Biaxial ratcheting and cyclic plasticity for Bree-type loading. Part 1: Finite element analysis

Journal Article · Wed May 01 04:00:00 EDT 1996 · Journal of Pressure Vessel Technology

DOI:https://doi.org/10.1115/1.2842174· OSTI ID:231026

Ng, H W; Nadarajah, C ^[1]

---

1. Nanyang Technological Univ., Singapore (Singapore). School of Mechanical and Production Engineering

The Bree diagram has been incorporated in the ASME B and PV Code in the elevated temperature Code Case N47 as a design approach for limiting strain accumulation in cylinders subjected to cyclic thermal loadings under sustained primary stress. Since the Bree diagram is based upon uniaxial-stress model, it is pertinent to examine the influence of biaxial stresses on strain growth and cyclic stress-strain hysteresis response. The results of inelastic analyses presented in this paper showed that ratcheting and hysteresis behavior may also occur in the axial direction in addition to the hoop direction. Results of almost 100 load cases were presented to clarify the influence of biaxial membrane and thermal bending stresses on the structural behavior. A design approach for the assessment of this type of problem was suggested which utilizes these results.

• Sponsoring Organization: USDOE
• OSTI ID: 231026
• Journal Information: Journal of Pressure Vessel Technology, Journal Name: Journal of Pressure Vessel Technology Journal Issue: 2 Vol. 118; ISSN 0094-9930; ISSN JPVTAS
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CYLINDERS
FINITE ELEMENT METHOD
PLASTICITY
RATCHETING
STANDARDS
STRESS ANALYSIS
THEORETICAL DATA
THERMAL STRESSES