Nonlinear analysis of the cured shape and residual stress of unsymmetric composite laminates

2000 ◽  
Author(s):  
Maenghyo Cho ◽  
Seungwoo Yoo
Keyword(s):  
Residual Stress ◽  
Nonlinear Analysis ◽  
Composite Laminates

Measurement of residual stress in thick section composite laminates using the deep-hole method

2005 ◽  
Vol 47 (11) ◽  
pp. 1718-1739 ◽  
Author(s):  
M.G. Bateman ◽  
O.H. Miller ◽  
T.J. Palmer ◽  
C.E.P. Breen ◽  
E.J. Kingston ◽  
...  
Keyword(s):  
Residual Stress ◽  
Composite Laminates ◽  
Thick Section ◽  
Deep Hole

Effect of residual stress on the bending response of L-shaped composite laminates

2020 ◽  
Vol 246 ◽  
pp. 112425
Author(s):  
Kenan Cinar ◽  
Ibrahim Guven ◽  
Nuri Ersoy
Keyword(s):  
Residual Stress ◽  
Composite Laminates ◽  
Bending Response

Determination of residual stress and thermal history for IM7/977-2 composite laminates

2005 ◽  
Vol 65 (13) ◽  
pp. 2014-2024 ◽  
Author(s):  
William A. Schulz ◽  
Donald G. Myers ◽  
Tom N. Singer ◽  
Peter G. Ifju ◽  
Raphael T. Haftka
Keyword(s):  
Residual Stress ◽  
Thermal History ◽  
Composite Laminates

Monitoring of Multidirectional and Cure-Induced Strain in CFRP Laminates Using FBG Sensors

2019 ◽  
Vol 953 ◽  
pp. 72-79 ◽  
Author(s):  
Cheng Biao Jiang ◽  
Li Hua Zhan ◽  
Xiao Bo Yang ◽  
Xiao Ping Chen ◽  
Zi Jun Lin ◽  
...  
Keyword(s):  
Residual Stress ◽  
Residual Strain ◽  
Composite Laminates ◽  
Compressive Strain ◽  
Fibre Bragg Grating ◽  
Cfrp Laminates ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Fbg Sensors ◽  
Curing Cycle

During the curing cycle, the residual stress has influence on cure-induced deformation for carbon fiber reinforced plastics (CFRP) laminates, which is highly susceptible to the ply design. Therefore, the change laws of strain and the effect of residual stress in CFRP laminates after curing, which is of great significance to ply design, were cleared by using the combining pattern of thermocouple and fibre Bragg grating (FBG) sensors. For the FBG sensors embedded with different directions in lay-up CFRP laminates, the temperature and strain in different directions of composite laminates were obtained in real-time. Monitoring results show that compared with strain in 45° direction, the carbon fibers (CF) act stronger to inhibit strain in 0° direction and weaker to inhibit strain in 90° direction of resin. After curing, the residual strain in 0° direction is tensile strain, and the residual strain in 45° direction and 90° direction are compressive strain. Meanwhile the value of residual strain in 90° direction is greater than that in 45° direction.

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