scholarly journals Mechanical Properties and Constitutive Equation of Pressed CL−20 Based Aluminized Explosives

FirePhysChem ◽  
2021 ◽  
Author(s):  
Xiao-Jun Feng ◽  
Bo Feng ◽  
Le-Xing Xue ◽  
Yu Shang
Keyword(s):  
Mechanical Properties ◽  
Constitutive Equation

2C1 Constitutive Equation of NBR and Influence of Deterioration to Mechanical Properties of It

2013 ◽  
Vol 2013 (0) ◽  
pp. 75-76
Author(s):  
Fumiko KAWASHIMA ◽  
Kenji HAMAD ◽  
Yuma OTSUKA ◽  
Kazuhito FUJIWARA ◽  
Hidehiro HATA
Keyword(s):  
Mechanical Properties ◽  
Constitutive Equation

Elastic-Plastic Analysis of the Interaction between Ice and Offshore Structures

2009 ◽  
Vol 417-418 ◽  
pp. 897-900
Author(s):  
Tao Yu ◽  
Wei Yang ◽  
Li Qiang Tang
Keyword(s):  
Mechanical Properties ◽  
Constitutive Equation ◽  
Stress Field ◽  
Offshore Structures ◽  
Offshore Platforms ◽  
Pressure Sensitivity ◽  
Strength Ratio ◽  
Structure Interaction ◽  
Plastic Analysis ◽  
Distribution Of Stress

In this paper, the mechanical properties of ice, which are affected by the existence of cavities and the different tensile-compression strength ratio, are analyzed in micromechanics view. Then the constitutive equation is established, and the distribution of stress field caused by the ice-structure interaction is constructed with the constitutive equation. Finally, the ultimate bearing capacity of ice is also discussed with different values of pressure sensitivity parameter and the tension-compression ratio. Thus, this paper provides the theoretical reference for offshore platforms design.

scholarly journals Characterisation of Skin Biomechanical Properties via Experiment-Numerical Integration

2018 ◽  
Vol 7 (4.26) ◽  
pp. 205
Author(s):  
Nor Fazli Adull Manan ◽  
Linasuriani Muhamad ◽  
Zurri Adam Mohd Adnan ◽  
Mohd Azman Yahaya ◽  
Jamaluddin Mahmud
Keyword(s):  
Mechanical Properties ◽  
Constitutive Equation ◽  
Numerical Integration ◽  
Soft Tissues ◽  
Biomechanical Properties ◽  
Test Machine ◽  
Medical Sciences ◽  
Ogden Model ◽  
Hyperelastic Model ◽  
Load Displacement

By having specific mechanical properties of skin, computational program and analysis become more reliable by showing the real skin behaviour. Up to date, mechanical properties of biological soft tissues (skin) haven’t been accepted solely for official usage. Therefore, characterisation of the skin biomechanical properties might contribute a new knowledge to the engineering and medical sciences societies. This paper highlights the success in characterising the hyperelastic parameters of leporine (rabbit) skin via experimental-numerical integration. A set of five sample of leporine skin were stretched using the conventional tensile test machine to generate the load-displacement graphs. Based on the Ogden’s constitutive equation and Mooney-Rivlin hyperelastic model, a stress-stretch equation was developed and a programme was written using Matlab. By varying the Ogden’s and Mooney-Rivlin’s parameters, the programme was capable of plotting stress-stretch and load-displacement graphs. The graphs that best match the experimental results will constitut to the corresponding coefficient, µ, and α for Ogden Model and C1 and C2 material parameter for Mooney-Rivlin Model that will best describe the behaviour of the leporine skin. The current results show that the Ogden’s coefficient and exponent for the subject was estimated to be (μ = 0.048MPa, α = 7.073) & (μ = 0.020MPa, α = 9.249) for Anterior-Posterior (AP) and Dorsal-Ventral (DV) respectively for Ogden Model. Meanwhile the value for Mooney-Rivlin Model were estimated to be (C1 = 1.271, C2 = 1.868) & (C1 = 1.128, C2 = 1.537) for AP and DV respectively, which is in close agreement to results found by other researchers. Further analyses for comparison could be carried out by developing mathematical model based on other constitutive equation such as Arruda-Boyce and Neo-Hookean. Nevertheless, this study has contributed to the knowledge about skin behaviour and the results are useful for references.  

scholarly journals Identification of Constitutive Equation for TRIP Steel and Its Application to Improve Mechanical Properties

2001 ◽  
Vol 44 (4) ◽  
pp. 443-452 ◽  
Author(s):  
Takeshi IWAMOTO ◽  
Yoshinobu KAWAGISHI ◽  
Toshio TSUTA ◽  
Shin-ichi MORITA
Keyword(s):  
Mechanical Properties ◽  
Constitutive Equation ◽  
Trip Steel

Measurement of the Mechanical Properties of the Human Lung Tissue

1987 ◽  
Vol 109 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Y. J. Zeng ◽  
D. Yager ◽  
Y. C. Fung
Keyword(s):  
Experimental Data ◽  
Mechanical Properties ◽  
Constitutive Equation ◽  
Lung Tissue ◽  
Human Lung ◽  
Biaxial Tension ◽  
Human Lung Tissue ◽  
Physical Constants

The mechanical properties of human lung tissue were measured in a state of biaxial tension. The experimental data were fitted with a pseudo-elastic constitutive equation proposed earlier and the physical constants were identified.

Evaluation of Mechanical Properties of Tubular Materials With Hydraulic Bulge Test for Superconducting Radio Frequency (SRF) Cavities

2013 ◽  
Vol 23 (3) ◽  
pp. 3500604-3500604 ◽  
Author(s):  
H Kim ◽  
M Sumption ◽  
H Lim ◽  
E Collings
Keyword(s):  
Mechanical Properties ◽  
Flow Stress ◽  
Constitutive Equation ◽  
Bulge Test ◽  
Hydraulic Pressure ◽  
Hydraulic Bulge ◽  
Superconducting Radio Frequency ◽  
Constitutive Properties ◽  
Srf Cavities ◽  
Bulge Height

The plastic constitutive equation of tubular materials under hydraulic pressure needs to be determined for the successful application of hydroforming technique to the seamless fabrication of multicell superconducting radiofrequency cavities. This paper provides the empirical constitutive properties of tubular material determined by tensile and hydraulic bulge tests. During an experimental bulge test, the internal pressure, bulge height and wall thickness were continuously measured. Based on this data, the flow stress curves were calculated using an analytical model. From the obtained flow stress curves, numerical simulations were performed, and the resulting bulge heights and wall thicknesses obtained were compared with the experimental results to verify the procedure.

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