Recent content by jiayen87

for example from the efunda after getting Ix and Iy , the total moment of inertia is the sumation of the two I?if weight is added on top of the beam in this example, what will be the direction for the 'stress'? with given mass, if i want to maximize the moment of inertia mass of an I beam...

i can't figure out the directions. the cross section is a I shape right?y the stress will be pointing toward us? >.< hmm...sory i a bit slow learner. because i juz enroll into university and din learn these in my secondary sch. another thing, may i know wat is a bending moment?

erm... i thk i has the shape like that because the middle part (vertical beam between I) prevent the top and the bottom part from bending in order to strengthen the beam. is that correct? but i need a more formal explanation which i can't figure out. i am new to this forum, sorry that having...

[help]bending of beam(urgent) can anyone pls tell me how do i explain that why I beam is used for civil engineering? --> how do i explain that a beam with rectangular cross section is easier to bend when weight is added on it when it is placed horizontally(bigger area facing up) than when it...