TY  - JOUR
T1  - Mechanical and Temperature Stress Composite Material Pipes with Finite Length
AU - Toma Karash, Emad AU - Abdul Hakeem Husain, Nawal AU - Abed Alsttar Sediqer, Tymor 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 11
SP  - 4156
EP  - 4164
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.4156.4164
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.4156.4164
KW  - strain
KW  -fiberglass
KW  -Stress
KW  -outer
KW  -composite pipe
KW  -finite length
AB  - The stress and strain condition of a multi-layer hollow cylinder of limited length under the effect of
internal pressure and heat is confirmed on the basis of the classical theory of anisotropic body elasticity. The
kinematic and static conditions of contact coordinating surfaces of neighboring layers are supposed ideal. By
using a multi-layered nearby based on the theory of the layered composites, the solutions of temperature,
displacements and mechanical thermal stresses in a functionally stepped circular hollow cylinder are obtainable
in this research. The cylinder has finite length and is yielded to to axisymmetric mechanical and thermal loads.
The values of the internal pressure and temperature vary sinusoid ally laterally the length of the cylinder. The
results showed that, the increase in temperature on the outer surface of the composite pipe has a significant
effect on its stress state. The maximum normal stresses in the longitudinal direction in the outer layer of
duralumin increased by 59% with an increase in temperature of only 30 K and 57% in bearing layer of fiberglass.
When analyzing the changes of normal stresses in the circumferential direction of the cylinder temperature rise
30 K marked decrease in these stresses of 6% in the outer layer and 2% in the carrier layer.
ER  -