This article from Structures Magazine introduces antiterrorism design requirements and various analysis processes for exterior cold-formed steel (CFS) stud walls.
The UFC 4-010-01 provides measures to establish a required level of protection against terrorist attacks for all DoD buildings. Conventional construction parameters and conventional construction standoff distances for CFS stud walls are established in UFC 4-010-01.
Exterior CFS walls meeting the requirements for conventional construction parameters and standoff distances do not require blast analysis. However, blast analysis should be performed for the supporting framing elements of windows and their connections, at all standoff distances.
For a numerical design example illustrating the detailed blast analysis and design of a CFS exterior non-load bearing wall and the Jamb member of a punched window opening, refer to Cold-Formed Steel Engineers Institute TN S100-16. It shows that the dynamic design approach for CFS stud walls is more economical and is, therefore, recommended over the static design approach.