Article: Fracture constitutive study of spring-beam model applied to slurry anchor connection Journal: International Journal of Wireless and Mobile Computing (IJWMC) 2024 Vol.26 No.2 pp.107 - 114 Abstract: In order to prove the feasibility of selecting the beam element attributes of the spring-beam model by parameter prediction algorithm, this study proposes a beam elements fracture constitutive model that simulates the fracture of mortar and concrete at the slurry anchor connection. By adjusting the elastic modulus, plastic strain, fracture modulus and section properties of beam elements, the results of literature tests are compared with the finite element calculation and the effects of key parameters in the beam elements fracture constitutive calculation model are analysed. The results show that the calculated slip deformation of the slurry anchor connection is controlled by the plastic strain and fracture modulus of beam elements. The mortar entry to the plasticity calculation stage is controlled by section properties of beam elements. The overall deviation of calculation from experimental results is controlled by the elasticity modulus of beam elements, and the parameter optimal solution has uniqueness. Inderscience Publishers - linking academia, business and industry through research

Title: Fracture constitutive study of spring-beam model applied to slurry anchor connection

Authors: Wenjun Zhou; Shipian Shao; Hongxin Nie; Li Ma

Addresses: School of Civil Engineering, Jilin University of Architecture and Technology, Changchun, Jilin, China ' School of Management, Shenyang Jianzhu University, Shenyang, Liaoning, China ' School of Civil Engineering, Jilin University of Architecture and Technology, Changchun, Jilin, China ' China State Construction Railway Investment & Engineering Group Co., Ltd., Changchun, Jilin, China

Abstract: In order to prove the feasibility of selecting the beam element attributes of the spring-beam model by parameter prediction algorithm, this study proposes a beam elements fracture constitutive model that simulates the fracture of mortar and concrete at the slurry anchor connection. By adjusting the elastic modulus, plastic strain, fracture modulus and section properties of beam elements, the results of literature tests are compared with the finite element calculation and the effects of key parameters in the beam elements fracture constitutive calculation model are analysed. The results show that the calculated slip deformation of the slurry anchor connection is controlled by the plastic strain and fracture modulus of beam elements. The mortar entry to the plasticity calculation stage is controlled by section properties of beam elements. The overall deviation of calculation from experimental results is controlled by the elasticity modulus of beam elements, and the parameter optimal solution has uniqueness.

Keywords: spring-beam; fracture of beam element; slurry anchor; mortar; concrete.

DOI: 10.1504/IJWMC.2024.137180

International Journal of Wireless and Mobile Computing, 2024 Vol.26 No.2, pp.107 - 114

Received: 29 Oct 2023
Accepted: 19 Dec 2023
Published online: 04 Mar 2024 *

Title: Fracture constitutive study of spring-beam model applied to slurry anchor connection

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