Design and experimental investigation of the low-cycle resistance of vessels fracture
Conference
·
OSTI ID:4426442
Technology. II. New York; Amerlcan Society of Mechanical Engineers (1973). From 2nd international congress for pressure vessel and piping technology; San Antonio, Texas, USA (1 Oct 1973). See CONF731003-P2. Stress analyses and experimental data are necessary to determine the load capacity and failure conditions and therefore, the safety of large pressure vessels used in power plants, refineries, and chemical plants. Low-cycle loading of pressure vessels involves a possibility of local plastic deformations in stress concentration zones as well as beyond them, which is promoted by the addition of thermal stresses to those produced by the internal pressure. Elastoplastic strains arising in such cases are of a nonstationary character resulting from the nonstationary operating conditions on one hand and from changes in the material strength due to cyclic plastic deformations on the other one. Therefore, the evaluation of the load capacity of pressure vessels under lowcycle loading conditions should be based on the results of either an analytical or experimental determination of the kinetics of local stresses and strains and on corresponding criteria of lowcycle failures for nonstationary conditions of cyclical elastoplastic deformation. Fundamentals of strength calculations for structural elements under low-cycle loading are reviewed, and basic mathematical relationships for estimating the strength of pressure vessels, involving a comparison of calculated and experimental results, are cited. (LCL)
- Research Organization:
- Inst. of Mechanical Engineering Research, Moscow
- NSA Number:
- NSA-29-000254
- OSTI ID:
- 4426442
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
Investigation on low-cycle fatigue strength of piping components
Elastic--plastic and creep analysis of pipelines by finite elements
Low-cycle fatigue strength of piping components
Conference
·
Sun Dec 31 23:00:00 EST 1972
·
OSTI ID:4423737
Elastic--plastic and creep analysis of pipelines by finite elements
Conference
·
Sun Dec 31 23:00:00 EST 1972
·
OSTI ID:4439858
Low-cycle fatigue strength of piping components
Conference
·
Sun Dec 31 23:00:00 EST 1972
·
OSTI ID:4428907