element stiffness matrix
element stiffness matrix
(OP)
How can I get element stiffness matrix in ANSYS (classic)?
Thanks
Thanks
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: element stiffness matrix
You can find the element formulations in the Ansys Applications Theory Reference. For example, a 20-node brick element is discussed in section 12.9.13.20.
www1.ansys.com/customer/content/documentation/121/ans_thry.pdf
//signed//
Christopher K. Hubley
Mechanical Engineer
Sunpower Incorporated
Athens, Ohio
RE: element stiffness matrix
http://www.narmafzar24.ir
Engineering Softwares Company
RE: element stiffness matrix
http://www.narmafzar24.ir
Engineering Softwares Company
RE: element stiffness matrix
for the global stiffness matrix I uses 'jobname.full' file, which contains global stiffness matrix and is written after every solution. Command hbmat extract global stiffness matrix from 'jobname.full' and save custom named file with this matrix in HB format.
Maybe there is similar way to get element stiffness matrix since ANSYS writes 'jobname.emat' file, which contains element stiffness matrices. Problem is that files *.full and *.emat are binary and I don't know command simmilar to hbmat but for elements (if there is any).
The reason I need element stiffness matrix is for calculating potential energy by myself. Ansys uses formula
E(e) = 1/2 * u(e)^T * K(e) * u(e)
(e) represents element