Neutron stress measurement of triaxial residual stress tensors in an aerospace weldment before and after post-weld heat-treatment

Book · Tue Dec 31 00:00:00 EST 1996

OSTI ID:442930

Winholtz, R A; Krawitz, A D ^[1]

---

1. Univ. of Missouri, Columbia, MO (United States)

Triaxial stress tensors and their corresponding principal stresses were determined with neutron diffraction, before and after post-weld heat-treatment, at 14 positions in and near a circumferential weld in a subscale model cylinder of the NASA-Advanced Solid Rocket Motor. No principal stress directions were assumed in making the measurements. The principal stresses range from {minus}393 to +1,045 MPa in the as-welded condition and decreased to a range of {minus}212 to +421 MPa after post-weld heat-treatment. The largest as-welded tensile stresses were located around the cap pass heat affected zone in the interior of the material and were aligned with the hoop direction of the cylinder.

• Sponsoring Organization: National Aeronautics and Space Administration, Washington, DC (United States)
• OSTI ID: 442930
• Report Number(s): CONF-950682-; ISBN 0-87170-567-2; TRN: IM9712%%355
• Resource Relation: Conference: 4. international conference on trends in welding research, Gatlinburg, TN (United States), 5-9 Jun 1995; Other Information: PBD: 1996; Related Information: Is Part Of Trends in welding research: Proceedings of the 4. international conference; Smartt, H.B.; Johnson, J.A. [eds.] [Idaho National Engineering Lab., Idaho Falls, ID (United States)]; David, S.A. [ed.] [Oak Ridge National Lab., TN (United States)]; PB: 836 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
33 ADVANCED PROPULSION SYSTEMS
RESIDUAL STRESSES
WELDED JOINTS
STEELS
ROCKET ENGINES
HEAT TREATMENTS
NEUTRON DIFFRACTION
STRAINS
EXPERIMENTAL DATA