Identification of the filament stress transfer length in multifilament yarns using fiber bundle model and chain-of-bundles model

2011 ◽  
pp. 1213-1220
Author(s):  
R Rypl ◽  
R Chudoba ◽  
M Vo_echovsk_
Keyword(s):  
Fiber Bundle ◽  
Stress Transfer ◽  
Transfer Length ◽  
Fiber Bundle Model ◽  
Multifilament Yarns

An Energy-Based interpretation of Interfacial Adhesion from Single Fibre Composite Fragmentation Testing

1993 ◽  
Vol 2 (5) ◽  
pp. 096369359300200 ◽  
Author(s):  
H.D. Wagner ◽  
S. Ling
Keyword(s):  
Interfacial Adhesion ◽  
Mechanical Characteristics ◽  
Interfacial Shear Strength ◽  
Fibre Composite ◽  
Stress Transfer ◽  
Single Fibre ◽  
Transfer Length ◽  
Fragmentation Test ◽  
Energy Balance Approach ◽  
Fibre Matrix

An energy balance approach is proposed for the single fibre composite (or fragmentation) test, by which the degree of fibre-matrix bonding is quantified by means of the interfacial energy, rather than the interfacial shear strength, as a function of the fibre geometrical and mechanical characteristics, the stress transfer length, and the debonding length. The validity of the approach is discussed using E-glass fibres embedded in epoxy, both in the dry state and in the presence of hot distilled water.

Research of Stress Transfer Area and its Length Prediction of Single-Lap Adhesive Joint

2010 ◽  
Vol 129-131 ◽  
pp. 680-685
Author(s):  
Wei Ping Ouyang ◽  
Jian Ping Lin ◽  
Zhi Guo Lu
Keyword(s):  
Shear Stress ◽  
Adhesive Joint ◽  
Stress Transfer ◽  
Uniaxial Tensile ◽  
Stress And Strain ◽  
Significant Implication ◽  
Transfer Length ◽  
Fem Model ◽  
Strain Fracture ◽  
Stress And Strain Distribution

obtaining the law of stress and strain distribution of loaded adhesive joint has significant implication for joint design and its strength prediction. The dynamic FEM model of uniaxial tensile adhesive joint was established, in which strain fracture criteria is adopted. It can be observed from the FEM results that: lapped area of the joint bears shear stress primarily, the adherend areas located away from the lapped area bear steady tensile stress mainly and the adherend areas adjacent to lapped area endure tensile and shear stress simultaneously. Based on stress distribution characters, the joint was divided into three areas (lapped area, stress transfer area and uniform stress area) and an analytical model predicting the length of stress transfer areas was developed. DIC technology was applied to measure the whole field strain of the joint. It can be seen from the DIC results that the joints area division and the model of predicting the length of stress transfer length are feasible.

scholarly journals Modeling active fault systems and seismic events by using a fiber bundle model – example case: the Northridge aftershock sequence

Solid Earth ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 1519-1540
Author(s):  
Marisol Monterrubio-Velasco ◽  
F. Ramón Zúñiga ◽  
José Carlos Carrasco-Jiménez ◽  
Víctor Márquez-Ramírez ◽  
Josep de la Puente
Keyword(s):  
Fiber Bundle ◽  
Active Faults ◽  
Aftershock Sequence ◽  
Statistical Characteristics ◽  
Real Sequence ◽  
Random Load ◽  
Fault Systems ◽  
Aftershock Sequences ◽  
Fiber Bundle Model ◽  
Initial Load

Abstract. Earthquake aftershocks display spatiotemporal correlations arising from their self-organized critical behavior. Dynamic deterministic modeling of aftershock series is challenging to carry out due to both the physical complexity and uncertainties related to the different parameters which govern the system. Nevertheless, numerical simulations with the help of stochastic models such as the fiber bundle model (FBM) allow the use of an analog of the physical model that produces a statistical behavior with many similarities to real series. FBMs are simple discrete element models that can be characterized by using few parameters. In this work, the aim is to present a new model based on FBM that includes geometrical characteristics of fault systems. In our model, the faults are not described with typical geometric measures such as dip, strike, and slip, but they are incorporated as weak regions in the model domain that could increase the likelihood to generate earthquakes. In order to analyze the sensitivity of the model to input parameters, a parametric study is carried out. Our analysis focuses on aftershock statistics in space, time, and magnitude domains. Moreover, we analyzed the synthetic aftershock sequences properties assuming initial load configurations and suitable conditions to propagate the rupture. As an example case, we have modeled a set of real active faults related to the Northridge, California, earthquake sequence. We compare the simulation results to statistical characteristics from the Northridge sequence determining which range of parameters in our FBM version reproduces the main features observed in real aftershock series. From the results obtained, we observe that two parameters related to the initial load configuration are determinant in obtaining realistic seismicity characteristics: (1) parameter P, which represents the initial probability order, and (2) parameter π, which is the percentage of load distributed to the neighboring cells. The results show that in order to reproduce statistical characteristics of the real sequence, larger πfrac values (0.85<πfrac<0.95) and very low values of P (0.0<P≤0.08) are needed. This implies the important corollary that a very small departure from an initial random load configuration (computed by P), and also a large difference between the load transfer from on-fault segments than by off-faults (computed by πfrac), is required to initiate a rupture sequence which conforms to observed statistical properties such as the Gutenberg–Richter law, Omori law, and fractal dimension.

Characterization of the failure process in composite materials by the Fiber Bundle Model

2014 ◽  
Vol 71 ◽  
pp. 30-37 ◽  
Author(s):  
A. Hader ◽  
I. Achik ◽  
A. Lahyani ◽  
K. Sbiaai ◽  
Y. Boughaleb
Keyword(s):  
Composite Materials ◽  
Fiber Bundle ◽  
Failure Process ◽  
Fiber Bundle Model

The Fiber Bundle Model

2014 ◽  
Author(s):  
Alex Hansen ◽  
Per C. Hemmer ◽  
Strutarshi Pradhan
Keyword(s):  
Fiber Bundle ◽  
Fiber Bundle Model

Influence of material heterogeneities on crack propagation statistics using a Fiber Bundle Model

2019 ◽  
Vol 221 (1) ◽  
pp. 87-100
Author(s):  
François Villette ◽  
Julien Baroth ◽  
Frédéric Dufour ◽  
Jean-Francis Bloch ◽  
Sabine Rolland Du Roscoat
Keyword(s):  
Crack Propagation ◽  
Fiber Bundle ◽  
Fiber Bundle Model

scholarly journals Fractal frontiers of bursts and cracks in a fiber bundle model of creep rupture

2015 ◽  
Vol 92 (6) ◽  
Author(s):  
Zsuzsa Danku ◽  
Ferenc Kun ◽  
Hans J. Herrmann
Keyword(s):  
Fiber Bundle ◽  
Creep Rupture ◽  
Fiber Bundle Model
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