Experimental approach for mixed-mode fatigue delamination crack growth with large-scale bridging in polymer composites

2013 ◽  
Vol 48 (25) ◽  
pp. 3111-3128 ◽  
Author(s):  
John W Holmes ◽  
Liu Liu ◽  
Bent F Sørensen ◽  
Søren Wahlgren
Keyword(s):  
Polymer Composites ◽  
Crack Growth ◽  
Mixed Mode ◽  
Large Scale ◽  
Experimental Approach ◽  
Delamination Crack ◽  
Scale Bridging

scholarly journals A mixed mode cohesive model for FRP laminates incorporating large scale bridging behaviour

2020 ◽  
Vol 239 ◽  
pp. 107274
Author(s):  
R.K. Joki ◽  
F. Grytten ◽  
B. Hayman ◽  
B.F. Sørensen
Keyword(s):  
Mixed Mode ◽  
Large Scale ◽  
Cohesive Model ◽  
Scale Bridging

A Study on Behavior of Mixed Mode Fatigue Crack Growth of Spiral Welding Part Under Bending Load

2010 ◽  
Author(s):  
Jung-Hun Choi ◽  
Il-Hwan Kim ◽  
Jae-Mean Koo ◽  
Chang-Sung Seok
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Mixed Mode ◽  
Large Scale ◽  
Tensile Load ◽  
Steel Pipe ◽  
Uniaxial Tensile ◽  
Bending Load ◽  
Welding Part

Manufacturing of large scale steel pipes in a nuclear power plant, offshore structures and a petroleum chemical plant, etc., a spiral welding method is mainly used. Such a welding part generally has several types of defect such as an undercut, a pit and a crack and in many cases, it finally reaches the failure by crack growth from these. The linear elastic fracture mechanics has been applied to a study on fatigue crack growth of welding parts, that is, as the weld, the heat affected zone (HAZ) and the base metal part in a large scale steel pipe by several reachers. However, since such studies are mainly the results by a standard specimen under uniaxial tensile load, they are different from the fatigue crack growth of a real large scale steel pipe under multiaxial load. In this study, we performed the evaluation for the characteristics of the mixed mode fatigue crack growth behavior of a spiral welding part in a real large scale steel pipe under bending load.

scholarly journals Fatigue Crack Growth Analysis with Extended Finite Element for 3D Linear Elastic Material

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 397
Author(s):  
Yahya Ali Fageehi
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Life ◽  
Crack Propagation ◽  
Crack Growth ◽  
Mixed Mode ◽  
Propagation Path ◽  
Loading Conditions ◽  
Extended Finite Element ◽  
Linear Elastic

This paper presents computational modeling of a crack growth path under mixed-mode loadings in linear elastic materials and investigates the influence of a hole on both fatigue crack propagation and fatigue life when subjected to constant amplitude loading conditions. Though the crack propagation is inevitable, the simulation specified the crack propagation path such that the critical structure domain was not exceeded. ANSYS Mechanical APDL 19.2 was introduced with the aid of a new feature in ANSYS: Smart Crack growth technology. It predicts the propagation direction and subsequent fatigue life for structural components using the extended finite element method (XFEM). The Paris law model was used to evaluate the mixed-mode fatigue life for both a modified four-point bending beam and a cracked plate with three holes under the linear elastic fracture mechanics (LEFM) assumption. Precise estimates of the stress intensity factors (SIFs), the trajectory of crack growth, and the fatigue life by an incremental crack propagation analysis were recorded. The findings of this analysis are confirmed in published works in terms of crack propagation trajectories under mixed-mode loading conditions.

A Novel Approach for the Preparation of Core-Shell MOF/polymer Composites as Mixed-Mode Stationary Phase

Talanta ◽  
2021 ◽  
pp. 122459
Author(s):  
Tiantian Si ◽  
Licheng Wang ◽  
Xiaojing Liang ◽  
Xiaofeng Lu ◽  
Shuai Wang ◽  
...  
Keyword(s):  
Stationary Phase ◽  
Polymer Composites ◽  
Mixed Mode ◽  
Core Shell ◽  
Novel Approach

Mixed-mode crack growth predictions

1987 ◽  
Vol 28 (2) ◽  
pp. 211-221 ◽  
Author(s):  
E.E. Gdoutos
Keyword(s):  
Crack Growth ◽  
Mixed Mode ◽  
Mixed Mode Crack

scholarly journals Thermoelectric Performance of Mechanically Mixed BixSb2-xTe3—ABS Composites

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1706
Author(s):  
Zacharias Viskadourakis ◽  
Argiri Drymiskianaki ◽  
Vassilis M. Papadakis ◽  
Ioanna Ioannou ◽  
Theodora Kyratsi ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Large Scale ◽  
Low Cost ◽  
Acrylonitrile Butadiene Styrene ◽  
Thermoelectric Performance ◽  
Scale Production ◽  
Bismuth Antimony Telluride ◽  
Mechanical Mixing ◽  
Large Scale Production ◽  
Bi Doping

In the current study, polymer-based composites, consisting of Acrylonitrile Butadiene Styrene (ABS) and Bismuth Antimony Telluride (BixSb2−xTe3), were produced using mechanical mixing and hot pressing. These composites were investigated regarding their electrical resistivity and Seebeck coefficient, with respect to Bi doping and BixSb2-xTe3 loading into the composite. Experimental results showed that their thermoelectric performance is comparable—or even superior, in some cases—to reported thermoelectric polymer composites that have been produced using other complex techniques. Consequently, mechanically mixed polymer-based thermoelectric materials could be an efficient method for low-cost and large-scale production of polymer composites for potential thermoelectric applications.

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