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Sep 2026
A Morphology-Based Analysis of Crack Initiation, Propagation and Arrest Behaviors in Pre-Defected CO2 Pipelines
Crack initiation, propagation and arrest in high-pressure CO2 pipelines are strongly affected by decompression behavior, defect geometry and material resistance. In this study, nine DN100-scale CO2 pipe burst tests with prefabricated axial defects were analyzed from a morphology-based perspective. Instead of evaluating...
Le Shi, Xiao-Lin Wang, Yu-Xin Wang et al.
· Processes · 0 citations
Open access
Aug 2026
Investigation of Compressive–Shear Fracture in Rock Considering Flaw Distribution and Interaction via an Improved Energy-Stress-Based Peridynamics Model
Predicting compressive–shear fracture in rock masses containing complex flaw distributions remains a major challenge in rock engineering. We propose an improved non-ordinary state-based peridynamics (NOSB-PD) model to simulate rock fracture behavior in this work. A stabilized NOSB-PD formulation is developed by incorpo...
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· Mathematics · 1 citation
Open access
Sep 2026
Crack growth and fracture characteristics of riveted dissimilar aluminum joints under mode I loading
Crack initiation and propagation in aerospace structures can compromise structural integrity and service safety, making fracture assessment an important aspect of joint design. Riveted aluminum joints are widely used in engineering structures; therefore, understanding their crack-growth behavior under different loading...
Mohammad Reza Khoshravan Azar, Amir Javadzadeh Khoei, M. Dadashzadeh
· Journal of Materials Science · 0 citations
Conference
Open access
Sep 2026
Investigation of degradation characteristics of sandstone under cyclic loading based on crack initiation and damage stress thresholds
While conventional cyclic loading schemes typically rely on arbitrary fractions of peak strength, this study establishes loading bounds based on the crack-initiation (σci) and damage (σcd) stress thresholds. This physically based approach restricts the applied stress to the critical interval for stable micro-crack prop...
Sheng-Xiao Yuan, Qiang Wang, Guang-Dong Zhou et al.
· Journal of Physics, Conferen... · 0 citations
Open access
Sep 2026
Influence of fissure angle and loading rate on sandstone failure mechanisms: implications for underground engineering stability
This study investigated the influence of fissure angle and loading rate on the stability of flawed rock masses. Uniaxial compression tests were conducted on sandstone specimens containing a single hole and double fissures, monitored simultaneously by acoustic emission (AE) and digital image correlation (DIC). The cou...
Wen-Pu Li, Xin-Yu Zhang, Tao Zhao et al.
· Geomechanics and Geophysics... · 0 citations
Open access
Sep 2026
Mixed Mode Fracture Mechanics and Crack Growth Analysis in Steam Turbine Discs for Remaining Life Assessment under Thermal Stresses and Mechanical Loading
The long‑term performance and structural integrity of steam‑turbine discs are strongly influenced by crack‑growth behavior under combined thermal stresses and mechanical loading. In this study, a comprehensive analytical framework based on finite element analysis (FEA), mixed‑mode fracture‑mechanics evaluation (Modes I...
Mohammad Farahi, Arina Agharafiee, A. Ebrahimi et al.
· Journal of Modern Mechanical... · 0 citations