AISI S910
Full Name
AISI S910 – Test Standard for Determining the Distortional Buckling Strength of Cold-Formed Steel Hat-Shaped Compression Members
Scope
AISI S910 is a standardized test method developed by the American Iron and Steel Institute (AISI) to evaluate the distortional buckling strength of cold-formed steel hat-shaped compression members. Distortional buckling is a complex failure mode characterized by the deformation of the cross-section out-of-plane, often involving local and global buckling interactions. Understanding this behavior is crucial for ensuring the structural integrity and safety of cold-formed steel structures, particularly in applications where hat-shaped members are used as primary compression elements.
Key features of AISI S910:
- Scope: the standard focuses specifically on hat-shaped members, which are commonly used in various construction applications due to their high strength-to-weight ratio.
- Test setup: it outlines the procedures for fabricating test specimens, defining support conditions (e.g., fixed or pinned ends), and applying axial compressive loads.
- Instrumentation: the standard recommends using displacement transducers and strain gauges to monitor the member’s behavior during testing, allowing for accurate measurement of buckling loads and deformation patterns.
- Data analysis: AISI S910 provides guidelines for analyzing the test data to determine the critical distortional buckling load, which represents the member’s ultimate resistance to this failure mode.
- Design implications: the results obtained from tests conducted according to AISI S910 can be used to validate design methods and improve the accuracy of predicting the distortional buckling strength of hat-shaped members in real-world applications.
By providing a standardized and reliable test method, AISI S910 plays a vital role in:
- Enhancing structural safety: accurately determining the distortional buckling strength helps engineers design safer and more reliable cold-formed steel structures.
- Optimizing material usage: understanding buckling behavior allows for the efficient use of materials, leading to cost savings and reduced environmental impact.
- Advancing research and development: the standard serves as a valuable tool for researchers investigating the mechanics of distortional buckling and developing innovative design solutions.
AISI S910 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the AISI S910 standard.
Contact us today to learn more about how our testing services can benefit your projects.
Resources
Keywords
cold-formed steel; distortional buckling; hat-shaped members; compression members; test standard; strength; elastic buckling; local buckling; yield strength; stiffness; residual stresses; imperfections; boundary conditions; finite element analysis; material properties