Quasi-static bearing failure of CFRP composite in biaxially loaded bolted joints

2015 ◽  
Vol 125 ◽  
pp. 60-71 ◽  
Author(s):  
Zlatan Kapidžić ◽  
Hans Ansell ◽  
Joakim Schön ◽  
Kjell Simonsson
Keyword(s):  
Bolted Joints ◽  
Bearing Failure ◽  
Cfrp Composite

Fatigue bearing failure of CFRP composite in bolted joints exposed to biaxial variable amplitude loading at elevated temperature

2016 ◽  
Vol 142 ◽  
pp. 71-77 ◽  
Author(s):  
Zlatan Kapidžić ◽  
Hans Ansell ◽  
Joakim Schön ◽  
Kjell Simonsson
Keyword(s):  
Elevated Temperature ◽  
Bolted Joints ◽  
Bearing Failure ◽  
Variable Amplitude Loading ◽  
Variable Amplitude ◽  
Cfrp Composite

Strength Prediction of Double-Lap Bolted Joints of Woven Fabric CFRP Composite Plates Using Hashin Formulations

2015 ◽  
Vol 802 ◽  
pp. 290-294
Author(s):  
Hilton Ahmad ◽  
Mustafa Abbas Abed
Keyword(s):  
Failure Modes ◽  
Composite Plates ◽  
Bolted Joints ◽  
Woven Fabric ◽  
Strength Prediction ◽  
Bearing Failure ◽  
Bolted Joint ◽  
Element Analysis ◽  
Bearing Failures ◽  
Cfrp Composite

Failure modes in composite plates with bolted joint configuration include net-tension, shear-out and bearing failures. Few analytical and numerical approaches in strength prediction frameworks of composite plates with bolted joints were reported in the literatures. Present works are dealing with strength prediction in bearing failure of woven fabric CFRP plates with double lap bolted joint configurations by modeling 3D finite element analysis framework. The pre-processing stage is modeled using commercial ABAQUS CAE package and takes into account all parts interactions, clamping pressure and friction contact. Testing series are following the experimental works found from the literatures with variation of plate width to hole diameter (W/d) ratios and incorporated with finger-tight clamp-up. Hashin failure criterion was implemented as constitutive modeling in current analysis, based on ply-by-ply approaches found to be more appropriate phenomenon in bearing failure. The strength prediction results demonstrated good agreement with all experimental datasets particularly with bearing failures as compared with previously reported work, used stress concentration approach found to be accurate in net-tension failure only.

Fatigue bearing failure of CFRP composite in biaxially loaded bolted joints at elevated temperature

2015 ◽  
Vol 127 ◽  
pp. 298-307 ◽  
Author(s):  
Zlatan Kapidžić ◽  
Hans Ansell ◽  
Joakim Schön ◽  
Kjell Simonsson
Keyword(s):  
Elevated Temperature ◽  
Bolted Joints ◽  
Bearing Failure ◽  
Cfrp Composite

On-site monitoring of bearing failure in composite bolted joints using built-in eddy current sensing film

2020 ◽  
pp. 002199832097973
Author(s):  
Qijian Liu ◽  
Hu Sun ◽  
Yuan Chai ◽  
Jianjian Zhu ◽  
Tao Wang ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Eddy Current ◽  
Failure Modes ◽  
Bolted Joints ◽  
Bearing Failure ◽  
Monitoring Method ◽  
Current Sensing ◽  
Site Monitoring ◽  
Array Sensing ◽  
Bearing Damage

Bearing damage is one of the common failure modes in composite bolted joints. This paper describes the development of an on-site monitoring method based on eddy current (EC) sensing film to monitor the bearing damage in carbon fiber reinforced plastic (CFRP) single-lap bolted joints under tensile testing. Configuration design and operating principles of EC array sensing film are demonstrated. A series of numerical simulations are conducted to analyze the variation of EC when the bearing failure occurs around the bolt hole. The results of damage detection in the horizontal direction and through the thickness direction in the bolt hole with different exciting current directions are presented by the finite element method (FEM). Experiments are performed to prove the feasibility of the proposed EC array sensing film when the bearing failure occurs in CFRP single-lap bolted joints. The results of numerical simulations and experiments indicate that bearing failure can be detected according to the variation of EC in the test specimen.

Subcritical damage mechanisms of bolted joints in CFRP composite laminates

2013 ◽  
Vol 54 ◽  
pp. 20-27 ◽  
Author(s):  
A. Ataş ◽  
C. Soutis
Keyword(s):  
Composite Laminates ◽  
Bolted Joints ◽  
Damage Mechanisms ◽  
Cfrp Composite

3D explicit simulation of bearing failure in metal-composite bolted joints

2021 ◽  
pp. 115108
Author(s):  
Mohammad S. Rouhi ◽  
Dimitra Ramantani ◽  
Tong Earn Tay
Keyword(s):  
Bolted Joints ◽  
Metal Composite ◽  
Bearing Failure ◽  
Explicit Simulation

Detectability of Bearing Failure of Composite Bolted Joints by Electric Resistance Change Method

2006 ◽  
pp. 957-962
Author(s):  
Yoshinobu Shimamura ◽  
Keiko Oda ◽  
Akira Todoroki ◽  
Masahito Ueda
Keyword(s):  
Bolted Joints ◽  
Bearing Failure ◽  
Electric Resistance ◽  
Resistance Change

Strength predictions of single-lap woven fabric Kenaf composites bolted joints

2020 ◽  
Vol 14 (4) ◽  
pp. 7389-7395
Author(s):  
H. Ahmad ◽  
K. Supar
Keyword(s):  
Failure Modes ◽  
Bolted Joints ◽  
Woven Fabric ◽  
Strength Prediction ◽  
Good Prediction ◽  
Bearing Failure ◽  
Concentration Problem ◽  
Fabric Strength ◽  
Kenaf Composites ◽  
Kenaf Fibers

Application of woven fabric kenaf fibers in production of polymeric composites (known as woven fabric kenaf reinforced composite (WKRP)) were readily available in the literatures due to excellent tensile strength and elongation at break. Nevertheless, there are less reported work and information regarding to performance of these materials in bolted joints problem. Bolted joints demonstrate complicated damage morphologies either net-tension, shear-out or bearing failure modes dependence upon combination arrays of lay-up/joint variables. XFEM approach has been reported in the literature, yet the agreements are limited to net-tension failure resulting from stress concentration problem. The aim of this paper to carry out strength prediction work of single-lap WKRP/aluminium bolted joints by using Hashin formulation within 3D finite element framework. Hashin formulation which based on ply-by-ply basis seen to perform better prediction to bearing failure modes. The material properties incorporated within Hashin formulation was taken from a single-ply of woven fabric. Strength prediction from Hashin formulation showed a difference of less than ±25% in net tension-bearing failure mode, but less good predictions (some lay-up showed discrepancies of 50%) in smaller W/d to give net-tension mode. Good prediction in net-tension-bearing failure were exhibited in Hashin formulation than XFEM approach as bearing failure is based on ply-by-ply basis due to fiber kinking and matrix compression.

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