time.clock() error in Python 3.8 about trusspy HOT 4 CLOSED

Truss problems are used a lot in structural optimization as benchmark problems. Most people who work in that framework use Python, so I think it would be very useful for this community. What I meant exactly is the following: When you want to optimize a truss, you usually use as design variables the cross sectional areas of the truss elements. Therefore, getting the stiffness matrix as a function of the design variables (either like you said, or just by allowing symbolic variables for ‘area’ in your code) would be very useful. Another thing I tried to do but wasn’t able to is to get the initial stiffness matrix (undeformed configuration. So let’s say I build my model, then I can’t access the initial stiffness matrix unless I pause the M.run() when the first step is finished. Most people who use the code are looking for the undeformed initial stiffness matrix. By the way, you have done an amazing job! Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 From: Andreas D.<mailto:[email protected]> Sent: Friday, April 10, 2020 14:37 To: adtzlr/trusspy<mailto:[email protected]> Cc: Giannis1993<mailto:[email protected]>; Author<mailto:[email protected]> Subject: Re: [adtzlr/trusspy] time.clock() error in Python 3.8 (#10) For the second part: Could you explain your idea in detail? Do you mean something like def stiffness(list_of_element_areas): #code for stiffness matrix return KT How would you like to have this implemented? I mean TrussPy is meant for nonlinear deformation analysis of truss structures. So the stiffness matrix changes in EVERY increment. Would you like to access the stiffness matrix for every increment AFTER the job has completed? For example something like M.Results.R[10].KT(list_of_element_areas)? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<#10 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AN6QJEW3W73KOWNHBKYUT4DRL4HGTANCNFSM4MEWRAGQ>.