Impact Calculations on Lexan and 1010 steel
Impact Calculations on Lexan and 1010 steel
(OP)
Hello All,
I am trying to calculate the energy absorption of lexan and 1010 steel. I know that this value is equal to the area under the stress-strain curve of each of the materials, but I am having trouble finding the stress-strain curve for lexan. Does anyone have this information? or can point me in a direction?..Thanks!!
I am trying to calculate the energy absorption of lexan and 1010 steel. I know that this value is equal to the area under the stress-strain curve of each of the materials, but I am having trouble finding the stress-strain curve for lexan. Does anyone have this information? or can point me in a direction?..Thanks!!





RE: Impact Calculations on Lexan and 1010 steel
If you speak to Bayer (a plastics manufacturer) they have a CD Rom with a great deal of data on their plastics. Their trademark polycarbonate is Macrolon.
I would be very wary of impact details for plastics. They don't have a stress-strain curve in the same way as metals do as they are normally visco-elastic which means that the speed of the applied load is a factor. The Charpy impact test gives relative impact absorbsion but is mostly useful for comparisons.
I would reccomend doing some tests yourself and replicating your situation rather than relying on data for impact solutions - polycarbonate is highly impact resistant but holding it in place to absorb impact without generating a cutting point / stress raiser is difficult.
RE: Impact Calculations on Lexan and 1010 steel
http://www.geplastics.com/resins/designsolution/tools/index.html