scholarly journals Experimental Study on Vertical Shear Behaviors of an Immersion Joint with Steel Shear Keys

2019 ◽  
Vol 9 (23) ◽  
pp. 5056
Author(s):  
Yong Yuan ◽  
Jianhui Luo ◽  
Haitao Yu
Keyword(s):  
Transverse Shear ◽  
Shear Test ◽  
Compressive Load ◽  
Shear Stiffness ◽  
Development Stage ◽  
Shear Capacity ◽  
Vertical Shear ◽  
Shear Load ◽  
Shear Keys ◽  
Shear Behaviors

The vertical shear behaviors of an immersion joint with steel shear keys subjected to multidirectional loads are investigated in this paper. An experiment of an immersion joint model is carried out. Two kinds of compression–shear tests of the joint are considered in this experiment. The first kind of compression–shear test applies a specific vertical shear load and five different levels of longitudinal compressive loads on the joint. An additional compression–vertical shear destruction test is also conducted under the minimum longitudinal compressive load, wherein the vertical shear load is incrementally increased until failure of the joint. The other kind of compression–shear test is a bidirectional shear test, in which both the longitudinal compressive load and the transverse shear load are fixed, and the vertical shear load is gradually increased until reaching a target value. The results show that the shear force–displacement curves of the joint in any loading case can be divided into two stages: a non-linear development stage and a quasi-linear development stage. The vertical shear stiffness of the joint is found to increase with increasing longitudinal compressive load, and the existence of a transverse shear load enhances this effect. The ultimate shear capacity of the joint is smaller than the sum of the shear capacities of all vertical steel keys. In addition, the failure of the joint appears at the shear key on one sidewall of the joint.

scholarly journals Determination of Transverse Shear Stiffness of Sandwich Panels with a Corrugated Core by Numerical Homogenization

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1976
Author(s):  
Tomasz Garbowski ◽  
Tomasz Gajewski
Keyword(s):  
Transverse Shear ◽  
Shear Stiffness ◽  
The Finite Element Method ◽  
Homogenization Procedure ◽  
Plate Structures ◽  
Corrugated Board ◽  
Energy Equivalence ◽  
The Stability ◽  
Global Stiffness Matrix

Knowing the material properties of individual layers of the corrugated plate structures and the geometry of its cross-section, the effective material parameters of the equivalent plate can be calculated. This can be problematic, especially if the transverse shear stiffness is also necessary for the correct description of the equivalent plate performance. In this work, the method proposed by Biancolini is extended to include the possibility of determining, apart from the tensile and flexural stiffnesses, also the transverse shear stiffness of the homogenized corrugated board. The method is based on the strain energy equivalence between the full numerical 3D model of the corrugated board and its Reissner-Mindlin flat plate representation. Shell finite elements were used in this study to accurately reflect the geometry of the corrugated board. In the method presented here, the finite element method is only used to compose the initial global stiffness matrix, which is then condensed and directly used in the homogenization procedure. The stability of the proposed method was tested for different variants of the selected representative volume elements. The obtained results are consistent with other technique already presented in the literature.

Transverse shear stiffness of structural core sandwich

1994 ◽  
Vol 27 (3) ◽  
pp. 317-329 ◽  
Author(s):  
Tomas Nordstrand ◽  
Leif A. Carlsson ◽  
Howard G. Allen
Keyword(s):  
Transverse Shear ◽  
Shear Stiffness

Experimental Study on Shear Behavior of Perfobond Connector with Boot Shaped Slots

2019 ◽  
Author(s):  
Zhanchong Shi ◽  
Qingtian Su ◽  
Xinyi He ◽  
Quanlu Wang ◽  
Kege Zhou ◽  
...  
Keyword(s):  
Failure Modes ◽  
Shear Stiffness ◽  
Shear Capacity ◽  
High Shear ◽  
Test Results ◽  
Precise Location ◽  
Construction Problem ◽  
Circular Holes ◽  
New Type ◽  
Push Out

