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9 lut 2024 · This paper demonstrates the application of the Johnson–Holmquist II (JH-2) model with correlated and validated parameters to simulate the behavior of a sandstone.
In this study, a parameter determination method for the JH-2 constitutive model for Barre granite is proposed and verified. The verified method together with the JH-2 model is applied in the simulation of mechanical behaviors and damage evolution induced by blasting for tunnel excavation.
1 sie 2021 · This paper demonstrates the application of the Johnson–Holmquist II (JH-2) model with correlated and validated parameters to simulate the behavior of a sandstone.
1 lut 2023 · In this study, based on AD995 and sapphire, the method of obtaining and optimizing the key parameters of the Johnson-Holmquist constitutive model (JH-2 model) for typical brittle materials was established.
The second case uses the JH-2 model. Unlike the JHB model, the JH-2 model assumes that the damage variable increases progressively with plastic deformation. The material parameters used for the JH-2 model are listed in Table 4. The JH-2 model similarly consists of three components.
I'm self-developing explicit 3-D FEM code using GPGPU for my research regarding Penetration of projectile into rock. In the code, I'm incorporating JH-2(Johnson holmquist) constitutive model.
One of the most widely used constitutive models for simulating the post-yield response of ceramic materials is the JH-2 ceramic model. This constitutive equation was developed by Johnson and Holmquist and incorporates the effect of damage on residual material strength and the resulting bulking during the compres-sive failure of a ceramic material.
