Characterization of the small-strain shear modulus and the shear wave velocity of soils and rocks is an integral component of various seismic analyses, including site classification, hazard …

40 rows · In materials science, shear modulus or modulus of rigidity, denoted by G, or sometimes S or μ, is defined as the ratio of shear stress to the shear strain: The following chart gives …

The shear modulus is the ratio the shear stress needed to deform a material by a given angle (measured as the tangent of the deformation angle). As strain has

the dynamic Young's modulus, Ed, Poisson's ratio νd, and shear modulus Gd are calculated from the measured shear and longitudinal wave velocities V s and V p (about 1.5 V s ) as follows …

Rock Stiffness, Deformation To solve a σ′-ε problem, we must know how the rock deforms (strain -ε) in response to ∆σ′ This is often referred to as the “stiffness ” (or compliance, or elasticity, or …

Mar 20, 2025 · (2) Shear modulus (μ) is the ratio of the applied stress to the distortion (rotation) of a plane originally perpendicular to the applied shear stress; it is also termed the modulus of …

Determining the appropriate strength parameters are important as the design should be in accordance with the type of structures, loading characteristics and characteristics of rocks in …

From uniaxial compression test, young's modulus of elasticity and Poisson's ratio of rock specimen are determined if the stress strain behaviour till peak is captured. The slope of the …

seismic measurements are made under elastic, low-strain conditions. In the case of a simple elastic material, where non-destructive, low-strain is implicitly assumed, the seismic shear …

Sep 11, 2020 · Rigid rocks with a high value of Young's modulus will result in narrower fractures than rocks with a lower rigidity. The shear modulus, µ (Pa) or G describes the rigidity of a …

Two charts of compressional moduli (M) and AIp versus porosity in Fig. 18c-d confirmed that both M and AIp of MMF30 are underestimated by the soft sand model, while overestimated by the …

porosity range: rock is in the consolidated, frame-supporting state in the domain from zero to the critical porosity, and is in the suspension, fluid-supporting state in the domain from the critical …

Jun 24, 2010 · Lamé parameter (λ) and shear modulus (μ) are the most important, intrinsic, elastic properties of rocks. The Lamé parameter λ, which relates stresses and strains in perpendicular …

Mar 21, 2025 · Table 2 outlines the rock types analyzed, their geometrical forms, and the conducted measurements. ... The shear modulus of the crack-free solid was calculated to be …

Jan 29, 2025 · Fig. 1 – Types of stresses: (a) pressure, (b) tensile, (c) general with normal and tangential components, and (d) shearing stress (modified from Hubbert [1]). Fig. 2– Stresses …

2 days ago · Data collection. Rock mechanics tests on granites from Qingdao, Shandong Province, China, serve as prototypes. Granites were drilled as cylindrical specimens (diameter …

19 hours ago · The internal friction angle, tensile strength, and compressive strength are critical mechanical parameters that characterize a rock's resistance to shear and tensile failure. …

4 days ago · The excavation process for a deeply buried chamber in a high ground stress area is often dynamic. The design of reasonable excavation methods for differing geological …

19 hours ago · The crack initiation stress (σci) and crack damage stress (σcd) are two important stress thresholds for describing the progressive failure process of rocks. Accurately obtaining …