Recent content by Sadeq

http://postimg.org/image/3n5smqb35/ in this picture a book mention that the post-limit stiffness of the component (upon yielding) is notably reduced in the case of the higher bolt grade(red line). And i don't understand post stiffness. Help me please

I don't know exactly that's why i am asking if anyone know about post stiffness concept. Thank you

I know that initial stiffness is the tangential stiffness at the beginning and the secant stiffness represent, the secant line passing through 0,0 and the final point( yield point).But still confuse about the post limit stiffness, that way i asked for drawing to clarify them all at the same...

Hello, My question is simple, but it does confuse me. I need to know the exact difference between Initial stiffness,post limit stiffness, and secant stiffness in details please Please clarify this on graph if possible Thank you

http://www.freeimagehosting.net/czf1c

Hello, I am doing simulation using Finite element for the concrete ,this I found the concrete model for the concrete in euro code as attached in the picture. But what I don't understand is basically why the peak of the curve is not the Fck (compressive strength), because the curve maximum is...

Hello, I am conducting FE modelling on specimen of steel surrounded by concrete, and i obtain curve which have stiffness similar to experiment(all assume linear behaviour for all materials) but the start of curve is not convenient displacement -0.0071033 0.0123265 0.0310888...

Sorry for that, I upload now another example, and my question is why he said that for splittable activity 6 day work is feasible while at not splittable 6 days work are not feasible,,please explain this form me Also what if it was delay lag for both what happen Basically i am confused in...

I am an oversees student ,who hold MSc in structural engineering from Nottingham university, basically i want to work in London, actually i start to apply late a little bit( a month ago),and i have to find job before October with visa permission to stay in UK. In the previous month i applied...

Homework Statement The attached page explain the work and delay lag but actually i can't understand when he said for example that two bridges can't start together?why? how he know that? and in other graph he said the different directions of lag which is correct actually i completely...

And for the second question, if i have two parts influence each other,do the nodes be connected(i mean continuous line path through the two parts) which is difficult to be done?please explain this point

thank you

I am using FE package called ABAQUS, however my question is general, i read that the mesh should be uniform,so does that mean it should be square, also if i have different parts affect each other, does the nodes on one part need be connected to the other part at the edges(to achieve continuous...

i try using mat lab and i get exactly the answer with manual solution, which is differ from the book solution. Any help please

i try this in MATLAB ,i get exactly like my answer r1 is square not to the power 4 and there is no ln r1 only ln r