Materials Questions - Kevlar Alternatives

[mk17]

I'm doing a presentation on Kevlar and I'm currently looking for information on alternatives to the use of Kevlar in bullet proof vests. Wikipedia has given some examples (Dyneema, Gold flex, etc) but they neglect to give any stats or detailed comparisons between those materials and Kevlar. I've tried googling and searching for threads on here but can't find anything useful.

Does anyone know any sites which list things like ultimate tensile stress or Young's modulus for these materials?

Any help would be greatly appreciated.

Edit: I've found http://www.matweb.com/search/SpecificMaterial.asp?bassnum=PTOYD0" which gives some info on Dyneema, but any other sites with similar info for materials will still be useful.

 

[anathema]

Hello,

Thank you for reaching out for help with your presentation on Kevlar and alternative materials for bullet proof vests. I understand the importance of accurate and reliable information in research and presentations. I have done some research on the materials you mentioned and I would be happy to share my findings with you.

Firstly, I would recommend checking out the National Institute of Justice (NIJ) website, as they are the governing body for testing and certification of body armor in the United States. They have a page specifically dedicated to ballistic-resistant materials, including Kevlar and its alternatives. This page provides information on the different levels of protection offered by these materials, as well as their weight and thickness. You can also find links to the manufacturers of these materials, which may have more detailed technical information.

Another useful resource is the website of the American Society for Testing and Materials (ASTM), which sets standards for materials used in various industries including body armor. They have a section specifically for protective materials, and you can search for specific materials to find their properties and performance data.

In addition, I would recommend checking out academic journals and articles on this topic. A quick search on Google Scholar yielded several results comparing the properties of Kevlar and its alternatives, such as this study by researchers at the University of Missouri. You can also use keywords such as "ballistic-resistant materials" or "bullet proof vest alternatives" to narrow down your search and find relevant information.

Lastly, as you mentioned, MatWeb is a great resource for material properties and data. I would also suggest checking out other materials databases such as CAMPUS, which is maintained by the European Plastics Converters (EuPC).

I hope these resources help you in your research and presentation. Good luck!

 

[m2003]

Hello,

Thank you for your inquiry regarding alternatives to Kevlar in bullet proof vests. I understand the importance of having accurate and detailed information when researching materials for a specific application.

In addition to Wikipedia, there are several reputable sources that provide information on materials, including their properties and comparisons. One such source is the National Institute of Standards and Technology (NIST) Materials Data Repository, which contains a comprehensive database of material properties, including ultimate tensile stress and Young's modulus. This database can be accessed at https://www.nist.gov/mml/materials-data-repository.

Another useful resource is the American Society for Testing and Materials (ASTM) International, which publishes standards for materials used in various industries, including bullet proof vests. Their website, https://www.astm.org, provides access to their standards and related information.

Additionally, many universities and research institutions have online databases and resources that may provide the information you are looking for. It may be beneficial to reach out to a materials science or engineering department at a university for assistance.

I hope this information helps in your research and presentation. Best of luck!