Engineering Computations: Volume 40 Issue 6

Reconstruction of granite microstructure model using simulated annealing method and Voronoi tessellation

Bin Chen, Yuan Wang, Shaoqing Cui, Jiansheng Xiang, John-Paul Latham, Jinlong Fu

Accurate presentation of the rock microstructure is critical to the grain-scale analysis of rock deformation and failure in numerical modelling. 3D granite microstructure…

Steel plate surface defect classification technology based on image enhancement and combination feature extraction

Luya Yang, Xinbo Huang, Yucheng Ren, Qi Han, Yanchen Huang

In the process of continuous casting and rolling of steel plate, due to the influence of rolling equipment and process, there are scratches, inclusions, patches, scabs and pitted…

Unified solution of some problems of rectangular plates with four free edges based on symplectic superposition method

Xin Su, Eburilitu Bai, Guojun Hai

A unified framework for solving the bending, buckling and vibration problems of rectangular thin plates (RTPs) with four free edges (FFFF), including isotropic RTPs, orthotropic…

A generalized CAS wavelet method for solving ψ-Caputo fractional differential equations

Umer Saeed

The purpose of the present work is to introduce a wavelet method for the solution of linear and nonlinear psi-Caputo fractional initial and boundary value problem.

Numerical analysis of unstable propagation of three-dimensional parallel hydraulic fractures induced by interferences of adjacent perforation clusters and thermal diffusion

Yongliang Wang

The purpose of this study is to investigate the unstable propagation of parallel hydraulic fractures induced by interferences of adjacent perforation clusters and thermal…

Correlation of microscopic and macroscopic characteristics of granular materials based on a rolling resistance linear model

Yiwei Wang, Run Liu, Ruohan Sun, Zewei Xu

The paper aims to find the correlation between the microparameters and the macroparameters of the soil. The study aims to calibrate the macroscale and microscale parameters of…

Numerical simulation study on erosion collapse failure mechanism of cemented conglomerate accumulation

Chengfu Hu, Chong Shi, Yiping Zhang, Xiao Chen, Sha Luo

Cemented conglomerate accumulation is a weak and heterogeneous medium that occurs in western China. It consists mainly of argillaceous cement that loses strength rapidly upon…

Stress analysis of aluminium die-cast parts including the STL-data of pores

Ulrich Gabbert, Stefan Ringwelski, Mathias Würkner, Mario Kittsteiner

Pores and shrink holes are unavoidable defects in the die-casting mass production process which may significantly influence the strength, fatigue and fracture behaviour as well as…

A fully coupled THMC model for simulating hydrate dissociation by using finite element method

Li Zhang, Bisheng Wu, Haitao Zhang

Natural gas hydrate (NGH) has been regarded as one of the most important resources due to NGH's large amounts of reserve. However, NGH development still faces many technical…

Nonlinear dynamic analysis of soil-pile interactions of nuclear power plants with nonlithological foundation

Yi Sui, Yi Wang, Xiang Yu

The dynamic response of the nuclear power plants (NPPs) with pile foundation reinforcement have not yet been systemically investigated in detail. Thus, there is an urgent need to…

Dynamic characteristics and structural stability analysis of a large annular tensegrity structure with radial ribs

Hongyue Zhao, Chuang Shi, Hongwei Guo, Rongqiang Liu

In order to make the aperture of spatial deployable antenna larger, this paper proposed the study on a spatial annular tensegrity structure with 100 m large scale, which could be…

Modeling fracture in brittle materials by higher-order phase field method using C1 non-Sibsonian interpolants

Aurojyoti Prusty, Amirtham Rajagopal

This study implements the fourth-order phase field method (PFM) for modeling fracture in brittle materials. The weak form of the fourth-order PFM requires C¹ basis functions for…