How to reduce liquation cracking in super austenitic stainless steels ?

Super austenitic stainless steel castings showed liquation crack after liquid penetrant testing post heat treatment. How to reduce this in thick walled castings.

26 December 2020 7,959 3 View

How to prevent hot crack/hot tear defect during the solidification of Cu5MCuC Inconel alloy ?

The Cu5MCuC Inconel casting produced by pouring into a sand mold seems to have developed several hot tears/hot cracks. The cracks opened up after heat treatment. How the tears/cracks could be...

01 November 2020 190 5 View

Could someone kindly provide me insights on books/science papers/tutorials (paid or free) on Randomised Design of Experiments (RSM Methodology)?

Looking for materials involving information (Basics to advanced) on Randomised Response Surface Methodology Designs for optimisation problems in engineering.

24 June 2020 8,751 9 View

How to Identify the vertices of a polyblock in monotonic optimization?

I want to use the Polyblock Outer Approximation(PA) Algorithm to solve a monotonic maximization problem. By exploring the hidden monotonicity property, was able to represent the problem in the...

12 February 2020 3,360 1 View

How do I interpret the below test for Uni-variate normality?

Hi, I have a large data sample with 15k rows and I am trying to perform uni-variate normality analysis on the dataset. I have come to understand that normality tests are really sensitive towards...

11 March 2019 3,041 4 View

How can we evaluate the percentage of carbon fibre present in a composite moulded part made from carbon fibre and Nylon?

I have a component made up of Nylon and carbon fibre and it is moulded. Can someome please explain how to evaluate the quantitative percentage of carbon fibre present in this composite. I know the...

20 March 2018 6,949 15 View

Can you suggest me " how to isolate some organisms which can show larvicidal activity?

Can you suggest me " how to isolate some organisms which can lyse insect larvae other than B.thuringiensis and B.sphearicus ?

31 December 2017 369 7 View

How to calculate J integral using domain integral method?

Hi, How to calculate 3 components of j integral using domain integral method.

14 May 2017 280 3 View

How to calculate displacement gradient matrix?

Hi, Is it possible to calculate displacement gradient matrix from strain tensor and gauss point co- ordinates

10 April 2017 6,741 3 View

How to calculate the Orthocenter of triangle?

28 February 2017 8,762 3 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

How to assign different material properties to each element in Abaqus ?

Hello, I am writing a python script to generate my model and write the input file. The problem is I have 1000 elements in my mesh and I want to assign different material properties to each...

01 March 2021 9,511 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

How to modify Johnson cook equation in ABAQUS?

I wanted to add an extra parameter to the existing Johnson cook equation in the ABAQUS simulation. How to add those extra parameters. Ref: A modified Johnson-Cook material model with strain...

28 February 2021 4,841 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View

How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials?

Hi, all! How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials? I have not find the choice for explicit element in Abaqus CAE. I am wondering whether it is possible...

25 February 2021 9,936 2 View

Is it possible to do optimization for a submodel in Abaqus?

I'm trying to run an optimization in Abaqus for a submodel with no luck, jobs are not being create for submission. Is this even possible? or is Abaqus limited to do Opt. for the model itself...

24 February 2021 4,908 5 View