Results 61 to 70 of about 2,263 (190)

Deformation characteristics of coarse granular materials in large-scale true triaxial tests

Yantu gongcheng xuebao, 2019
The deformation behaviors of coarse granular materials under three-dimensional stress state are crucial to the settlement of earth-rockfill dams. A series of tests under constant minor principle stress and constant coefficient of intermediate principle ...
ZUO Yong-zhen 1, JIANG Jing-shan 2, 1, PAN Jia-jun 1, ZHAO Na 1, ZHOU Yue-feng 1
doaj   +1 more source

The Material Basis of 18th‐Century Meissen Porcelain

Archaeometry, EarlyView.
ABSTRACT In the summer of 1708, the quest for making hard‐paste porcelain from Saxonian clay and other mineral resources succeeded. This was achieved by applying as its essential ingredient newly discovered pure kaolin from Heidelsberg near Aue, western Saxon Ore Mountains.
Robert B. Heimann
wiley   +1 more source

Comparison of Mesoscale Crack Advance and Process Zone Element Approaches for Simulating Ductile Crack Trajectories in Steel

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Rigorous application of continuum damage mechanics (CDM) models coupled with crack propagation schemes can predict crack branching or zigzag trajectories near the crack tip, even when the macroscopic crack growth is straight. This arises from oscillations in the local damage field and is consistent with experimental observations of ductile ...
Andrew Ziccarelli, Amit Kanvinde, Gregory Deierlein   +2 more
wiley   +1 more source

Improvement and strength testing of true tri-axial apparatus with one chamber and four cells and rigid-flexible-flexible loading boundary mechanism—True triaxial apparatus developed in Xi'an University of Technology

Yantu gongcheng xuebao, 2017
The true triaxial apparatus is an important instrument, which is usually emplyed to investigate the mechanical characteristics of soils under complicated stress conditions.
SHAO Sheng-jun 1, 2, XU Ping 2, 3, SHAO Shuai 1, CHEN Fei 1
doaj   +1 more source

The Long Shadow of Karl Weierstraß Over the Calculus of Variations

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT At first glance, it appears that the contents of Karl Weierstraß's (1815–1897) lecture courses on the calculus of variations were made available to the public only in the seventh volume of his Mathematische Werke, and thus not until 30 years after his death.
Peter Ullrich
wiley   +1 more source

Deformation, fracture characteristics and damage constitutive model of soft coal under true triaxial complex stress paths.

PLoS ONE
Understanding the mechanical properties and damage deterioration mechanisms of soft coal under true triaxial complex stress paths is crucial for predicting and evaluating the stability of the roof during roadway excavation in thick soft coal seams.
Chongyang Jiang, Lianguo Wang, Jiaxing Guo, Shuai Wang   +3 more
doaj   +1 more source

Energy Evolution and Fractal Characteristics of Sandstones Under True Triaxial Cyclic Loading and Unloading

Fractal and Fractional
To study the fractal characteristics and energy evolution of sandstones under true three-dimensional stress states, a true triaxial compression test and a cyclic loading and unloading test of sandstone specimens under different loads were carried out ...
Qihang Zhang, Xiangrui Meng, Guangming Zhao   +2 more
doaj   +1 more source

A discrete approach for modelling the permeability evolution of granite under triaxial and true-triaxial stress conditions

IOP Conference Series: Earth and Environmental Science
Abstract In deep underground engineering, modelling the seepage characteristics of rock masses under complex stress conditions is crucial for the safe construction and stable operation of a project. The permeability of the rock mass is not only controlled by its internal pore structure but is also closely related to the deformation and ...
Chen He, Chi Yao, Yulong Shao, Qinghui Jiang, Chuangbing Zhou   +4 more
openaire   +1 more source

A Data‐Driven Review of Geoscience Research Evolution Using SciBERT‐Based Topic and Network Analysis

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This review synthesises the evolution of global geoscience research from 2004 to 2023 using large‐scale bibliometric evidence. By combining keyword co‐occurrence network analysis with SciBERT‐based topic modelling, it identifies major paradigm transitions from geology‐centred research to climate‐focused studies and recent data‐ and AI‐driven ...
Sooyeon Han, Ju‐seop Kim
wiley   +1 more source

Exponential true triaxial strength criteria for rock

Yantu gongcheng xuebao, 2018
The rock strength is the premise and foundation for stability evaluation of rock engineering and optimization design of structures. Based on the true triaxial test results, the evolution of rock strength are analyzed: (1) The rock strength increases with
ZHANG Qiang , LI Cheng , GUO Qiang , MIN Ming , JIANG Bin-song , WANG Yan-ning
doaj   +1 more source