I intend to perform mechanical tensile test for my polymer nanocomposites. Does there exists any ASTM standard to follow? Can I also know the dimensions of the specimen to be produced? Lastly, I intend to create a mould for the dog-bone shape. Can we get files online to create the dog-bone mould using 3D printer?
Please refer to ASTM D638, JIS K 7113, or KS M ISO 527.
For 3D printing, I think you should build it yourself, it is not complicated.
Yes, there are several ASTM standards available for performing mechanical tensile tests on polymer nanocomposites. Some of the commonly used standards are:
The dimensions of the specimen depend on the specific ASTM standard chosen for the test. For example, ASTM D638 specifies the dimensions for Type I, II and III specimens. Similarly, ASTM D3039 and ASTM D882 specify the dimensions for different types of specimens.
Regarding the creation of a dog-bone mold using a 3D printer, there are several online resources available that provide files for 3D printing dog-bone molds. Some popular online resources include Thingiverse, GrabCAD, and MyMiniFactory. However, it is important to ensure that the dimensions of the mold are as per the ASTM standards to obtain accurate results.
Anish,
Dr Rajamanickam's suggestions are spot-on.
Do note, additionally, that ISO standards also exist for these tests - and in some cases might be preferable depending on the audience for the data.
ISO 527-2 mirrors, in many ways, the steps of D638.
https://www.instron.com/en-us/testing-solutions/iso-standards/iso-527-2