02 February 2017 3 3K Report

I searched in possible PhD topic in VAWTs especially the structural mechanics or optimization however most of things I 've found are related to aerodynamics only. 

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What is acceptable range of pressure in vacuum bagging resin infusion?

I need to know name of standards that provide allowed vaccum pressure in resin infusion.

02 March 2019 4,145 1 View

What are the best mesh quality criterion for inspection element quality?

I know about mesh density, skewness, wrap angles, and aspect ratio. Per literature, aspect ratio is a quick tool to define quality of mesh. Is there a rule of thumb for acceptable values of...

01 February 2019 2,623 5 View

How to determine the delamination critical stress in sandwich panel with laminates skins upper and bottom?

I study the delamination of laminates upper and bottom skins of honeycomb composite structure simple supported from two sides and under bending stress. I consider the developed tension on the...

01 February 2019 4,254 2 View

What is impact of elements overlapping on the accuracy of solutions?

In FE some elements are overlapping. I read a paper says thst such overlapping causes higher in plane stiffness only. I wonder does the impact on accuracy of solutions very big?

01 February 2019 10,022 7 View

What are the important features in acoustics emission signals?

I do some experiments in using AE method to detect events. I can plot a lot of figures such as hits, signal strength, waveform, counts, events so on. Which data shall I concentrate on? A little...

31 December 2018 6,787 10 View

How can I start implementing method of moving asymptotes?

I'm a little bit confused in regard of implementing MMA method. Should I transform the objective function into a Taylor series in order to use this method? Most of tutorials explain the...

31 December 2018 8,034 4 View

How can I get rid of elements overlapping in a knot for a finite element model??

I have developed a honeycomb sandwiched structure in Salome platform, meshed with netgen 2D, then calculated the compression stresses on it using Calculix open source FE. I tried to optimise the...

11 December 2018 1,075 1 View

What are the main considerations in injection mold designing and calculations?

I'd like to know the main parameters that should be considered in designing of injection mold. Also, I need to know a source for standardized calculations.

01 February 2018 755 4 View

How can I start learning Calculix coding?

I have a problem in understanding the coding of the Calculix examples.  Is there any reference to help me understanding Calculix coding. 

05 June 2017 7,937 2 View

What are the sources of error in using an APDL Ansys code on two different versions with two nonsense solutions?

We have a code for a benchmark problem. We used this code in Ansys 14 and in Ansys 17. However, we get two different nonsense solutions. Further, we repeated running the code on Ansys 14 and it...

03 April 2017 1,710 3 View

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