极限荷载的插值模调整技术

IF 1 4区工程技术 Q4 ENGINEERING, MECHANICAL Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-08-05 DOI:10.1115/1.4055168

S. Mangalaramanan

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引用次数: 0

摘要

本文提出了一种确定下限和上限荷载的方法，称为插值模量调整技术（IMAT）。该方法基于迭代线性弹性分析，并应用于几个具有实际意义的测试案例。IMAT完全符合经典的下界和上界定理。在所有情况下，上限和下限负载收敛，从而建立了该技术的稳健性。IMAT的结果与非线性有限元分析的相关性始终在3%以内。

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Interpolated Moduli Adjustment Technique for Limit Loads

A method to determine lower and upper bound limit loads called interpolated moduli adjustment technique (IMAT) is proposed in this article. This method is based on iterative linear elastic analyses and is applied to several test cases of practical interest. IMAT fully conforms to the classical lower and upper bound theorems. In all the cases the upper and lower bound limit loads converge, thereby establishing the robustness of the technique. The results from IMAT correlate with non-linear finite element analysis consistently within 3%.

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来源期刊

Journal of Pressure Vessel Technology-Transactions of the Asme 工程技术-工程：机械

CiteScore

2.10

自引率

10.00%

发文量

审稿时长

4.2 months

期刊介绍： The Journal of Pressure Vessel Technology is the premier publication for the highest-quality research and interpretive reports on the design, analysis, materials, fabrication, construction, inspection, operation, and failure prevention of pressure vessels, piping, pipelines, power and heating boilers, heat exchangers, reaction vessels, pumps, valves, and other pressure and temperature-bearing components, as well as the nondestructive evaluation of critical components in mechanical engineering applications. Not only does the Journal cover all topics dealing with the design and analysis of pressure vessels, piping, and components, but it also contains discussions of their related codes and standards. Applicable pressure technology areas of interest include: Dynamic and seismic analysis; Equipment qualification; Fabrication; Welding processes and integrity; Operation of vessels and piping; Fatigue and fracture prediction; Finite and boundary element methods; Fluid-structure interaction; High pressure engineering; Elevated temperature analysis and design; Inelastic analysis; Life extension; Lifeline earthquake engineering; PVP materials and their property databases; NDE; safety and reliability; Verification and qualification of software.