Crack-craze opening profiles near a crack tip in a polytetrafluoroethylene

被引：11
作者：
Nunes, L. C. S. [1 ]
机构：
[1] Univ Fed Fluminense, Lab Optomech LOM LMTA, Dept Mech Engn PGMEC, BR-24210240 Niteroi, RJ, Brazil
来源：
POLYMER TESTING | 2012年 / 31卷 / 03期
关键词：
Fracture; Polytetrafluoroethylene; Digital image correlation method; DIGITAL IMAGE CORRELATION; DISPLACEMENT-FIELDS; FRACTURE; BEHAVIOR; PHASE; PTFE; PMMA;
D O I：
10.1016/j.polymertesting.2011.12.002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The crack opening and craze profiles near a crack tip in a polytetrafluoroethylene have been experimentally investigated. A double-edge-crack plate specimen under uniaxial tensile load was used in the experiment and the experimental procedure was performed using the Digital Image Correlation method, which is a well-established optical-numerical method for estimating full-field displacement. A theoretical model of the stress intensity factor based on linear elastic fracture mechanics combined with a classical saturated expression was proposed. The proposed model is in good agreement with experimental data and predictions of the model may be used to verify the non-linear behavior from crack and craze (cohesive) zones. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：375 / 383
页数：9
相关论文
共 34 条
  • [1] Displacement fields around a crack tip in polymers
    Arakawa, K
    Takahashi, K
    [J]. INTERNATIONAL JOURNAL OF FRACTURE, 1997, 86 (04) : 289 - 300
  • [2] Barenblatt GI, 1962, Adv Appl Mech, V7, P55, DOI [10.1016/S0065-2156(08)70121-2, DOI 10.1016/S0065-2156(08)70121-2]
  • [3] The 1/r singularity in weakly nonlinear fracture mechanics
    Bouchbinder, Eran
    Livne, Ariel
    Fineberg, Jay
    [J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2009, 57 (09) : 1568 - 1577
  • [4] CRITICAL-REVIEW OF SOME METHODS IN NONLINEAR FRACTURE-MECHANICS
    BROBERG, KB
    [J]. ENGINEERING FRACTURE MECHANICS, 1995, 50 (02) : 157 - 164
  • [5] The role of crystalline phase on fracture and microstructure evolution of polytetrafluoroethylene (PTFE)
    Brown, EN
    Dattelbaum, DM
    [J]. POLYMER, 2005, 46 (09) : 3056 - 3068
  • [6] Mixed-mode-I/II fracture of polytetrafluoroethylene
    Brown, Eric N.
    Rae, Philip J.
    Liu, Cheng
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 468 (SPEC. ISS.): : 253 - 258
  • [7] Investigation of fatigue crack closure using multiscale image correlation experiments
    Carroll, J.
    Efstathiou, C.
    Lambros, J.
    Sehitoglu, H.
    Hauber, B.
    Spottswood, S.
    Chona, R.
    [J]. ENGINEERING FRACTURE MECHANICS, 2009, 76 (15) : 2384 - 2398
  • [8] Dally JW., 2005, EXPT STRESS ANAL
  • [9] YIELDING OF STEEL SHEETS CONTAINING SLITS
    DUGDALE, DS
    [J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1960, 8 (02) : 100 - 104
  • [10] Gdoutos E.E., 2005, Fracture mechanics an introduction
1234