.  Thanks.

Problems with cohesive zone. Does it make sence to use them here?

Submitted by schurik01 on
Forums
Ask iMechanica
Choose a channel featured in the header of iMechanica
education
Free Tags
cohesive zone model

Hey I've got a beam and between two different materials i'm thinking to
put a cohesive zone with "weaker" material properties. Does it make
sense to use cohesive zone models?

 

My model is looking like this now. But I don't know what's wrong. It
seems taht the whole force/displacement is lost in the cohesive zone. 

If somebody can help that would be very nice

 here the pic: http://f.666kb.com/i/bnody4selpc6iml9m.jpg

Thanks for advance

 

please send me afgrow software

Submitted by johnsmart1987 on
education

hi friends am in need of afgrow software for my project . of crack propagation ...of plasticity induced fatigue crack closure. for this am in need of afgrow software..................................... if anybody havin afgrow software plz mail me . my id is (johnsmart1987 [at] gmail.com) plz do me tis help ........with tat software only  im goin to proceed on with my project plz need help

FSI Analysis of a Simplified Turbine Using a Sliding Mesh in ADINA

Submitted by Mustafa Taşkın on
Forums
Ask iMechanica
Choose a channel featured in the header of iMechanica
education

Hi all,

I exercised "Prob37: FSI analysis of a simplified turbine using a sliding mesh" ADINA tutorial. I got an error message and the program stopped solving.

The error message:

ERROR CODE ADF2075

"-R option cannot be used for adaptive-mesh or sliding mesh. You can use -m, -M options."

What are the -R,-m, -M options? How can i solve this problem? 

Looking for a Phd. position in Computational Solid Mechanics and Materials.

Submitted by Manjesh on
education
research
Seeking PhD positions

I am a final year Master of Engineering student at Materials Engineering Department, Indian Institute of Science. I have done my Bachelor of Engineering in Mechanical Engg. from Bengal Engineering and Science University, West Bengal, India. Currently I am working on my ME project "Simulation and Validation of Roll-Separating force and Limiting Reduction in Cold Rolling", under Prof Vikram Jayaram, Materials Engg Dept. and Prof S.K.Biswas, Mechanical Engg. Dept, IISc., Bangalore. After completion (June, 2011) of my ME, I want to do Phd.

Subscribe to education