Results 21 to 30 of about 20,914 (274)

Low velocity impact modelling in laminate composite panels with discrete interface elements [PDF]

, 2009
A model enabling the detection of damages developing during a low velocity/low energy impact test on laminate composite panels has been elaborated. The ply model is composed of interface type elements to describe matrix cracks and volumic finite elements.
Barrau, Jean-Jacques, Bouvet, Christophe, Bizeul, Matthieu, Jean-Jacques Barrau, Castanié, Bruno, Christophe Bouvet, Matthieu Bizeul, Bruno Castanié   +7 more
core   +1 more source

A Novel Method to Describe Large-Range Stress-Strain Relations of Elastic-Plastic Materials Based on Energy Equivalence Principle

, 2023
Due to the unique structure of tensile sheet specimens with a circular hole (CHS specimen), a novel method is proposed to predict the large-range uniaxial stress-strain relations of elastic-plastic materials analytically.
Lixun Cai, Simiao Yu, Ling Wang, Lin Lang   +3 more
core   +1 more source

Pavement structure mechanics response of flexible on semi-flexible overlay that based on the old cement concrete pavement damage

MATEC Web of Conferences, 2015
The old cement pavement damage status directly affect the design of the paving renovation. Based on the state of the old road investigation, combined with the research data at home and abroad, use the control index that average deflection, deflection ...
Jiang Ruinan, Zhu Baolin, Tian Miaomiao, Cao Yanhua   +3 more
doaj   +1 more source

Local Stress Behavior of Post-Tensioned Prestressed Anchorage Zones in Continuous Rigid Frame Arch Railway Bridge

Applied Sciences, 2018
The concrete stress behavior and cause of cracking at the anchorage zones of top and bottom slabs of a post-tensioned prestressed concrete box beam were studied.
Weizhong Mao, Hongye Gou, Yannian He, Qianhui Pu   +3 more
doaj   +1 more source

EXPERIMENTAL SETUP FOR MODELING AND STUDY OF COMPLEX STRESS STATE IN FERROMAGNETIC MATERIALS

Приборы и методы измерений, 2016
Most of the load experiencing parts operate in a complex state of stress (СSS). The article describes the device layout diagram for modeling a СSS in a ferromagnetic material and the development of monitoring methods.
V. N. Busko, G. G. Vlasov
doaj   +1 more source

Tension and compression effect on mechanical properties of Fe and B2

Materials Research Express, 2020
The elastic constants, ideal strength, band structure and electronic density state of Fe and B2 under tension and compression were studied by using the first principle.
Gang Huang, Qingdong Zhang, Shuo Li
doaj   +1 more source

Mechanism of roof presplitting in nonpillar coal mining technology and its reasonable parameters in hard roof and longwall top-coal caving face

Energy Exploration & Exploitation, 2023
This article presents an integrated approach for theoretical analysis and numerical modeling to investigate the mechanism of roof presplitting and its reasonable parameters in the hard roof and longwall top-coal caving face.
Haosen Wang, Jiong Wang, Manchao He, Xichun Tian, Zimin Ma, Peng Liu   +5 more
doaj   +1 more source

Mechanical Properties of DO3 Based on First Principles

Crystals, 2020
The elastic constants, ideal strength, band structure and electronic density state of Fe3Si (DO3) under triaxial tension and triaxial compression were studied using the first principle. The structural parameters calculated at zero pressure are consistent
Qingdong Zhang, Gang Huang, Shuo Li
doaj   +1 more source

Identification of viscoplastic parameters and characterization of Lüders behaviour using digital image correlation and the virtual fields method

, 2008
In this study, tensile loading experiments are performed on notched steel bars at an average applied strain rate of 1s-1. Displacement fields are measured across the specimen by coupling digital image correlation (DIC) with imaging using high speed CCD ...
Yan, Junhui, Sutton, Michael,, Sutton, Michael, A., Avril, Stéphane, Sutton, Michael A., Pierron, Fabrice   +5 more
core   +1 more source

Effects of temporal salt accumulation during accelerated drying-wetting cycles on physical properties of cement mortars and determining of ocean salt crystallization pressure stress

Next Materials
Elucidating the degradation mechanism of inorganic materials in special service environments such as ocean environment has important scientific and engineering significance.
Jinbo Yang, Ze Zhang, Yu Zhang
doaj   +1 more source