research
Survey on XFEM: is XFEM good at characterizing Failure rather than Fracture?
Would like to hear your expertise/user/non-expert/sceptic comments on XFEM. Here are some of the challenges. Would like to hear your relections.
1. Can XFEM be utilized in characterizing Failure rather than Fracture?
2. What sort of challenges XFEM still have with respect to Fracture Mechanics?
3. How the Fracture mechanics benefit the industry, from the perspective of strcutural integrity?
4. Failue investigations vs. Fracture investigations: benefit to industry?
5. Academist vs Engineer: Perspective on XFEM
Water Content In Exhaust Gas (Diesel Fuel)
Hi everyone,
I would like to know if anyone would be able to help me calculate(or measure) accurately the Moisture Content / Water vapour content in the Exhaust Gas of an Engine.
I would like to know if anyone would be able to help me calculate(or measure) accurately the Moisture Content / Water vapour content in the Exhaust Gas of an Engine.
I wish to determine the components of the Exhaust Gas for a Combustion Chamber(so that I am able to calculate the Gas Constant of the Exhaust Gas) and
I have been able to measure the values of Oxygen(in %), Carbon di oxide(in %), Carbon monoxide(in PPM), NOx (in PPM).
Crack length in fracture mechanics
Hi,
I have modeled a beam with a hole in it in ABAQUS. I use of FRACTURE MECHANICS and FINITE ELEMENT METHOD for perdiction of failure load of beams with holes. I am wondering is it a correct assumption to assume a fixed crack length for one beam with varying hole position or not?
It have assumed that a fixed crack length for a beam with varying location of hole along the beam.
Am I correct?
Thank you,
Manooir
Stiffness of a beam
Hi,
As a part of my research, I would like to break down a simply supported beam to two beams shown in the attachement. I expect to remove the bond and use of springs for transforming deformation of upper beam to lower beam. What could be the stiffness of springs which could be used in new model?
Thank you for your comment,
Parisa
Operations with sparse matrices
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Dear mechanicians,
I'am a phd researcher on the field of
computational mechanics. I want to solve a linear system of equations [A]
{x} = {b} with PCG method. With the help of a very illuminating
book "Iterative Methods for Sparse Linear Systems" by Yousef Saad, I manage to
write an algorithm in Fortran90 language. But i have one problem... I
store A matrix in symmetric skyline format (upper triangular). I
notch tip radius
Hello everyone,
I am looking for a way to measure notch tip radius experimentally. Would you give me some ideas about that? is there any relationship between morphology of notched cracked body surface and notch tip radius?
Thank you and Regards,
What is the equation of formula to calculate flexural rigidity of RC Slab
Dear eveyone,
I need to know the formula or expression to calculate the flexural rigidity (D) of RC Slab reiforced with steel bars. I know that for plain concrete, D can be taken as Et3/12(1-v2). However, I have no idea what is D when steel bars are added to slab. I really appreciate for any kind help. Thanks