Results 81 to 90 of about 49,898 (286)

Effect of coarse aggregates and hybrid fibers on mechanical properties of ultra high performance concrete

工程科学学报
The development direction of ultra high performance concrete (UHPC) is shifting toward realizing a balance between its comprehensive properties, such as low cost, high mechanical performance, and environmental friendliness, in a bid to facilitate its ...
Chen BIAN, Changjun ZHAO, Weijun HUANG, Junyuan GUO, Jianzhuang XIAO, Jianlong YE   +5 more
doaj   +1 more source

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

Advanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

Experimental evaluation of tensile strength test methods for steel fibre-reinforced concrete [PDF]

, 2019
This study presents an experimental evaluation of three different methods for determining the tensile strength of steel fibre reinforced concrete (SFRC).
Md Neaz Sheikh (19585306), Hussam A GOAIZ (20219967), Tao Yu (19586875), Nabeel Farhan (20116503), Muhammad Hadi (19585066)   +4 more
core  

Effect of Steel Fiber on First-Cracking Behavior of Ultra-High-Performance Concrete: New Insights from Digital Image Correlation Analysis

Buildings
The first-cracking behavior of ultra-high-performance concrete (UHPC) is critical for the functionality and durability of its structures. However, determining the first-cracking strength by the linear limit point is challenging due to the nonlinear ...
Xing Lu, Lei Tu, Chengjun Tan, Hua Zhao
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Numerical and experimental study of the optimal specimen geometry for direct tension strength tests in high tensile strength fiber reinforced concrete

Scientific Reports
The accurate determination of the tensile strength of concrete is a topic of growing interest, especially driven by the new ultra-high tensile strength fiber-reinforced concretes.
Miguel A. Vicente, Álvaro Mena-Alonso, Dorys C. González, Gonzalo Ruiz, Héctor Cifuentes, Carlos Leiva, Rena Yu, Jesús Mínguez   +7 more
doaj   +1 more source

Damage Evolution Characteristics of Rock Salt under Different Stress Conditions

Advances in Civil Engineering, 2019
Understanding the damage evolution characteristics of rock material is essential to the long-term stability and safety analysis of the underground facility.
Chunping Wang, Jianfeng Liu, Lu Wang
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Tensile Behavior of UHPFRC Under Uniaxial And Biaxial Conditions [PDF]

The representative characterization of the tensile behavior of strain hardening Ultra High Performance Fiber Reinforced Cementitious Composite (UHPFRC) remains a challenge.
Brühwiler, Eugen, Shen, Xiujiang
core  

Shape factor of irregular internal cracks in rock-like materials

Yantu gongcheng xuebao, 2018
The initiation, propagation and coalescence of internal cracks will lead to the failure of rock mass. To study the fracture characteristics of the internal cracks in brittle rock mass, the validity and reliability of a cylinder FEM numerical model ...
DAI Feng , ZHU Wan-cheng , LI Shao-hua , YU Yong-jun
doaj   +1 more source