Ochana Fernandes

4 Questions 8 Answers 0 Followers

Questions related from Ochana Fernandes

How can I prevent buckling during a compression test?

Good afternoon, I am performing a compression test on a polymer per ASTM D695, but the sample buckles. The sample is a prism (12.7X12.7x25.4mm) and I am not using any especial fixture (just two...

01 January 2019 2,977 4 View

Does anyone know an accurate method to find the gradient of a function?

Hello, I have numerical values of stresses (or any other quantity) at the nodes of a plate. I obtained the gradient in MATLAB using the function solvepde from the PDE toolbox. However, the results...

05 May 2018 7,828 10 View

How to obtain bending and torsion modes of vibration in Ansys APDL?

Hello! I've modeled a simple wing box with some spars and ribs in Ansys APDL. I chose SHELL181 for all the elements. My first natural mode of vibration is bending, but then I get local modes for...

02 February 2016 9,897 4 View

Is the parallel axis theorem concept valid with the laminate plate theory?

The laminate plate theory formulates the strain having the origin of the coordinate system at the mid-plane. If I have a complex structure, could I divide it into several plates (may not be at the...

04 April 2015 8,042 4 View