Mechanical characterization of polytetrafluoroethylene polymer using full-field displacement method

被引：6
|
作者：
Nunes, L. C. S. [1 ]
机构：
[1] Univ Fed Fluminense, Dept Mech Engn PGMEC TEM, Lab Optomech LOM LMTA, BR-24210240 Niteroi, RJ, Brazil
来源：
OPTICS AND LASERS IN ENGINEERING | 2011年 / 49卷 / 05期
关键词：
Parameter estimation; Polytetrafluoroethylene; Crack; Digital image correlation; ELASTIC CHARACTERIZATION; PARAMETERS; BEHAVIOR; PTFE; MODE;
D O I：
10.1016/j.optlaseng.2011.01.011
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The aim of this work is to estimate two important material properties of the polytetrafluoroethylene (PTFE) polymer by means of a single experimental test. The displacement fields around a crack tip are used for estimating the modulus of elasticity (or, Young's modulus) and Poisson's ratio. These parameters are evaluated by fitting linear fracture mechanic expression of displacement fields in the vicinity of the crack, for mode I, to the experimental data. Measurements of these displacements are carried out using digital image correlation (DIC) method. In this way, the experimental procedure is conducted by loading a double-edge-cracked plate specimen. In order to validate the results, two available experimental tests have been performed. The modulus of elasticity is determined by means of the tensile test, using a standard test machine. Moreover, the Poisson's ratio is obtained by measuring lateral compressive and longitudinal extensional strain using DIC method. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：640 / 646
页数：7
相关论文
共 50 条
  • [1] Full-field characterization of mechanical behavior of polyurethane foams
    Jin, Helena
    Lu, Wei-Yang
    Scheffel, Simon
    Hinnerichs, Terry D.
    Neilsen, Michael K.
    [J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2007, 44 (21) : 6930 - 6944
  • [2] Identification of a damage law by using full-field displacement measurements
    Claire, Damien
    Hild, Francois
    Roux, Stephane
    [J]. INTERNATIONAL JOURNAL OF DAMAGE MECHANICS, 2007, 16 (02) : 179 - 197
  • [3] Image Analysis for Full-Field Displacement/Strain Data: Method and Applications
    Wang, Weizhuo
    Mottershead, John E.
    Sebastian, Christopher M.
    Patterson, Eann A.
    Siebert, Thorsten
    Ihle, Alexander
    Pipino, Andrea
    [J]. ADVANCES IN EXPERIMENTAL MECHANICS VIII, 2011, 70 : 39 - +
  • [4] Full-Field Displacement Measurements of Helicopter Rotor Blades Using Stereophotogrammetry
    Zuo, Chenglin
    Wei, Chunhua
    Ma, Jun
    Yue, Tingrui
    Liu, Lei
    Shi, Zheyu
    [J]. INTERNATIONAL JOURNAL OF AEROSPACE ENGINEERING, 2021, 2021
  • [5] Novel Method for Bridge Structural Full-Field Displacement Monitoring and Damage Identification
    Duan, Xin
    Chu, Xi
    Zhu, Weizhu
    Zhou, Zhixiang
    Luo, Rui
    Meng, Junhao
    [J]. APPLIED SCIENCES-BASEL, 2023, 13 (03):
  • [6] Parameters identification of polymer concrete using a fracture mechanics test method and full-field measurements
    Nunes, L. C. S.
    Reis, J. M. L.
    da Costa Mattos, H. S.
    [J]. ENGINEERING FRACTURE MECHANICS, 2011, 78 (17) : 2957 - 2965
  • [7] Identification methodology of the mechanical behaviour of hyperelastic foams using full-field measurements and an inverse method
    Pierron, Fabrice
    Guo, Baoqiao
    Rotinat, Rene
    [J]. MECANIQUE & INDUSTRIES, 2009, 10 (01): : 55 - 59
  • [8] FULL-FIELD DISPLACEMENT AND STRAIN ROSETTES BY MOIRE INTERFEROMETRY
    WEISSMAN, EM
    POST, D
    [J]. EXPERIMENTAL MECHANICS, 1982, 22 (09) : 324 - 328
  • [9] Extracting fracture parameters using local collocation of full-field displacement data
    Krishnamoorthy, H
    Tippur, HV
    [J]. EXPERIMENTAL TECHNIQUES, 1998, 22 (01) : 22 - 25
  • [10] Extracting fracture parameters using local collocation of full-field displacement data
    H. Krishnamoorthy
    H. V. Tippur
    [J]. Experimental Techniques, 1998, 22 : 22 - 25
12345