Uniaxial strength of a composite array of overlaid and aligned prepreg platelets

2018 ◽  
Vol 109 ◽  
pp. 31-47 ◽  
Author(s):  
Sergii G. Kravchenko ◽  
Drew E. Sommer ◽  
R. Byron Pipes
Keyword(s):  
Uniaxial Strength

Uniaxial Mechanical Properties of Sandstone under Cyclic of Drying and Wetting

2011 ◽  
Vol 243-249 ◽  
pp. 2310-2313 ◽  
Author(s):  
Hua Yan Yao ◽  
Zhen Hua Zhang ◽  
Zhao Hui Zhu
Keyword(s):  
Mechanical Properties ◽  
Constitutive Model ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Test Results ◽  
Stress Strain ◽  
Deformation And Failure ◽  
Deformation Behaviors ◽  
Uniaxial Strength

Water is an important factor that influences the mechanical properties of rock. Uniaxial compressive experiments have been carried out on sandstone under different cyclic times of drying and wetting. The corresponding complete stress-strain curves are obtained, and characteristics of deformation and failure are analyzed. Test results show that when sandstone samples are submitted to cyclic of drying and wetting, the uniaxial strength and Young's modulus of sandstone obviously decrease. Then, the improved Duncan constitutive model is developed, which can do better in describing sample’s deformation behaviors subject to different cyclic times of drying and wetting. Introduction

Uniaxial strength and failure in sandstone containing a pre-existing 3-D surface flaw

2015 ◽  
Vol 194 (1) ◽  
pp. 59-79 ◽  
Author(s):  
Yinlong Lu ◽  
Lianguo Wang ◽  
Derek Elsworth
Keyword(s):  
Surface Flaw ◽  
Uniaxial Strength
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