Bin Gao¹, Xinyu Jiang¹, Lusheng Wang^1,*, Jun Ding¹, Yanhong Peng¹, Xin Yang², Hongzhou Yan³, Shaojie Gu^4,5,*

CMC-Computers, Materials & Continua, Vol.87, No.3, 2026, DOI:10.32604/cmc.2026.077091 - 09 April 2026

Abstract This paper provides a comprehensive review of recent advances in multi-scale modeling for simulating dynamic damage and fracture in metallic materials, a critical area due to the widespread application of metals and their susceptibility to complex failure in engineering practice. The paper first outlines the mechanisms of damage evolution and crack propagation across different spatial and temporal scales. It then introduces commonly used simulation approaches spanning micro- to macro-scales for studying damage and fracture in metals, analyzing the evolution of mechanical properties from defect initiation to ultimate failure, and elucidating the underlying damage mechanisms at More >

Yiyan Chen^1,2, Yihu Chen^1,2,*, Min Zhang³, Xiaogang Ye⁴, Jindan Zhang^1,2

Structural Durability & Health Monitoring, Vol.20, No.2, 2026, DOI:10.32604/sdhm.2025.073581 - 31 March 2026

Abstract The large thickness of the common composite precast base slab leads to difficulties in construction through reinforcement installation and pipeline laying. To solve this problem, this paper proposes a lightweight ribbed base slab, reducing the base slab thickness to 30 mm compared to the ordinary precast base slab, adding concrete ribs to improve the mechanical properties of the base slab, and analyzing its damage pattern, stiffness change, and deflection deformation through static loading experiments. Based on the experimental conditions, the effect of concrete rib height, rib width, and top chord reinforcement diameter on the short-term… More >

Yi Yang^1,2,3, Xiaohui Zhang^1,2,3,*, Minghao Xu^1,2,3, Yutang Zhao⁴, Hua Wang^1,2,3

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.3, 2026, DOI:10.32604/fdmp.2026.076426 - 31 March 2026

Abstract To overcome the limited mixing efficiency associated with conventional steady-state side blowing in molten pool smelting, this study proposes a gas injection strategy that combines a swirl lance configuration with sinusoidal pulsed blowing. Using a volume-of-fluid (VOF) multiphase flow framework coupled with the Realizable k–ε turbulence model, the performance of constant-velocity blowing is systematically compared with sinusoidal pulsed blowing over a range of amplitudes (5, 10, and 15 m/s) and frequencies (0.5, 1, and 2 Hz). The results demonstrate that sinusoidal pulsed blowing markedly enhances gas–liquid mixing within the melt pool relative to constant-speed injection. More > Graphic Abstract

Yuxin Tian¹, Wangxin Yu¹, Wanqing Yuan¹, Qingquan Liu^1,*, Xiaoliang Wang^1,2,3,*

CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.3, 2026, DOI:10.32604/cmes.2026.078776 - 30 March 2026

Abstract Granular flow, such as hopper discharge and debris flows, involves complex multi-scale, multi-phase, and multi-physics coupling, posing significant challenges for numerical simulation. Over the past two decades, methods like the Discrete Element Method (DEM), Smoothed Particle Hydrodynamics (SPH), and Depth-Averaging Method (DAM), have been developed to address these problems. However, their applicability across different scales remains unclear due to differences in physical assumptions and numerical algorithms. Therefore, a comprehensive evaluation is critically needed. This study selects three typical methods (DEM, SPH, and DAM) to examine their convergence behavior, boundary condition implementation, and limitations in physical More >

Kai Rong^*, Zong-Xian Zhang, Li-Yuan Chi

CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.3, 2026, DOI:10.32604/cmes.2026.078415 - 30 March 2026

Abstract Burden is one of the main parameters in blast design. However, field tests, either single- or multi-hole blasts, used to determine an appropriate burden, are difficult to capture crack propagation, evolution of breakage angle, and the mechanism governing these processes in the rock. In this study, a single-hole bench blasting model is developed using LS-DYNA software to comprehensively investigate the relationship between burden and rock breakage. The simulation results show that the breakage angle decreases with the increase in burden, and the blasted volume reaches a peak value with a burden of 4 m. Meanwhile,… More >

