Results 191 to 200 of about 1,244,963 (238)
Some of the next articles are maybe not open access.
Modelling of the flexoelectric effect on rotating nanobeams with geometrical imperfection
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2021Nguyen Chi Tho +4 more
semanticscholar +1 more source
Optimization of slender structures considering geometrical imperfections
Inverse Problems in Science and Engineering, 2006In this article, we present an optimization model which incorporates uncertainty induced by geometrical imperfections. Within the model, geometrical imperfections are represented by means of random fields. The induced uncertainties are then treated using the concept of a convex model.
M. Baitsch, D. Hartmann
openaire +1 more source
European Journal of Mechanics - A/Solids, 2019
This paper makes the first attempt to establish a size-dependent finite element formulation by combining isogeometric analysis and a re-modified couple stress theory (RMCST) for anisotropic elasticity.
Dejin Chen, K. Feng, S. Zheng
semanticscholar +1 more source
This paper makes the first attempt to establish a size-dependent finite element formulation by combining isogeometric analysis and a re-modified couple stress theory (RMCST) for anisotropic elasticity.
Dejin Chen, K. Feng, S. Zheng
semanticscholar +1 more source
Shear behavior of steel plate girders considering variations in geometrical properties
Journal of constructional steel research, 2019This paper presents equations to determine the ultimate shear strength reduction factor of web plate in steel plate girders due to initial imperfection.
A. Ghadami, V. Broujerdian
semanticscholar +1 more source
Hyperbolic Cooling Towers with Geometric Imperfection
1986Geometric imperfection is probably one of the most common and important constructional errors, which occurs in the construction of large thin concrete shells, such as cooling towers.
openaire +1 more source
International Journal of Pressure Vessels and Piping, 2019
The present investigation is devoted to the nonlinear elastic collapse properties of externally pressurized egg-shaped shells under local geometrical imperfections. The shells have nominal major axis, nominal minor axis, and nominal wall thickness of 256
Jian Zhang +4 more
semanticscholar +1 more source
The present investigation is devoted to the nonlinear elastic collapse properties of externally pressurized egg-shaped shells under local geometrical imperfections. The shells have nominal major axis, nominal minor axis, and nominal wall thickness of 256
Jian Zhang +4 more
semanticscholar +1 more source
IEEE Transactions on Robotics, 2010
Actuation redundancy increases and homogenizes the kinematic dexterity and stiffness as well as the force distribution among the actuators of parallel-kinematics machines (PKMs). It also allows for internal prestresses within the PKM without affecting the environment that can potentially be used to account for secondary tasks, such as active stiffness ...
openaire +2 more sources
Actuation redundancy increases and homogenizes the kinematic dexterity and stiffness as well as the force distribution among the actuators of parallel-kinematics machines (PKMs). It also allows for internal prestresses within the PKM without affecting the environment that can potentially be used to account for secondary tasks, such as active stiffness ...
openaire +2 more sources
Worst Geometric Imperfections of Rods and Shells
2018Various forms of geometric imperfections of compressed rods, which are subjected to loss of stability, have been considered in the normative literature. Similar investigations are also intensively carried out for the shells with imperfections, taking into account sub- and post-critical behavior of the systems, as well as an inelastic deformation of ...
openaire +1 more source
Investigation of Geometric Imperfection in Inflatable Aerospace Structures
Journal of Aerospace Engineering, 2004Communication and solar array inflated structures must be deployed to a very precise geometric configuration in order to meet quality requirements of their application. The focus of this paper is on geometric imperfections associated with inflated structures.
openaire +1 more source