Janeshka Goonewardena

6 Questions 8 Answers 0 Followers

Questions related from Janeshka Goonewardena

What's an easily accesible and easy to use diagram maker/drawing tool available for researchers?

This is a question that I've always had but never asked the bigger research body. For journal articles and presentations, I use PowerPoint or Canva to make specimen drawings or schematics....

25 January 2024 5,589 5 View

How do I get a stress-strain curve from a 3-point bending load-deflection curve given that it is nonlinear or behaves elasto-plastically?

I have results from a load-deflection curve that behaves non-linearly. I need to convert this to a stress-strain curve and/or find the final Modulus of Rupture (MOR). To do so, converting the...

16 May 2023 887 8 View

Is anyone else having problems with MAT040 (NONLINEAR_ORTHOTROPIC) in LS-DYNA?

I'm working with a transversely isotropic material with a nonlinear (elastic-plastic) response under compression. I'm looking into the nonlinear buckling of this material, and to do so I'm using...

07 March 2023 9,484 0 View

How do I get my compressive sample to buckle under material and geometric nonlinearities in LS-DYNA?

I'm trying to simulate nonlinear compressive buckling of a material. However, it's not buckling as I would (theoretically) expect for lengths crossing the buckling threshold. It would just...

06 January 2023 8,989 2 View

Is there a statistical tool for comparing two curves (in this case stress-strain) with different x and y coordinates?

I'm in a situation where I need to compare the accuracy of one stress-strain curve with respect to the other, with both curves having different x and y coordinates. If both curves have the same...

22 March 2021 8,784 4 View

Compressive strength of a timber sample with a rectangular cross section(Cuboid)?

I have to find the compressive strength of CLT samples that have a rectangular cross section - I know that this is not the most ideal scenario, and a cube would have been better - but what are the...

11 June 2019 5,620 5 View