Journal of Verification, Validation and Uncertainty Quantification最新文献

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Uncertainty Quantification in a Patient-Specific One-Dimensional Arterial Network Model: EnKF-Based Inflow Estimator. 患者特定的一维动脉网络模型中的不确定性量化:基于enkf的流入估计器。

IF 0.6

Journal of Verification, Validation and Uncertainty Quantification Pub Date : 2017-03-01 Epub Date: 2017-02-22 DOI: 10.1115/1.4035918

Andrea Arnold, Christina Battista, Daniel Bia, Yanina Zócalo German, Ricardo L Armentano, Hien Tran, Mette S Olufsen

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引用次数: 14

Validation Metrics for Deterministic and Probabilistic Data 确定性和概率数据的验证度量

IF 0.6

Journal of Verification, Validation and Uncertainty Quantification Pub Date : 2017-02-01 DOI: 10.1115/1.4042443

K. Maupin, L. Swiler, N. Porter

引用次数: 21

Effective Convergence Checks for Verifying Finite Element Stresses at Three-Dimensional Stress Concentrations 三维应力集中下有限元应力验证的有效收敛校核

IF 0.6

Journal of Verification, Validation and Uncertainty Quantification Pub Date : 2016-12-01 DOI: 10.1115/1.4042515

Jeffrey R. Beisheim, G. Sinclair, P. Roache

{"title":"Effective Convergence Checks for Verifying Finite Element Stresses at Three-Dimensional Stress Concentrations","authors":"Jeffrey R. Beisheim, G. Sinclair, P. Roache","doi":"10.1115/1.4042515","DOIUrl":"https://doi.org/10.1115/1.4042515","url":null,"abstract":"Current computational capabilities facilitate the application of finite element analysis (FEA) to three-dimensional geometries to determine peak stresses. The three-dimensional stress concentrations so quantified are useful in practice provided the discretization error attending their determination with finite elements has been sufficiently controlled. Here, we provide some convergence checks and companion a posteriori error estimates that can be used to verify such three-dimensional FEA, and thus enable engineers to control discretization errors. These checks are designed to promote conservative error estimation. They are applied to twelve three-dimensional test problems that have exact solutions for their peak stresses. Error levels in the FEA of these peak stresses are classified in accordance with: 1–5%, satisfactory; 1/5–1%, good; and <1/5%, excellent. The present convergence checks result in 111 error assessments for the test problems. For these 111, errors are assessed as being at the same level as true exact errors on 99 occasions, one level worse for the other 12. Hence, stress error estimation that is largely reasonably accurate (89%), and otherwise modestly conservative (11%).","PeriodicalId":52254,"journal":{"name":"Journal of Verification, Validation and Uncertainty Quantification","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1115/1.4042515","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63499505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

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