Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Keyword
- Publication Type
Articles 1 - 2 of 2
Full-Text Articles in Structural Materials
Direct Observations Of Electric Field-Induced Domain Boundary Cracking In 〈001〉 Oriented Piezoelectric Pb(Mg1/3nb2/3)O3–Pbtio3 Single, Xiaoli Tan, Z. Xu, J.K. Shang, P. Han
Direct Observations Of Electric Field-Induced Domain Boundary Cracking In 〈001〉 Oriented Piezoelectric Pb(Mg1/3nb2/3)O3–Pbtio3 Single, Xiaoli Tan, Z. Xu, J.K. Shang, P. Han
Xiaoli Tan
In situtransmission electron microscopy study of electric field-induced cracking has been conducted on 〈001〉 oriented 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 crystal. Fracture of the 90° domain boundary was directly observed in the tetragonal area under both static and alternating electric fields. The field strength required to induce domain boundary cracking was lower for alternating electric field than for static field.
Governing Yield Modes For Common Bolted And Nailed Wood Connections, Brian J. Tucker, David Pollock, Kenneth J. Fridley, Jeffrey J. Peters
Governing Yield Modes For Common Bolted And Nailed Wood Connections, Brian J. Tucker, David Pollock, Kenneth J. Fridley, Jeffrey J. Peters
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
Connections in wood structures are important when designing for ductility. The 1997 Uniform Building Code has taken this into consideration when designating wind and earthquake load duration factors for connections. Factors of 1.6 or 1.33 may be applied to the connection strength, depending on the type of yield mode exhibited by the connection, which may be determined from the yield limit equations supplied in the National Design Specification for Wood Construction (NDS). The NDS provides the designer with multiple tables containing capacities for various common connections. Unfortunately, yield modes are not published along with tabulated capacities. Therefore, the designer must …