Results 31 to 40 of about 104,652 (265)

The impact of water content and ionic diffusion on the uniaxial compressive strength of shale

Egyptian Journal of Petroleum, 2013
Experimental data showed that water content has a profound influence on the uniaxial compressive strength of shale. Testing has shown a great decrease in the uniaxial compressive strength as the water content increases.
Talal AL-Bazali
doaj   +1 more source

The Effect of Capping Condition on the Compressive Strength of Concrete Hollow Blocks [PDF]

مجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2003
One of the quality control tests done on the concrete hollow blocks is the compressive strength. In order to simulate in situ strength of the concrete blocks, capping technique was used in order to achieve smooth perpendicular surface for compressive ...
Osama A. Abaza, Ameed Abu Salameh
doaj   +1 more source

A New Insight into the Design Compressive Strength of Ultra-High Performance Concrete

Buildings, 2023
Compressive strength is one of the most critical mechanical properties of various types of concrete and is the main input variable for structural concrete design.
Masoud Pourbaba, Rajesh Chakraborty, Majid Pourbaba, Abdeldjelil Belarbi, Jung Heum Yeon   +4 more
doaj   +1 more source

Lightweight cementitious composites containing cenospheres and polypropylene fibres after exposure to high temperatures [PDF]

MATEC Web of Conferences, 2020
The paper presents the results of experimental investigation of lightweight cementitious composites with cenospheres (LCCC) exposed to high temperatures. We showed the positive effect of cenospheres on post- fire residual compressive strength in previous
Szymkuć Wojciech, Tokłowicz Piotr
doaj   +1 more source

Effect of work-hardening on the relationship between compressive strength and hardness of quenched medium carbon steel

Nihon Kikai Gakkai ronbunshu
Since it is known that tensile strength and hardness are roughly proportional, a hardness test is often used as a simple and substitute test. However, it has been reported that the proportional relationship between tensile strength and hardness is broken
Yuta MIZUNO, Masayoshi KUMAGAI, Akihiro TANABE, Junzo SHIMBE   +3 more
doaj   +1 more source

Unsupervised Machine Learning Identifies Shared Biomechanical and Clinical Variation in Individuals with Knee Osteoarthritis and High BMI: A Secondary Analysis of the IDEA Trial

Arthritis Care &Research, Accepted Article.
Objective High body mass index (BMI≥27 kg/m2) and aberrant gait biomechanics are primary risk factors for knee osteoarthritis (KOA), yet the specific loading patterns linked to clinical disease features remain unclear. Unsupervised machine learning (ML) was used to identify vertical ground reaction force (vGRF) waveform modes of variation and ...
Ashley N. Buck, J. Elyse Borgert, Hyeon Lee, Liubov Arbeeva, Yvonne M. Golightly, Richard F. Loeser, Leigh F. Callahan, Stephen P. Messier, Brian Pietrosimone, Amanda E. Nelson, James S. Marron   +10 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Machine learning based strength prediction method for cement-based grouting material [PDF]

Journal of Hebei University of Science and Technology
In order to accurately predict the compressive strength of cement-based grouting material by small diameter core sample method, the compressive strength tests of cement-based grouting material standard size test blocks and small diameter core samples ...
Qilian LI, Jiayao CHEN, Yanru DUN, Xianfeng CAO, Yi LIU   +4 more
doaj   +1 more source

Compressive strength of delaminated aerospace composites [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
Abstract An efficient analytical model is described which predicts the value of compressive strain below which buckle-driven propagation of delaminations in aerospace composites will not occur. An extension of this efficient strip model which accounts for propagation transverse to the direction of applied compression is derived.
Butler, Richard, Rhead, Andrew T, Liu, Wenli, Kontis, Nikolaos   +3 more
openaire   +3 more sources

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source