Including Mean Stress in the Effective Equivalent Stress of the ASME BPVC Elastic–Plastic Fatigue Method-Reference-Cited by-同舟云学术

Including Mean Stress in the Effective Equivalent Stress of the ASME BPVC Elastic–Plastic Fatigue Method

Published:2022-05-10 Issue:3 Volume:5 Page:
ISSN:2572-3901
Container-title:Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems
language:en
Short-container-title:

Author:

Ross Michael¹,Najera-Flores David²,Freymiller James³

Affiliation:

1. Sandia National Laboratories, P.O. Box 5800, MS 0346, Albuquerque, NM 87106

2. ATA Engineering, Inc., 13290 Evening Creek Drive South, San Diego, CA 92128

3. ATA Engineering, Inc., 6001 Indian School Road NE, Albuquerque, NM 87110

Abstract

Abstract This work provides a novel method for including mean stress in the American Society of Mechanical Engineers (ASME) Boiler Pressure Vessel Code (BPVC) elastic–plastic fatigue procedure. Typically, the mean stress is accounted for by adjusting the stress-life cycle curve. A new approach is provided by adjusting the effective equivalent stress range with a mean stress correction. This approach is advantageous because this adjustment can be made at each cycle and efficiently implemented in the computation. This new approach allows for fatigue analysis of large-scale models, such as full spacecraft assemblies or a semi-truck trailer. The proposed method is verified by predicting the fatigue life of a test coupon and compared to experimental results.

Publisher

ASME International

Subject

Mechanics of Materials,Safety, Risk, Reliability and Quality,Civil and Structural Engineering

Link

https://asmedigitalcollection.asme.org/nondestructive/article-pdf/5/3/031006/6878714/nde_5_3_031006.pdf

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