Resonance frequency of a cantilever beam is given by
f=(kn/2pi)*sqrt(EI/mL4)
where, kn=3.52 for cantilever, E is Young's Modulus, I is moment of Inertia, m is mass, L is beam length.
The equation is available in Raymond J. Roark and Warren C. Young, “Formulas for Stress and Strain”, McGraw-Hill, Kogakusha, 5th Edition, (1976).
Can any one help me in deriving this. Or any books or websites which deal with this equation.
I am looking at problems of large deformation and large elastic strain in biological materials, using an analytical model that determines the current deformed state in a single step from the original undeformed state. The approach is to propose a strain energy function to allow the calculation of Piola-Kirchhoff 2 stresses which may then be converted to true Cauchy stresses via the usual mapping. Since I initially calculate PK2 stresses, the strain energy function must be a function of Green strain.
I have advance vibration this term and one of our research homework is to find all solutions that have been presented for parabolic forth order PDE. I am looking for some reference for it. Is there anybody know about it?
Hi,
It's the first time I visit here. I find here a wonderful place.
Hi there!
how can I see the results of some jobs in one diagram when we wanna compare them to gather in Abaqus\Explicit?
I see that in the abaqus user manual it draws the results of two jobs in one diagram and compare them togather easily! So it must e possible!
And also I'm looking for the plastic properties of concrete to modeling its behavior in abaqus!
I'm waiting for your help and proposal!
thanks guys!
Regards
Meisam
I need the solution of Problems attached. These probelems are from The CH#3:Mechanical Properties of materials from the book Engineering Mechanics of Materials 7e Hibbeler book
Ms. Ref. No.: XXXXX-D-07-00060
Title: XXXXXX
XXXXXXXXXX
Dear xxx XXX,
I regret to inform you that the reviewers of your manuscript have advised against publication, and I must therefore reject it.
For your guidance, the reviewers' comments are included below.
Thank you for giving us the opportunity to consider your work.
Yours sincerely,
XXXXXXXXXXX, Professor
Associate Editor
Nanoscale materials, including thin films, quantum dots, nanowires, nanobelts, etc – are all structurally unique because they have a relatively high ratio of surface area to volume ratio. This increase in surface area to volume ratio is important for nanomaterials because wide and unexpected variations in mechanical and other physical properties, such as thermal, electrical and optical, have been found to scale in some proportion to increase in surface area to volume ratio.
