Experimental analysis and modeling of biaxial mechanical behavior of woven composite reinforcements

2001 ◽  
Vol 41 (3) ◽  
pp. 260-269 ◽  
Author(s):  
K. Buet-Gautier ◽  
P. Boisse
2002 ◽  
Vol 15 (6) ◽  
pp. 545-555 ◽  
Author(s):  
Gilles Hivet ◽  
Jean Launay ◽  
Alain Gasser ◽  
Jean Luc Daniel ◽  
Philippe Boisse

2014 ◽  
Vol 611-612 ◽  
pp. 292-299 ◽  
Author(s):  
Sylvain Mathieu ◽  
Philippe Boisse ◽  
Nahiene Hamila ◽  
Florent Bouillon

3D woven composite reinforcements preforming simulations are an unavoidable step of composite part processing. The present paper deals with thick composite fabric behavior modelling and issues arising during the numerical simulation of preforming. After the description of the independent deformation modes of initially orthotropic reinforcements, a physically motivated and invariant based hyperelastic strain energy density is introduced. This constitutive law is used to show the limitations of a classical finite element formulation in 3D fabric simulations. Tension locking is highlighted in bias extension tests and a reduced integration hexahedral finite element with specific physical hourglass stabilization is proposed. Instabilities due to the highly anisotropic behavior law, witnessed in bending dominated situations, are exposed and a stabilization procedure is initiated.


2020 ◽  
Vol 250 ◽  
pp. 112602
Author(s):  
Jie Wang ◽  
Peng Wang ◽  
Nahiene Hamila ◽  
Philippe Boisse

1984 ◽  
Vol 106 (1) ◽  
pp. 130-136 ◽  
Author(s):  
W. T. Asbill ◽  
P. D. Pattillo ◽  
W. M. Rogers

The purpose of this investigation was to gain a better understanding into the mechanical behavior of the API 8 Round casing connection, when subjected to service loads of assembly interference, tension and internal pressure. The connection must provide both structural and sealing functions and these functions were evaluated by several methods. Part I discusses the methods of analysis, which include hand calculations using strength of materials, finite element method via unthreaded and threaded models, and experimental analysis using strain gages. Comparisons of all three methods are made for stresses and show that the finite element method accurately models connection behavior.


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