Results 11 to 20 of about 654,561 (303)
, 2021 It is generally accepted that an optimal arch has a funicular (moment-less) form and least weight. However, the feature of least weight restricts the design options and raises the question of durability of such structures. The work presented here shows that arches of least weight are just a sub-set of constant stress arches discussed here. Building on
Wanda Lewis
openaire +4 more sources
Stress–energy connection and cosmological constant problem [PDF]
Physics Letters B, 2011 We study gravitational properties of vacuum energy by erecting a geometry on the stress-energy tensor of vacuum, matter and radiation. Postulating that the gravitational effects of matter and radiation can be formulated by an appropriate modification of the spacetime connection, we obtain varied geometro-dynamical equations which properly comprise the ...
Durmuş A. Demir, Demir, Durmuş Ali
openaire +5 more sources
, 2021 Constant stress rate tests on PEEK perfromed at different temperatures.
Aulova, A (via Mendeley Data)
core +2 more sources
Predicting fatigue crack growth rate in a welded butt joint: The role of effective R ratio in accounting for residual stress effect [PDF]
, 2009 A simple and efficient method is presented in this paper for predicting fatigue crack growth rate in welded butt joints. Three well-known empirical crack growth laws are employed using the material constants that were obtained from the base material ...
Servetti, Guido, Zhang, X.
core +1 more source
Mokslas: Lietuvos Ateitis, 2017 This paper presents first results of noncohesive soil direct shear tests with hydrostatic pressure. To reach this aim, it was chosen the Baltic Sea Klaipėda sand, due to granulometry composition and particles shape.
Tadas Tamošiūnas, Šarūnas Skuodis
doaj +1 more source
Time dependent dielectric breakdown and stress induced leakage current characteristics of 8Å EOT HfO2 N-MOSFETS [PDF]
, 2010 In this work we present the time dependent dielectric breakdown (TDDB) characteristics of LaO capped HfO2 layers with an equivalent oxide thickness of 8Å. The layers show maximum operating voltages in excess of 1V. Such high reliability can be attributed
Ragnarsson, Lars-Ake +8 more
core +1 more source
On the ratchet analysis of a cracked welded pipe [PDF]
, 2011 This paper presents the ratchet limit analysis of a pipe with a symmetric crack in a mismatched weld by using the extended Linear Matching Method (LMM). Two loading conditions are considered: i) a cyclic temperature load and a constant internal pressure;
Ure, James Michael +7 more
core +1 more source
Nihon Kikai Gakkai ronbunshu, 2014 The transformation-induced stress relaxation and stress recovery of TiNi shape memory alloy (SMA) in the stress-controlled subloop loading were investigated based on the local variation in temperature and transformation band on the surface of the SMA ...
Kohei TAKEDA +2 more
doaj +1 more source
Triangular prism finite element based on piecewise constant stress approximations
Magazine of Civil Engineering, 2023 The study object is a three-dimensional triangular prism finite element based on piecewise constant approximations of stresses. The use of such a finite element makes it possible to obtain more accurate stress values, especially at the boundaries of the ...
Tyukalov Yury
doaj +1 more source
, 2020 Heat stress is usually assessed using thermal comfort indices (TCIs) that calculate integrated values of temperature, humidity, wind speed and solar radiation.
Ji, Boyu +5 more
core +1 more source