The Strength of Laser Welded Web Core Steel Sandwich

(PDF) Influence of general corrosion on buckling strength The Strength of Laser Welded Web Core Steel Sandwich

The strength of a web-core steel sandwich plate is potentially reduced in a corrosive environment. This study is dedicated to the influence of a reduction in the thickness of the plates as a result of general corrosion on sandwich plate bucklingBending Properties of Laser Welded Web-Core Steel This paper presents a detailed discussion of the bending properties of laser welded web-core steel sandwich plates and the influence of weld width on stiffness and strength. The over-hanging three point bending test was conducted on the laser welded web-core steel sandwich plates with various welds width by self-designed device, together with the finite element simulations.

Bending Properties of Laser Welded Web-core Steel

The stiffness and strength of the sandwich plates increased with the increasing of weld width, especially for the weld width lower than 60 % thickness of the core plate. It is necessary to consider the weld width in the design and evaluation of the stiffness and strength of the laser welded web-core sandwich Bending Properties of Laser Welded Web-core Steel Sandwich The Strength of Laser Welded Web Core Steel Sandwich The stiffness and strength of the sandwich plates increased with the increasing of weld width, especially for the weld width lower than 60 % thickness of the core plate. It is necessary to consider the weld width in the design and evaluation of the stiffness and strength of the laser welded web-core sandwich Cited by 23Publish Year 2012Author Jasmin Jelovica, Jani Romanoff, Sören Ehlers, Petri VarstaFatigue strength assessment of laser stake welds in web The Strength of Laser Welded Web Core Steel Sandwich The web-core sandwich panel has an inhomogeneous core as it consists of unidirectional web plates that are periodically distributed and connected to the face plates by laser stake-welded T-joints. The joint has two crack-like notches on each side of the weld.

Cited by 23Publish Year 2013Author Darko Frank, Jani Romanoff, Heikki RemesThe Strength of Laser Welded Web-Core Steel Sandwich The Strength of Laser Welded Web Core Steel Sandwich

All steel laser welded sandwich plates have found their position in the marine and land vehicles. To implement such design accurately, knowledge about its strength properties and the influence of laser weld dimensions on strength is necessary. In this paper, the over-hanging three point bending tests were conducted on the laser welded web-core steel sandwich plate with various weld dimensions The Strength of Laser Welded Web Core Steel Sandwich Cited by 7Publish Year 2014Author Xiao Xia Jiang, Liang Zhu, Ji Sen Qiao, Yi Xiong Wu, Zhu Guo Li, Jian Hong ChenImages of the strength of laser Welded web Core Steel Sand imagesThe Stiffness of laser stake welded T-joints in web-core The Strength of Laser Welded Web Core Steel Sandwich The purpose of this paper is to describe experiments carried out on laser stake welded T-joints of web-core steel sandwich structures. A special test setup was developed to measure the shear The Strength of Laser Welded Web Core Steel Sandwich Experimental and Theoretical Study of Sandwich Panels with The Strength of Laser Welded Web Core Steel Sandwich This study presented a new form of composite sandwich panels, with steel plates as facesheets and bonded glass fiber-reinforced polymer (GFRP) pultruded hollow square tubes as core. In this novel panel, GFRP and steel were optimally combined to obtain high bending stiffness, strength, and good ductility. Four-point bending test was implemented to analyze the distribution of the stress, strain The Strength of Laser Welded Web Core Steel Sandwich

Fatigue Crack Growth Rate in Laser-Welded Web Core The Strength of Laser Welded Web Core Steel Sandwich

The all-metal web-core sandwich structure consists of two face plates stiffened by one-directional system of web plates. These web core sandwich structures are used in many structural applications such as ship hulls, offshore platforms, bridge decks, and industrial platforms. However, the stress variation caused by the service loadings can be a determinant factor for crack initiation and The Strength of Laser Welded Web Core Steel Sandwich Fatigue Crack Growth Rate in Laser-Welded Web Core The Strength of Laser Welded Web Core Steel Sandwich The all-metal web-core sandwich structure consists of two face plates stiffened by one-directional system of web plates. These web core sandwich structures are used in many structural applications such as ship hulls, offshore platforms, bridge decks, and industrial platforms. However, the stress variation caused by the service loadings can be a determinant factor for crack initiation and The Strength of Laser Welded Web Core Steel Sandwich Fatigue strength assessment of laser stake welds in web The Strength of Laser Welded Web Core Steel Sandwich Fatigue strength assessment of laser stake-welded web-core steel sandwich panels. Fatigue & Fracture of Engineering Materials & Structures, Vol. 36, pages 724-737. DOI 10.1111/ffe.12038. Frank Darko; Remes, Heikki; Romanoff, Jani. 2013. On the slope of the fatigue resistance curve for laser stake-welded

Fatigue strength assessment of laser stake welds in web The Strength of Laser Welded Web Core Steel Sandwich

Fatigue strength assessment of laser stake-welded web-core steel sandwich panels. Fatigue & Fracture of Engineering Materials & Structures, Vol. 36, pages 724-737. DOI 10.1111/ffe.12038. Frank Darko; Remes, Heikki; Romanoff, Jani. 2013. On the slope of the fatigue resistance curve for laser stake-welded Fatigue strength assessment of laser stake welds in web The Strength of Laser Welded Web Core Steel Sandwich In general, sandwich panels consist of homogeneous core material that carries a shear force and face plates that carry a bending moment. The web-core sandwich panel has an inhomogeneous core as it consists of unidirectional web plates that are periodically distributed and connected to the face plates by laser stake-welded T-joints.Fatigue strength assessment of laser stake welds in web The Strength of Laser Welded Web Core Steel Sandwich The web-core sandwich panel has an inhomogeneous core as it consists of unidirectional web plates that are periodically distributed and connected to the face plates by laser stake-welded T-joints. The joint has two crack-like notches on each side of the weld.

