Numerical simulation of frozen soil under uniaxial and coupled dynamic-static impact loads

Chunyu, Zhanfan; Zhu, Zhiwu; Tang, Wei; Zhang, Fulai; Fu, Tiantian

doi:10.2140/jomms.2021.16.677

Cited by 1 publication

(1 citation statement)

References 25 publications

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“…In order to simulate the interaction between contact objects and soil, Toh W et al [13] used an impact experimental machine to apply force. Based on elastoplastic deformation theory of soil, Zhan CY et al [14] adopted finite element modeling and calculation to simulate the relationship between stress and deformation of the soil caused by object contact, studied of the mechanical behavior of object soil coupling. Under quasi-static and dynamic loading conditions, Wang Z and Lu Y [15] conducted numerical simulations using obtained experimental data to study the impact of their interactions.…”

Section: Introductionmentioning

confidence: 99%

Constitutive Relationship of Soil in Contact with Mortar under Continuous Loading

Wang,

2024

Preprint

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Mortars will remain critical in future land wars due to their flexibility and versatility. When mortars are fired continuously, the contact soil is gradually compacted by the mortar base plate, and dynamic research into this process is the basis for innovative mortar design. However, the discontinuity and nonlinearity of soil contact absolutely necessitate the constitutive relationship of soil contact, which is difficult to study. Therefore, this study conducted experimental research and theoretical derivation to establish an accurate dynamic model of the mortar system. First, based on the nonlinear elastic-plastic theory and the stress-strain relationship of soil under cyclic loading, a theoretical analysis method for the constitutive relationship of contact soil under continuous loading was proposed. Second, an experimental and testing system was designed to simulate launch loads, and the stress-strain response of soil under continuous impact loads was obtained experimentally. Subsequently, based on theoretical analysis and experimental data, the stress-strain relationship during the gradual compaction of soil was established using the least squares method. Finally, a constitutive relationship model of the contact soil in the mortar system was established in ABAQUS using the VUMAT subroutine interface, and the calculated results were compared and analyzed with traditional calculation results. The results indicated that studying the constitutive relationship of mortar in contact with soil during continuous firing using this method can improve the accuracy of dynamically modeling mortar systems. Moreover, this study has practical value in the engineering design of mortar systems.

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Section: Introductionmentioning

confidence: 99%

Constitutive Relationship of Soil in Contact with Mortar under Continuous Loading

Wang,

2024

Preprint

View full text Add to dashboard Cite

show abstract

Numerical simulation of frozen soil under uniaxial and coupled dynamic-static impact loads

Cited by 1 publication

References 25 publications

Constitutive Relationship of Soil in Contact with Mortar under Continuous Loading

Constitutive Relationship of Soil in Contact with Mortar under Continuous Loading

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