Mesh Superposition‐based Multiscale Stress Analysis of Composites using Homogenization Theory and Re‐localization Technique Considering Fiber Location Variation

2021 ◽  
Author(s):  
S. Sakata ◽  
S. Tanimasu
Keyword(s):  
Stress Analysis ◽  
Homogenization Theory ◽  
Localization Technique

Free Edge Stress Analysis of Unidirectional CFRP Laminates Based on a Homogenization Theory for Time-Dependent Composites

2013 ◽  
Vol 535-536 ◽  
pp. 397-400 ◽  
Author(s):  
Keita Goto ◽  
Tetsuya Matsuda
Keyword(s):  
Carbon Fiber ◽  
Stress Analysis ◽  
Tensile Load ◽  
Free Edge ◽  
Time Dependent ◽  
Homogenization Theory ◽  
Uniaxial Tensile ◽  
Cfrp Laminates ◽  
Reinforced Plastic ◽  
Free Edges

In this study, distributions of microscopic stress at free edges of unidirectional carbon fiber-reinforced plastic laminates (CFRP laminates) are analyzed three-dimensionally, based on a homogenization theory for time-dependent composites. For this, the homogenization theory is reconstructed for free edge problems using a traction-free boundary condition. Then, an analysis domain is reduced using the point-symmetry of the internal structure of the unidirectional CFRP laminate. Moreover, the substructure method is newly introduced into the theory to reduce the computational costs required for the analysis. The present method is then applied to the elastic-viscoplastic microscopic stress analysis at free edges of unidirectional carbon fiber/epoxy laminates subjected to an in-plane uniaxial tensile load. It is shown that complex microscopic stress distributions occur in the vicinity of the free edge, especially around fiber/matrix interface regions.

FORCE DISTRIBUTIONS AND STRESS ANALYSIS OF THE INTOR-CH SUPERCONDUCTING COIL

1984 ◽  
Vol 45 (C1) ◽  
pp. C1-901-C1-904 ◽  
Author(s):  
C. Marinucci ◽  
L. Palladino ◽  
G. Pasotti ◽  
M. V. Ricci ◽  
G. Vécsey
Keyword(s):  
Stress Analysis ◽  
Superconducting Coil

Scale transition models and X-ray stress analysis

2003 ◽  
Vol 100 (12) ◽  
pp. 1137-1149
Author(s):  
M. François
Keyword(s):  
Stress Analysis ◽  
X Ray ◽  
Scale Transition ◽  
Transition Models

Diffraction stress analysis of strongly fibre-textured gold layers

2006 ◽  
Vol 2006 (suppl_23_2006) ◽  
pp. 55-60 ◽  
Author(s):  
A. Kumar ◽  
U. Welzel ◽  
E. J. Mittemeijer
Keyword(s):  
Stress Analysis
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