Results 21 to 30 of about 807,773 (347)

State-dependent non-orthogonal elastoplastic constitutive model for sand

Yantu gongcheng xuebao, 2023
The mechanic characteristics of sand have obvious features of state dependence, which is mainly reflected by the fact that the deformation characteristics of sand in different stress and density states significantly differ. The reasonable description for
LU Dechun 1, JIN Chenyi 1, LIANG Jingyu 2, LI Zehua 1, DU Xiuli 1
doaj   +1 more source

Loading rate dependence of permeability evolution in porous aeolian sandstones [PDF]

, 2004
Mechanical properties of rocks are characterized by their notable dependence on the applied deformation rate. However, little is known about the strain rate dependence of fluid flow properties since most laboratory tests are conducted using a single ...
Ira O. Ojala, Ian G. Main, Main, Ian G, Bryne T. Ngwenya, Ojala, Ira O, Ojala, I. O., Ngwenya, B. T., Main, I. G.; id_orcid, Ngwenya, Bryne T   +8 more
core   +1 more source

A unified fracture criterion considering stress state dependent transition of failure mechanisms in bcc steels at –196 °C

International journal of plasticity, 2022
The fracture properties of a high-strength steel with a body-centered cubic (bcc) crystal structure have been characterized at – 196 ◦ C by performing tensile tests with different specimen geometries, three-point bending tests using Charpy specimens, and
Fuhui Shen, S. Münstermann, J. Lian
semanticscholar   +1 more source

Fractional stress-dilatancy equation based on critical state lines with arbitrary form

Comptes Rendus. Mécanique, 2021
The original state-dependent fractional stress-dilatancy (FSD) equation for soils is developed based on the critical state lines (CSLs) with linear form.
Sun, Yifei, Zhang, Jiancheng
doaj   +1 more source

Simple evaluation method of adhesive failure criterion in multiaxial stress states by uniaxial tensile tests

Mechanical Engineering Journal, 2018
We propose a simple tensile test with which to identify the parameters that constitute the failure criterion of an adhesive in a multiaxial stress state. In this paper, we define the failure criterion as the proportional limit of load-displacement curves
Masato IIMORI, Hiro TANAKA, Mayuko KIMURA, Yoji SHIBUTANI, Yang LIU   +4 more
doaj   +1 more source

Defect-dependent Elasticity: Nanoindentation as a Probe of Stress State [PDF]

Journal of Materials Research, 2000
Using an interfacial force microscope, the measured elastic response of 100-nm-thick Au films was found to be strongly correlated with the films' stress state and thermal history. Large, reversible variations (2×) of indentation modulus were recorded as a function of applied stress.
Jarausch, K. F., Kiely, J. D., Houston, Jack E., Russell, P. E.   +3 more
openaire   +1 more source

EM Algorithm and Positive Quadrant Dependence in the context of Multi-State Stress-Strength Model [PDF]

Journal of Statistical Theory and Applications (JSTA), 2016
This research article is related to a multi-state stress-strength model proposed by Eryilmaz and İşçioğlu (2011). It deals with (i) demonstration of the use of EM algorithm for the estimation of parameters of distributions of random variables ...
Sanjeev Sabnis, Mayank Jain, Kartik Verma   +2 more
doaj   +1 more source

State-Dependent Effects of β-Endorphin on Core Temperature in Stressed and Non-Stressed Rats

Japanese Journal of Pharmacology, 1985
beta-Endorphin, gamma-endorphin, delta-endorphin and morphine injected i.c.v. caused hyperthermia in non-stressed rats; however, the same dose of beta-endorphin and morphine caused hypothermia in stressed animals. These effects of beta-endorphin were antagonized by naloxone.
TANAKA, Masatoshi, TSUDA, Akira, IDA, Yoshishige, USHIJIMA, Itsuko, TSUJIMARU, Shusaku, NAGASAKI, Nobuyuki   +5 more
openaire   +3 more sources

Associations of clinical, psychological, and socioeconomic characteristics with nicotine dependence in smokers

Scientific Reports, 2021
Cigarette smoking is a risk factor of mortality and morbidity from various cancerous, respiratory, and myocardial diseases. Nicotine dependence is assessed based on the degree of physical dependence.
Yun Su Sim, Seunghee Yoo, Kang-Sook Lee, Chin Kook Rhee, Young Kyoon Kim   +4 more
doaj   +1 more source

Biaxial Testing of Thin Metal Sheets under Non-Proportional Loading Conditions

Metals
During the manufacturing and service of thin metal sheets, different stress states occur, often caused by non-proportional loading conditions. They can lead to localization of inelastic deformations as well as to damage and failure processes.
Steffen Gerke, Fabuer R. Valencia, Michael Brünig   +2 more
doaj   +1 more source