Milan Sága, Ján Minárik^*, Milan Vaško, Jaroslav Majko

CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.3, 2026, DOI:10.32604/cmes.2026.076734 - 30 March 2026

Abstract The presented study analyses the impact of hysteresis on the response of mechanical systems. The main objective is to determine how the hysteretic models influence the system behaviour and if they can be utilised to describe a damaged or a faulty system. The hysteretic models are able to describe various types of nonlinear behaviour that can reflect the wear or damage of the system components. The data obtained from these models can possibly serve as a basis for the advanced approaches, such as digital twin modelling and predictive maintenance. All the results presented in this… More >

Oksana Ivanova^*, Roman Cherepanov, Sergey Zelepugin

CMC-Computers, Materials & Continua, Vol.87, No.2, 2026, DOI:10.32604/cmc.2026.075451 - 12 March 2026

Abstract This study presents an investigation into shock-induced exothermic reactions within three distinct aluminum-based energetic mixtures: aluminum/sulfur (Al/S), aluminum/copper oxide (Al/CuO), and aluminum/polytetrafluoroethylene (Al/PTFE). A challenge in current modeling efforts is accurately capturing the complex physical and chemical coupling under extreme loading, especially the influence of rapidly forming gaseous products in Al/PTFE mixtures on material integrity. To address this, a wide-range numerical model based on the Smoothed Particle Hydrodynamics (SPH) method was developed. This mesh-free approach manages large deformations and incorporates elastic-plastic flow, heat transfer, component diffusion, and chemical kinetics simulated using both zero- and first-order… More >

Yonghong Deng^1,2, Ming Yang², Liqiong Chen¹, Hongwei Rao¹, Shengguang Li², Changhui Zhou², Yangyang Huang², Zizheng Kong², Xicheng Gao², Chong Di², Ting He^1,*

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.077227 - 04 March 2026

Abstract With the maturation of coalbed methane (CBM) exploitation and the transition into the late stages of dewatering and gas production, liquid loading in gathering pipelines has emerged as a major constraint on productivity and operational stability. Based on real-time field data and gas–liquid physicochemical analyses, this study elucidates the mechanisms governing liquid loading formation under varying temperature, pressure, and water saturation conditions. An HYSYS model is employed to determine the water dew point, while the Turner model is used to evaluate the critical conditions for liquid holdup. The results indicate that gas water saturation exerts… More >

Hongyun Bai^1,2, Jianxin Xu^1,2,*, Wenbo Shi^1,2, Xiaowei Ma³, Jun Ma³, Shaoyin Zhu³, Hua Wang^1,2

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.076265 - 04 March 2026

Abstract Optimizing pyrolysis processes is critical for improving the efficiency of pyrolysis furnaces. This study presents a strategy to enhance heat transfer through agitation, employing Fluent for detailed numerical simulation of the thermal behavior. The simulation results show strong agreement with experimental measurements of localized fluid temperature rise. Forced convection induced by impeller rotation significantly improves heat transfer between the fluid and the furnace walls, effectively reducing thermal stratification. At an impeller speed of 240 RPM, the axial temperature difference decreases from 200 K to 50 K compared with stationary conditions, while the average heat transfer More >

Chaoyu Wei¹, Haipeng Zhang¹, Weidong Shi^1,*, Yongfei Yang^1,*, Linwei Tan¹, Xianglong Wu², Yurui Dai¹

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.074543 - 04 March 2026

Abstract During high-speed operation, mixed-flow pumps are susceptible to cavitation, which destabilizes the internal flow, increases energy losses, and degrades hydraulic efficiency. To assess the effectiveness of blade perforation as a cavitation-mitigation strategy, in this study several mixed-flow pump models incorporating perforations were developed. Numerical simulations were performed for configurations with circular holes positioned at different locations along the blade leading edge, and the computational results were validated against experimental measurements. The findings indicate that the location of the perforations plays a decisive role in cavitation suppression. Moving from the blade rim toward the hub along More >