scholarly journals Impact of Strain Rate on Thermomechanical Coupling Effects in TiNi SMA Subjected to Compression

2012 ◽  
Vol 53 (11) ◽  
pp. 1905-1909 ◽  
Author(s):  
Elzbieta A. Pieczyska ◽  
Hisaaki Tobushi ◽  
Karol Kulasinski ◽  
Kohei Takeda
Keyword(s):  
Strain Rate ◽  
Thermomechanical Coupling ◽  
Coupling Effects

Experimental investigation and modeling of dynamic thermomechanical behavior of 4-harness satin weave carbon/epoxy composites

2017 ◽  
Vol 31 (9) ◽  
pp. 1181-1203 ◽  
Author(s):  
Xueyao Hu ◽  
Hui Guo ◽  
Weiguo Guo ◽  
Feng Xu ◽  
Longyang Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Strain Rate ◽  
Composite Laminates ◽  
Failure Modes ◽  
Shear Failure ◽  
Experimental Studies ◽  
Temperature Shift ◽  
Thermomechanical Coupling ◽  
Longitudinal Splitting ◽  
Wide Range

Theoretical and experimental studies on the compressive mechanical behavior of 4-harness satin weave carbon/epoxy composite laminates under in-plane loading are conducted over the temperature range of 298–473 K and the strain rate range of 0.001–1700/s in this article. The stress–strain curves of 4-harness satin weave composites are obtained at different strain rates and temperatures, and key mechanical properties of the material are determined. The deformation mechanism and failure morphology of the samples are observed and analyzed by scanning electron microscope (SEM) micrographs. The results show that the uniaxial compressive mechanical properties of 4-harness satin weave composites are strongly dependent on the temperature but are weakly sensitive to strain rate. The peak stress and elastic modulus of the material have the trend of decrease with the increasing of temperature, and the decreasing trend can be expressed as the functional relationship of temperature shift factor. In addition, SEM observations show that the quasi-static failure mode of 4-harness satin weave composites is shear failure along the diagonal lines of the specimens, while the dynamic failure modes of the material are multiple delaminations and longitudinal splitting, and with the increasing of temperature, its longitudinal splitting is more serious, but the delamination is relatively reduced. A constitutive model with thermomechanical coupling effects is proposed based on the experimental results and the increment theory of elastic–plastic mechanics. The experimental verification and numerical analysis show that the model is shown to be able to predict the finite deformation behavior of 4-harness satin weave composites over a wide range of temperatures.

Thermomechanical coupling effects on fractured solids

1996 ◽  
Vol 78 (1) ◽  
pp. 67-87 ◽  
Author(s):  
N. S. Sun ◽  
T. R. Hsu
Keyword(s):  
Thermomechanical Coupling ◽  
Coupling Effects

Thermomechanical coupling effects at high flight speeds

AIAA Journal ◽  
1994 ◽  
Vol 32 (2) ◽  
pp. 425-430 ◽  
Author(s):  
O. R. Odabas ◽  
N. Sarigul-Klijn
Keyword(s):  
Thermomechanical Coupling ◽  
Coupling Effects
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