crack

I need to create a semi-elliptical surface crack in a cylinder using ANSYS. CTMOPT macro allows modeling and meshing of this type of crack, but I am struggling to get this. If anyone knows detailed information regarding this, kindly let me know.

Thanking you,

Ashish Joshi

Crack propagation & crack length?

Submitted by cubyong on Tue, 01/13/2009 - 01:34

Forums

Free Tags

Aide Needed in crack propagation with ANSYS

Submitted by salutsun on Fri, 11/21/2008 - 04:43

Hello,I'm a student in engineering. I wannto do simulation of the process of a cracked plate which is subjected to tensile stress at the each end of the plate and perpendicular to the crack plane. with ansys .( crack type I )

crack intiation and propagation while operates at some frequency (evaluate stress concentration)

Submitted by gevees_11 on Mon, 09/29/2008 - 08:45

Forums

Ask iMechanica

Choose a channel featured in the header of iMechanica

Free Tags

stress concentration at the crack initiation location while operates at 120Hz frequency.how to do using abaqus software tool.Is there any one previously worked in this area.kindly assist me to resolve this problem.

PHYSICS OF FRACTURE AND MECHANICS OF SELF-AFFINE CRACKS

Submitted by Balankin on Sat, 12/15/2007 - 00:09

crack

Fractal

fracrure

The physics associated with self-affine crack formation and propagation is discussed. Some novel concepts are suggested for the mechanics of self-affine cracks. These concepts are employed to model the crack face morphology and, in turn, to solve various problems with self-affine cracks. It is shown that linear elastic fracture mechanics (LEFM) is a special case of self-affine crack mechanics and should be used only in length scales larger than the self-alfine correlation length. The theoretical results are confirmed by available experimental data.

I wrote a batch file for Crack growth model for ANSYS but when the soution is running,ANSYS terminate itself...Why?

Submitted by kvdalmisli on Fri, 10/26/2007 - 14:14

Hello everybody,

I am searching precision of crack propogation in a bonded wafer double.I wrote a code but the problem is that when I want to solve it in ANSYS, the program is shutdown. I need help about it. Thanks for your helps...

Greetings

Volkan DALMISLI

P.S:The code is given below.

finish

/title,sphere wafer

/filname,sphere wafer

/clear,start

"Crack" versus "Fracture"

Submitted by Andrew Bunger on Fri, 10/26/2007 - 05:44

research

fracture mechanics

crack

It seems that within the field of fracture mechanics, some authors use "fracture" to refer to the mechanism of creating new surfaces within a body by breaking the material bonds and reserve the word "crack" for the sharp-tipped discontinuity that results from fracture of a brittle material. But it does not appear that this distinction is followed consistently throughout the literature, and perhaps different research areas within the fracture mechanics field use the two words in different ways.

Problem with Crack in Franc3d

Submitted by Dusan_Boocz on Wed, 10/24/2007 - 12:39

crack

regions

Hello Everybody

I´ve got problem with propagating the crack in two regions at the same time in Franc3d. I initialized the crack in one region and propagated it, but the crack is propagating only in one region, although the crack should be propagated also in second region. Can anyone help me, pleease? Which steps do I need to take to obtain the propagation in first and second region? It´s imposibble to initialize the same crack in two regions?

Thanx

How to include the surface effect aournd a nano-sized crack

Submitted by Jun LUO on Tue, 04/17/2007 - 02:31

Forums

Fracture Mechanics Forum

Choose a channel featured in the header of iMechanica

research

Free Tags

crack

surface stress

Dear Mechanicians,

I am reading some papers on the surface effects of nano-sized elements(bars,beams, plates, films) or defects(inhomogeneities, inclusions, cavities) these days. Some researchers have studied the surface effects on the stress state around a circular hole or an elliptic hole. I wonder if there is any research work on the surface effect around a nano-sized crack. Thank you!

Subscribe to crack