Related Experiment Video
Updated: Apr 6, 2026
11:29
Novel 3D/VR Interactive Environment for MD Simulations, Visualization and Analysis
Published on: December 18, 2014
11.8K
Research on damage characterization of SCC and rock composite specimens based on CPU and GPU heterogeneous code
Guoji Wang1, Lei Yu1, Tao Yang2
1College of Civil Engineering, Guizhou University, Guiyang, 550025, China.
Scientific Reports
|March 4, 2025
Summary
The study investigates self-compacting concrete (SCC) and rock interfaces in rock-filled concrete (RFC). Interface angle affects RFC strength and failure, with findings aiding engineering design.
Area of Science:
- Civil Engineering
- Materials Science
- Geotechnical Engineering
Background:
- The interface between self-compacting concrete (SCC) and rock significantly influences the mechanical behavior of rock-filled concrete (RFC).
- Understanding these interface effects is crucial for the structural integrity and performance of RFC applications.
Purpose of the Study:
- To investigate the strength, failure characteristics, and damage mechanisms of SCC-rock composite specimens under uniaxial compression.
- To analyze the influence of varying interface inclination angles on the mechanical properties of RFC.
Main Methods:
- Physical tests and numerical simulations were employed to study SCC-rock composite specimens.
- A 3D finite element solver utilizing CPU-GPU heterogeneous computing and Realistic Failure Process Analysis (RFPA) theory was developed and used for simulations.
Main Results:
- Compressive strength, peak strain, and accumulated acoustic emission (AE) energy initially decreased then increased with rising interface inclination angle.
- Distinct failure characteristics were observed for composites at different interface angles.
- Numerical simulations successfully reproduced the progressive failure process and mechanical behavior.
Conclusions:
- The interface inclination angle critically impacts the mechanical properties and failure modes of SCC-rock composites.
- The developed GPU-accelerated solver and RFPA theory provide an efficient and accurate method for simulating complex composite behaviors.
- Findings offer valuable insights for the design and research of rock-filled concrete structures.
Keywords:
CPU-GPU heterogeneous computingCompressive strengthDamage mechanismInterface inclination angleRock-filled concreteMore Related Videos
Related Concept Videos
01:15Stress: General Loading Conditions
687
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
687
01:24Stress-Strain Diagram - Ductile Materials
2.6K
The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
2.6K
01:21Fatigue
1.1K
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
1.1K
01:24Stress Concentrations
833
Stress concentration is when stress intensifies near discontinuities such as holes or abrupt cross-sectional changes in a structural member. This localized stress can often surpass the average stress within the member. The stress distribution in flat bars, either with a circular hole or varying widths connected by fillets, can be determined experimentally using a photoelastic method. The results are based on ratios of geometric parameters like the ratio of the hole's radius to the smaller...
833
01:23Stresses under Combined Loadings
547
When analyzing a bent tube with a circular cross-section subjected to multiple forces, it is crucial to determine the stress distribution in order to maintain structural integrity under varied load conditions.
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...
547
01:20Microcracking in Concrete
567
Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...
567