Hi,
I am trying to model a composite tube with bilinear isotropic material property in ANSYS WB which gets crushed under impact using. After I run the simulation the material tends to act as a spring. Wanted to know if this is the way it is supposed to behave? and how can I make the tube...
Hi All,
I am working on a simulation where I am using a spring in ANSYS Workbench 11.0, and would like to change the slope of the spring when the force in the spring exceeds a certain value. I do not know how to extract the force in the spring. Is there any way I can do this in ANSYS WB 11.0...
Hi,
I have the load-deflection data for a composite tube and would like to find the stress-strain curve. I know the dimensions of the tube.
Is it just calculating stress=force/area & strain = change in length/original length at each point from the load-deflection curve or do I have to take...
Hi,
Like the subject line says, I am looking for a pro/engineer cad model of a 5/16" grade 18 bolt which is 1 1/4" long.
Anyone know of any resources or have the model themselves?
Thanks,
David
Hi,
I am trying to model a Carbon/Epoxy structure in a finite element software but the software does not have the capability to analyze composite materials at this point. So, I wanted to find the equivalent Young's modulus and Poissons ratio so that it can be treated as an isotropic material...
Hello,
I want to find the load-deflection characteristics of a composite crash tube used in aircraft seats for impact energy absorption. Can anyone tell me if it is possible to model this in ANSYS using a quasi-static analysis without the LS-DYNA solver? I tried to do this in ansys with...
My problem involves a spring mass system with a triangular impulse acceleration as the input on impact. I have simplified the force-deflection response as two linear behaviors as shown in attached figure.
I will need to model two separate responses for the input as two ramp loads, and using...
Hi,
I need to find a single equation to represent the curve shown in the attached figure. I have access to MATLAB if that will help. Can anyone help me out?
Thanks,
David
Hi,
I have a seat which is about to be pull tested. The load in this test is applied as shown in the image attached. The applied load is transmitted to the suspension though 4 bolts which attach the seat frame to the suspension. I want to transfer the forces from the three locations that...
Hello Everyone,
I have a simple spring mass system representing a landing gear of an aircraft. The landing gear has a composite tube which absorbs energy on impact in a crash situation. Now, I have the load-deflection characteristics of the landing gear which is a highly nonlinear...
Hi,
I need to carry out a fatigue life analysis on an automobile seat and would like to know how I can measure the stress amplitudes it is subjected to. I guess an accelerometer would need to be used but am not sure which would be the cheapest way to record the data. Can anyone give share...
Hi,
I am still in school getting my degree in Mechanical Engineering and was curious to know what others think about where Mechanical Engineering is headed in the future. I see so much rapid growth in technology in the computer software and electronic industries that it got me thinking if I...
Hi everyone,
I want to drill a hole of 0.305" in a wooden panel which is 0.5" thick. What size drill should I use for this? and where can I select the drill size from? sorry for my ignorance.
Thanks,
David
