What is the meaning of patch test in FEM?

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What is the reason of collapse of water tank shown in the attached you tube?

https://www.youtube.com/watch?v=WLEkC_JbTsQ

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Which type of multiple-cell box girder is better, cells connected by top flanges or cells connected both by top and bottom flanges?

How we can design box girder bridge?

02 March 2017 10,163 3 View

Why do BS8007 specify the allowable crack width of water retaining structure as 0.2mm for severe or very severe exposure?

Why 0.2 mm crack width?

02 March 2017 9,354 3 View

What is the effect of rusting on steel reinforcement?

How does rust affect on the bonding between steel bars and concret?

02 March 2017 3,458 10 View

In “High strength concrete” in buildings, 56 or 91-day compression test results are sometimes adopted instead of 28-day compression test results. Why?

In normal concrete structures, 28-day test results are often adopted.However, in the construction of high-rise buildings using “High strengthconcrete”, compressive strengths based on 56 or 91-day...

02 March 2017 8,839 19 View

What is the difference between working stress approach and limit state approach?

What about difference between those approaches regarding load and material safety factor?

02 March 2017 587 2 View

In carrying out compression test for concrete, should test cubes or test cylinders be adopted?

Relation between cubes and cylinder

02 March 2017 5,836 4 View

If concrete compression test fails, should Schmidt hammer test be adopted as an alternative test to prove the concrete strength?

Non destructive tests

02 March 2017 5,452 31 View

It is not necessary to design nominal reinforcement to piles. Is it true?

Can we use same code provisions of columns for piles?

02 March 2017 7,906 3 View

Can a concrete structure be completely free of expansion joints and contraction joints?

Assume that there is no differential settlement.

02 March 2017 7,651 3 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

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Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

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Has anyone looked into the stability of FEM methods on curved meshed?

Google scholar isn't giving me any results on this

27 July 2024 595 2 View

How can I decrease the error of Rietveld method for phase quantification?

Phase quantification in steel contain BCC and FCC

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How high should the remuneration be for test subjects in psychological research projects in Germany?

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Anyone working in Model updating technique using FEM?

I am trying to model RCC beam with induced corrosion. How to model this beam using model updating technique.

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I came across oscillations in a pressure profile for a pipeline flow along the axis of a cylinder, how do I prove that these are not numerical err?

In terms of CFD, we often analyze the stability of the error using Von-Neumann analysis, especially for FDM based problems. Should we follow the same approach for a compressible fluid flow using FVM ?

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General Axisymmetric Solid Elements 272 & 273: what is their formulation?

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What are the criteria that must be retained for the development and validation of a qualitative NMR method ?

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Amjad Albayati

it is a test used in FEM to get optimum mesh model

Nazar K Ali Oukaili

this is test to choice the discretization of the section and the member

Kadir Gunaydin

Article The Patch Test. A condition for assessing FEM convergence

https://en.wikiversity.org/wiki/Nonlinear_finite_elements/Homework_3/Solutions

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