Do concrete have relaxation?

Exclude the effect of shrinkage

03 April 2017 3,552 4 View

Creep sometime called plastic flow. The internal mechanism of creep may be due to one or a combination or reasons. What are these reasons?

interpretation of creep

03 April 2017 1,596 0 View

In vibration analysis of multi-degree of freedom system, what is the value of the off-diagonal elements of the consistent mass matrix?

Vibration analysis

02 March 2017 8,876 0 View

What is the minimum diameter of longitudinal reinforcement of a column?

how many mm?

02 March 2017 4,252 2 View

Is it correct that the value of the prestressing force which calculated by ACI code and AASHTO equals Aps*fpi?

why these codes ignored the effect of the nonprestressed steel and concrete on this value?

01 January 1970 5,335 9 View

What is the time period required to determine the ultimate value of the intrinsic relaxation for steel strands?

how many hours?

01 January 1970 4,849 7 View

What is the degree of the formula used to determine the depth of compression zone in members subjected to axial load and uniaxial bending moment?

columns

01 January 1970 6,151 12 View

How the descending branch of the stress-strain diagram of concrete under uniaxial compression can be determined experimentally?

What type of compression machines shall be used?

01 January 1970 7,082 6 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 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

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View

How relevant is Mini slump cone?

for all the rheology researchers, my question is, how relevant is a mini slump cone (smaller than a standard 50 cent rheometer). currently based on testing, the thickness of slumped material is...

26 February 2021 3,668 1 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

How to reduce residual stresses in MD simulation?

I am working on a preparation of representative polymeric structures of some popular polymers, such as polyimide or PTFE for MD simulation, during which a single nitrogen or oxygen atom will be...

24 February 2021 8,105 3 View