Learning Forum

[Dileep Kuchipudi]

"I am new to LS-DYNA and currently working on a compression test project for Infra Lightweight Concrete (ILC). To simulate this, I am using the mat154 material card. I have searched through several papers and the LS-DYNA manual, but I couldn't find the values for parameters such as alpha, beta, gamma, densification strain parameters, etc. It would be beneficial if someone could assist me with this."

[Alex R.]

 

Hello Dileep,

Please look at those journal/conference articles:

Reyes, Aase & Hopperstad, Odd & Berstad, Torodd & Hanssen, AG & Langseth, M. (2003). Constitutive modeling of aluminum foam including fracture and statistical variation of density. European Journal of Mechanics A/Solids. 22. 815-835. 10.1016/j.euromechsol.2003.08.001.

Reyes, Aase & Hopperstad, Odd & Langseth, M.. (2004). Aluminum foam-filled extrusions Subjected to oblique loading: experimental and numerical study. International Journal of Solids and Structures. 41. 1645-1675. 10.1016/j.ijsolstr.2003.09.053.

Szyniszewski, Smith, Arwade, Hajjar, Schafer. Tensile and Shear Element Erosion in Metal Foams. 12^th International LS-DYNA Users Conference

If you are a commercial customer, please create a service request on the Ansys customer portal: customer.ansys.com and we will be able to look at this issue in more detail. 

Let me know how it goes. 

Alex