Fully tempered glass and spontaneous fracture

Fully tempered glass and spontaneous fracture

By Christopher J. Brandmeier, PE, John A. Jackson, AIA, and Thomas A. Schwartz, PE Nickel sulfide- (NiS) induced spontaneous fracture of fully tempered glass. Image courtesy Simpson Gumpertz & Heger This article was originally published in July 2018 by John A. Jackson and Thomas A. Schwartz. It has been refreshed and updated to further expand on […]

Virginia Tech unveils hard hat, helmet rating system

Virginia Tech unveils hard hat, helmet rating system

Listen to the article 3 min This audio is auto-generated. Please let us know if you have feedback. Dive Brief: Virginia Tech’s Helmet Lab has released a first-of-its-kind rating system for construction hard hats and helmets that mirrors rankings used for sport helmets. The findings, shared publicly Monday, indicate that Type II helmets — or […]