<p>In order to solve the construction problem of perforating rebars’ precise location and it’s getting through the circular holes for the the conventional perfobond connector, a new type of perfobond connector with boot shaped slots was proposed. This new type perfobond connector has the advantage of convenient construction and pricise location. Three groups of push-out tests with nine specimens were carried out to study the shear capacity of the new type perfobond connector. The effect of the number and the spacing of boot shaped slots on failure modes, shear capacity, peak slip and shear stiffness were mainly studied. The test results show that the new type of perfobond connector with boot shaped slots has a high shear capacity and a good ductility, it could be widely applied on the connection between the steel and the concrete structures.</p>

scholarly journals FORMULAE TO PREDICT SHEAR STIFFNESS AND YIELDING STRENGTH OF HORIZONTAL DIAPHRAGMS REINFORCED WITH SHEAR KEYS ALONG PANEL JOINTS

2014 ◽  
Vol 79 (702) ◽  
pp. 1137-1146
Author(s):  
Masahide MURAKAMI ◽  
Yoshiharu AZUMI ◽  
Atsuo TAKINO ◽  
Shigefumi OKAMOTO ◽  
Takeshi NAKAGAWA ◽  
...  
Keyword(s):  
Shear Stiffness ◽  
Shear Keys

Composite Laminate Stiffnesses and Their Sensitivities

1994 ◽  
Author(s):  
Bodo Geier ◽  
Rolf Zimmermann
Keyword(s):  
Composite Materials ◽  
Transverse Shear ◽  
Composite Laminate ◽  
Shear Stiffness ◽  
Efficient Algorithms ◽  
Search Procedure ◽  
Object Function ◽  
Stiffness Matrices ◽  
Derivatives Of ◽  
Constrained Function

Abstract The great number of possible stacking orders to form laminates suggests to apply optimization, more frequently than usual, in the design of structures made of composite materials. One of the columns upon which optimization of structures is built is the mathematical search procedure for locating a minimum (or maximum) of a constrained function. Efficient algorithms will require the evaluation of derivatives of the object function as well as of the constraints. In that context the sensitivities of laminate stiffness matrices may be required. In order to meet such a requirement the derivatives with respect to both ply thicknesses and ply angles, of laminate stiffnesses, including transverse shear stiffness, will be presented in this report.

scholarly journals Factors contributing to the transverse shear stiffness of bolted cold-formed steel storage rack upright frames with channel bracing members

2019 ◽  
Vol 136 ◽  
pp. 50-63 ◽  
Author(s):  
Nima Talebian ◽  
Benoit P. Gilbert ◽  
Nadia Baldassino ◽  
Hassan Karampour
Keyword(s):  
Transverse Shear ◽  
Shear Stiffness ◽  
Cold Formed Steel

scholarly journals Determining the transverse shear stiffness of steel storage rack upright frames

2012 ◽  
Vol 78 ◽  
pp. 107-116 ◽  
Author(s):  
Benoit P. Gilbert ◽  
Kim J.R. Rasmussen ◽  
Nadia Baldassino ◽  
Tito Cudini ◽  
Leo Rovere
Keyword(s):  
Transverse Shear ◽  
Shear Stiffness

The Effect of Transverse Shear in a Cracked Plate Under Skew-Symmetric Loading

1979 ◽  
Vol 46 (3) ◽  
pp. 618-624 ◽  
Author(s):  
F. Delate ◽  
F. Erdogan
Keyword(s):  
Stress Intensity ◽  
Transverse Shear ◽  
Stress Intensity Factors ◽  
Orthotropic Materials ◽  
Shear Load ◽  
Intensity Factors ◽  
Mode Iii ◽  
Shear Loads ◽  
Elasticity Solutions ◽  
Symmetric Loading

The problem of an elastic plate containing a through crack and subjected to twisting moments or transverse shear loads is considered. By using a bending theory which allows the satisfaction of the boundary conditions on the crack surface regarding the normal and the twisting moments and the transverse shear load separately, it is found that the resulting asymptotic stress field around the crack tip becomes identical to that given by the elasticity solutions of the plane strain and antiplane shear problems. The problem is solved for uniformly distributed or concentrated twisting moment or transverse shear load and the normalized Mode II and Mode III stress-intensity factors are tabulated. The results also include the effect of the Poisson’s ratio and material orthotropy for specially orthotropic materials on the stress-intensity factors.

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