{"id":31186,"date":"2018-10-29T18:59:42","date_gmt":"2018-10-29T18:59:42","guid":{"rendered":"\/forum\/forums\/topic\/hyperelastic-test-data-what-strain-to-use\/"},"modified":"2018-10-29T18:59:42","modified_gmt":"2018-10-29T18:59:42","slug":"hyperelastic-test-data-what-strain-to-use","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/hyperelastic-test-data-what-strain-to-use\/","title":{"rendered":"Hyperelastic Test Data – What strain % to use?"},"content":{"rendered":"

Hi all,<\/p>\n

<\/p>\n

I’m bending and compressing a hyperelastic tubing in ANSYS, and have available multiple strain % experimental data available (e.g. 15% strain, 68% strain, 89 % strain in uniaxial, biaxial, planar shear stress).<\/p>\n

<\/p>\n

What is the best way to determine what strain % data set to use? For example, I want to rotate 1 cm of tubing at most 60 degrees and then push\/compress it towards a fixed support.<\/p>\n

<\/p>\n

 <\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

I’ve seen at MOST ~0.05 in\/in or ~5% strain, but am using the higher strain rate experimental data currently.<\/p>\n

<\/p>\n

How do I assess, given the physical boundaries and forces\/displacements I would like to apply, what strain % experimental data to use to get the most accurate representation of the real world physical problem?<\/p>\n

<\/p>\n

If I’m using the high strain % experimental data, and only seeing ~5% strain occurring with my tubing, am I losing some material characteristics at these lower strains or are my strains low BECAUSE of me using a high % strain experimental data?<\/p>\n

<\/p>\n

Any insight on best practices here are greatly appreciated.<\/p>\n

<\/p>\n

Regards,<\/p>\n

<\/p>\n

Zach<\/p>\n","protected":false},"template":"","class_list":["post-31186","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t