Stress distribution in multilayered composite material with curved structures (model of a piecewise homogeneous body)

1988 ◽  
Vol 23 (4) ◽  
pp. 396-403 ◽  
Author(s):  
S. D. Akbarov ◽  
A. N. Guz'
Keyword(s):  
Composite Material ◽  
Stress Distribution ◽  
Homogeneous Body ◽  
Multilayered Composite ◽  
Curved Structures ◽  
Piecewise Homogeneous Body

Statics of Laminated and Fibrous Composites With Curved Structures

1992 ◽  
Vol 45 (2) ◽  
pp. 17-34 ◽  
Author(s):  
S. D. Akbarov ◽  
A. N. Guz’
Keyword(s):  
Composite Material ◽  
Solid Body ◽  
Three Dimensional ◽  
Local Distribution ◽  
Homogeneous Body ◽  
Deformable Solid ◽  
Body Model ◽  
Curved Structures ◽  
Piecewise Homogeneous Body ◽  
Deformable Solid Body

A broad and detailed review is presented on problems of statics of mechanics of laminated and fibrous composite materials with curved structures. Studies are discussed which were carried out based on the piecewise-homogeneous body model using exact three-dimensional equations of deformable solid body mechanics. The classification was made according to the type of composite (laminated, fibrous), the form of bending in the structure of composites considered, the materials properties (isotropic, anisotropic), the properties of binder and filler, and their models (elastic, viscoelastic). The formulation of the problem is presented for laminated and fibrous composites with bent, curved structures. Two types of bending are distinguished according to the forms of reinforcing elements bending: (1) periodic; (2) local. For every type of bending, solution methods of corresponding problems are presented. Moreover, according to the form of the location of neighboring curved, bent layers, with respect to each other, two types of bending are distinguished—the monophasic and the antiphasic. Detailed presentation is given of some very significant specific results, illustrating the influence of reinforcing element bending on local distribution of stresses in every component of the composite material. Tables and graphs are presented from publications on this subject. Some applications are presented of results based on the piecewise-homogeneous body model in composite mechanics. In conclusion, some areas of future research are proposed. The situations presented prove the theoretical and practical importance of investigations discussed in the review. In the analysis of strength problems, in many cases information is needed on the local distribution of the stress-deformed state in every component of the composite material with bent, curved structures. Information of this type could be obtained only within the framework of the piecewise-homogeneous body model using exact three-dimensional equations of deformable solid body mechanics.

Ultrasonic Bulk Waves Measurements for Defect Detection of Composite Materials

2017 ◽  
Vol 268 ◽  
pp. 401-406
Author(s):  
Nurul Wahida Zainal Abidin Sham ◽  
Md Supar Rohani
Keyword(s):  
Composite Material ◽  
Defect Detection ◽  
Calculation Method ◽  
Material Model ◽  
Test Material ◽  
Bottom Surface ◽  
Bulk Wave ◽  
Multilayered Composite ◽  
Wave Measurements ◽  
Percentage Difference

The defect detection in composite material is important for its quality control where the hidden defect such as crack, corrosion, notch, holes, void and porosity can develop. In this paper, the ultrasonic bulk wave measurements of longitudinal and shear waves are used to identify defect in the multilayered composite material. This study employs pulse echo technique and utilized angle beam transducer. The composite material model investigated in this contribution are made of 24 mm and 12 mm thick Aluminium plates with a width of 100 mm and a length of 203 mm which are separated with an approximately 1 mm thick oil layer. A simulated defect is created in the composite test material by drilling a hole with 2.5 mm diameter and 3 mm depth on the bottom surface of the third layer material. Finding indicates that the defect is located at 53.39 mm from transducer and the percentage difference of the defect location compared to the calculation method is 7%. It indicates that the proposed method can be use to detect defect in multilayered composite material within 10% accuracy compared to the calculation method.

Investigation on stress distribution of multilayered composite structure (MCS) using infrared thermographic technique

2013 ◽  
Vol 61 ◽  
pp. 134-143 ◽  
Author(s):  
Junyan Liu ◽  
Jinlong Gong ◽  
Liqiang Liu ◽  
Lei Qin ◽  
Yang Wang
Keyword(s):  
Stress Distribution ◽  
Composite Structure ◽  
Multilayered Composite

Interaction between cracks in a piecewise-homogeneous body

1992 ◽  
Vol 28 (12) ◽  
pp. 815-824 ◽  
Author(s):  
M. V. Khai ◽  
A. I. Stepanyuk
Keyword(s):  
Homogeneous Body ◽  
Piecewise Homogeneous Body

scholarly journals On the plastic rupture lines at a corner point of the piecewise homogeneous body

2016 ◽  
pp. 56-61
Author(s):  
A.A. Kaminsky ◽  
◽  
L.A. Kipnis ◽  
T.V. Polischuk ◽  
◽  
...  
Keyword(s):  
Corner Point ◽  
Homogeneous Body ◽  
Piecewise Homogeneous Body

Vibration control ability of multilayered composite material made of epoxy beam and polyurethane copolymer with shape memory effect

2004 ◽  
Vol 94 (1) ◽  
pp. 302-307 ◽  
Author(s):  
Jae Heung Yang ◽  
Byoung Chul Chun ◽  
Yong-Chan Chung ◽  
Jae Whan Cho ◽  
Bong Gyoo Cho
Keyword(s):  
Composite Material ◽  
Shape Memory ◽  
Vibration Control ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Multilayered Composite

Viscoelastic stress distribution in a two-phase composite material model.

AIAA Journal ◽  
1968 ◽  
Vol 6 (12) ◽  
pp. 2442-2444 ◽  
Author(s):  
ROBERT M. HACKETT
Keyword(s):  
Composite Material ◽  
Stress Distribution ◽  
Material Model ◽  
Two Phase

Simulation of the microwave heating of a thin multilayered composite material: A parameter analysis

2018 ◽  
Author(s):  
Hermine Tertrais ◽  
Anaïs Barasinski ◽  
Francisco Chinesta
Keyword(s):  
Composite Material ◽  
Microwave Heating ◽  
Parameter Analysis ◽  
Multilayered Composite

INVESTIGATION OF DIFFUSION OF ALLOYING ELEMENTS DURING THERMAL CYCLING OF MULTILAYER COMPOSITE MATERIAL MADE OF CHROME AND CARBON STEELS

2021 ◽  
pp. 74-91
Author(s):  
A.A. Khudnev ◽  
◽  
A.I. Plokhikh ◽  
R.M. Dvoretskov ◽  
B.V. Schetanov ◽  
...  
Keyword(s):  
Composite Material ◽  
Thermal Cycling ◽  
Microstructural Analysis ◽  
Carbon Steels ◽  
Alloying Elements ◽  
Multilayer Composite ◽  
Initial State ◽  
Multilayered Composite ◽  
Partial Redistribution ◽  
Multilayer Composite Material

In this work the effect of five cycles of heating to a temperature of 1000 °C and three cycles of heating to a temperature of 1100 °C on the structure of multilayered composite material consisted of 100 alternating layers of 08H18 and U8 steels was investigated via the methods of microstructural analysis. It is shown that already in the initial state after rolling there was a redistribution of carbon between the layers of the material. Thermal cycling led to a partial redistribution of chromium in the material, a change in the structure and thickness of the layers.

Sign in / Sign up

Export Citation Format

Share Document