Investigation of mixed mode brittle fracture in rounded-tip V-notched components

被引：104
|
作者：
Ayatollahi, M. R. [1 ]
Torabi, A. R. [1 ]
机构：
[1] Iran Univ Sci & Technol, Fatigue & Fracture Res Lab, Ctr Excellence Expt Solid Mech & Dynam, Dept Mech Engn, Tehran 16846, Iran
来源：
ENGINEERING FRACTURE MECHANICS | 2010年 / 77卷 / 16期
关键词：
Brittle fracture; Rounded-tip V-notch; RV-MTS criterion; RV-BD specimen; Mixed mode loading; STRESS INTENSITY FACTOR; FAILURE CRITERIA; ELASTIC-MATERIALS; SHARP NOTCHES; CRACK ONSET; U-NOTCHES; INITIATION; TOUGHNESS; SPECIMEN; STRENGTH;
D O I：
10.1016/j.engfracmech.2010.07.019
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A criterion is proposed for brittle fracture analysis in rounded-tip V-notched components. This criterion, called RV-MTS, is developed based on the maximum tangential stress (MTS) criterion proposed earlier for investigating mixed mode brittle fracture in sharp cracks. Using the RV-MTS criterion, a set of fracture curves is presented based on the notch stress intensity factors (NSIFs) for predicting mixed mode and also pure mode II fracture toughness of rounded-tip V-notches. The criterion is also able to predict fracture initiation angles under mixed mode loading. The validity of the criterion is evaluated by several fracture tests performed on the rounded-tip V-notched Brazilian disc (RV-BD) specimens made of PMMA. A good agreement is shown to exist between the theoretical predictions and the experimental results for various notch opening angles and different notch radii. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3087 / 3104
页数：18
相关论文
共 50 条
  • [41] Fracture analysis of V-notched rubbers: An experimental and theoretical study
    Heydari-Meybodi, Mahdi
    Ayatollahi, Majid R.
    Dehghany, Mohammad
    Berto, Filippo
    FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2019, 42 (03) : 732 - 742
  • [42] Compressive Brittle Fracture Prediction in Blunt V-Notched PMMA Specimens by Means of the Strain Energy Density Approach
    Torabi, A. R.
    Ayatollahi, M. R.
    Colussi, M.
    PHYSICAL MESOMECHANICS, 2018, 21 (02) : 104 - 109
  • [43] Mixed mode I/II fracture prediction of blunt V-notched nanocomposite specimens with nonlinear behavior by means of the Equivalent Material Concept
    Torabi, A. R.
    Rahimi, A. S.
    Ayatollahi, M. R.
    COMPOSITES PART B-ENGINEERING, 2018, 154 : 363 - 373
  • [44] V-notched elements under mode II loading conditions
    Sapora, Alberto
    Cornetti, Pietro
    Carpinteri, Alberto
    STRUCTURAL ENGINEERING AND MECHANICS, 2014, 49 (04) : 499 - 508
  • [45] Brittle fracture of U-notched graphite plates under mixed mode loading
    Berto, F.
    Lazzarin, P.
    Marangon, C.
    MATERIALS & DESIGN, 2012, 41 : 421 - 432
  • [46] Determination of the fatigue critical distance according to the Line and the Point Methods with rounded V-notched specimen
    Santus, C.
    Taylor, D.
    Benedetti, M.
    INTERNATIONAL JOURNAL OF FATIGUE, 2018, 106 : 208 - 218
  • [47] Elastic notch stress intensity factors for sharply V-notched rounded bars under torsion
    Zappalorto, M.
    Lazzarin, P.
    Berto, F.
    ENGINEERING FRACTURE MECHANICS, 2009, 76 (03) : 439 - 453
  • [48] Mixed mode fracture for notched structures
    Niu, LS
    Hu, QY
    Wang, W
    NOTCH EFFECTS IN FATIGUE AND FRACTURE, 2001, 11 : 117 - 126
  • [49] Experimental determination and sensitivity analysis of the fatigue critical distance obtained with rounded V-notched specimens
    Santus, C.
    Taylor, D.
    Benedetti, M.
    INTERNATIONAL JOURNAL OF FATIGUE, 2018, 113 : 113 - 125
  • [50] Evaluation of the equivalent material concept in mixed mode I/III fracture estimation of V-notched Al7075-T6 plates
    Saboori, Behnam
    Torabi, A. R.
    Kamjoo, M. R.
    ENGINEERING FRACTURE MECHANICS, 2020, 237 (237)
12345