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Use of Miniature Specimen Test and Finite Element Method for Evaluation of Yield Strength and Fracture Toughness in Metallic Alloys

机译:微型试样测试和有限元方法在金属合金屈服强度和断裂韧性评估中的应用

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摘要

The present paper describes the method for evaluation of yield strength and fracture toughness of three materials, namely, linepipe steel, aluminum (Al) alloy, and gray cast iron using miniature specimen test. Conventional standard test methods consume more material and money and may damage the integrity of the in-service component. Miniature specimen tests overcome all these demerits. A method is outlined to predict the yield strength and fracture toughness from the miniature test through the empirical relations. The validation of results has been carried out by conducting standard tensile and fracture toughness tests according to ASTM standards. Further, the finite element method has been used to simulate the miniature test. A close agreement is observed between the results of the miniature test and standard tests.
机译:本文介绍了使用微型试样试验评估线管钢,铝(Al)合金和灰口铸铁这三种材料的屈服强度和断裂韧性的方法。常规的标准测试方法会消耗更多的材料和金钱,并且可能会损坏使用中组件的完整性。微型样品测试克服了所有这些缺点。概述了一种通过经验关系从微型试验预测屈服强度和断裂韧性的方法。通过根据ASTM标准进行标准的拉伸和断裂韧性测试来进行结果验证。此外,有限元方法已被用来模拟微型测试。微型测试结果与标准测试结果之间存在密切的一致性。

著录项

  • 来源
    《Journal of testing and evaluation》 |2011年第1期|p.1-8|共8页
  • 作者单位

    Graduate Student, Centre for ITMMEC, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India;

    rnFaculty of Engineering and Applied Science, Memorial Univ. of Newfound land, St John's, NL A1B 3X5, Canada;

    rnDept. of Applied Mechanics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India;

    rnDept. of Applied Mechanics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    miniature specimen; fracture toughness test; yield strength; tensile test; FEM; ABAQUS;

    机译:微型标本断裂韧性测试;屈服强度拉伸试验有限元阿巴克斯;

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