PMMAの計装化衝撃試験と破壊靭性評価  [in Japanese] Instrumented impact test and evaluation of fracture toughness in PMMA.  [in Japanese]

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Abstract

・rights:日本機械学会・rights:本文データは学協会の許諾に基づきCiNiiから複製したものである・relation:isVersionOf:http://ci.nii.ac.jp/naid/110002377905/

In the present study, fracture toughness of PMMA is evaluated based on the instrumented impact test and static three-point bending test. In the measurement of true fracture load in the instrumented impact test, a very difficult problem associated with a remarkable inertial loading effect is pointed out. However, it is shown that the inertial loading effect can be controlled by changing the period (τ) of vibration in specimen. It is also shown that the fracture toughness (K<SUB>I</SUB>) is affected by the loading rate (K^<SUP>.</SUP>). It is observed in the tested range of K^<SUP>.</SUP> (3.8 10<SUP>-3</SUP>2.3 10<SUP>4</SUP>MNm <SUP>-3/2</SUP> S<SUP>-1</SUP>) that the changing tendency can be divided into three types. That is, K<SUB>I</SUB> increases monotonously at first, then decreases, and increases once again with increasing loading rate. Furthermore, it is observed that a feature of fracture morphology is the change from a stable fracture to an unstable one with increasing in K^<SUP>.</SUP>.

Journal

  • TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 55(520), 2434-2438, 1989

    The Japan Society of Mechanical Engineers

Cited by:  1

Codes

  • NII Article ID (NAID)
    110002377905
  • NII NACSIS-CAT ID (NCID)
    AN0018742X
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0387-5008
  • NDL Article ID
    3253027
  • NDL Source Classification
    M072(工業材料・材料試験--機械的試験)
  • NDL Source Classification
    ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL Call No.
    Z14-737
  • Data Source
    CJPref  NDL  NII-ELS  IR  J-STAGE 
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