Fatigue strength assessment of laser stake-welded T-joints The Strength of Laser Welded Web Core Steel Sandwich

Apr 01, 2015The fatigue strength of laser stake-welded T-joints at five million cycles agrees well with other steel joints except in the case of 0.05-mm rounding. The proposed design curve for the 0.05-mm approach based on the maximum principal stress hypothesis and with a slope of 3 [17] , [18] appears overly conservative for this type of joint.Fatigue strength assessment of laser stakewelded webcore The Strength of Laser Welded Web Core Steel Sandwich This paper investigates the fatigue strength assessment of webcore steel sandwich panels. The production of these structures is made possible by laser stake welding. The investigation in this study considered two series of panels, one being an empty steel structure and the other filled with in situ polyurethane foam in order to increase the The Strength of Laser Welded Web Core Steel Sandwich Influence of general corrosion on buckling strength of The Strength of Laser Welded Web Core Steel Sandwich Influence of general corrosion on buckling strength of laser-welded web-core sandwich plates Title Influence of general corrosion on buckling strength of laser-welded web-core sandwich plates Author(s) Jelovica, Jasmin; Romanoff, Jani; Remes, Heikki Date 2014 Language en Pages p. 342-350 Department Sovelletun mekaniikan laitos

Influence of weld stiffness on buckling strength of laser The Strength of Laser Welded Web Core Steel Sandwich

Oct 01, 2012This paper investigates the influence of weld rotation stiffness on the global bifurcation buckling strength of laser-welded web-core sandwich plates. The study is carried out using two methods, the first is the equivalent single-layer theory approach solved analytically for simply supported plates and numerically for clamped plates.Jelovica, J., Romanoff, J., Ehlers, S. and Varsta P The Strength of Laser Welded Web Core Steel Sandwich This is an author-generated copy of the publication Jelovica, J., Romanoff, J., Ehlers, S. and Varsta P. Influence of weld stiffness on buckling strength of laser-welded web-core sandwich plates.Laser-welded corrugated core steel sandwich bridge decksgeometric properties on fatigue-relevant stresses in laser-welded corrugated core steel sandwich panels, Welding in the world. Vol 63, pp 1801-1818, August 2019. PAPER II P. Nilsson, M. Al-Emrani and S.R. Atashipour. Fatigue-strength assessment of laser-welds in corrugated

Laser-welded corrugated core steel sandwich panels for The Strength of Laser Welded Web Core Steel Sandwich

Generally, glue of the adhesive joint in sandwich structures is much softer and weaker than the face or core materials with its elastic modules ranging among 110% of steel and strength about 510% of the steel or carbon fiber reinforced plastics (CFRP).Laser-welded corrugated core steel sandwich panels for The Strength of Laser Welded Web Core Steel Sandwich Upper left Corrugated core steel sandwich panel, from Paper I. Upper right Corrugated core sandwich cell subjected to global sectional force and moment, created by the author. Bottom left Image of a core-to-face joint, photo by the author. Bottom right Laser-welding image, photo Kleven Verft AS. Chalmers Reproservice Gothenburg, Sweden, 2017Laser-welded corrugated core steel sandwich panels for The Strength of Laser Welded Web Core Steel Sandwich Upper left Corrugated core steel sandwich panel, from Paper I. Upper right Corrugated core sandwich cell subjected to global sectional force and moment, created by the author. Bottom left Image of a core-to-face joint, photo by the author. Bottom right Laser-welding image, photo Kleven Verft AS. Chalmers Reproservice Gothenburg, Sweden, 2017

Laser-welded web-core sandwich plates under patch

Jan 01, 2007In the DNV guidelines for laser-welded sandwich panels, the thickness requirement is based on linear elastic stress; see Refs. , . Detailed 3D FE modelling of laser-welded web-core sandwich plates is very time consuming because of differences of scale between the laser weld and the plate itself; see Fig. 1. This scale effect requires a high The Strength of Laser Welded Web Core Steel Sandwich The Effect of Weld Geometry on the Stiffness of I-Core The Strength of Laser Welded Web Core Steel Sandwich The purpose of this paper is to describe experiments carried out on laser stake welded T-joints of web-core steel sandwich structures. A special test setup was developed to measure the shear The Strength of Laser Welded Web Core Steel Sandwich The Effect of Weld Geometry on the Stiffness of I-Core The Strength of Laser Welded Web Core Steel Sandwich This paper presents the influence of the weld widthroot gapand weld offset of the T-joint to the overall stiffness of sandwich plate with finite element simulations. From the results of finite element calculation and some of experimental verification we can see:(1) For this structure, welding joint damage occurs before the face plate buckling.(2) Among the factors weld widthgap and weld offset The Strength of Laser Welded Web Core Steel Sandwich

The Effect of the Secondary Bending Moment on the

In the case of web core sandwich panels used in ship structures has been observed a pronounced effect of the secondary bending moment on laser welded joints. Considering this, the paper presents an analysis of the fracture strength of laser welded joints of a web core sandwich structure, due to the effect of secondary bending moment.Ultimate strength of corroded web-core sandwich beamsTherefore, ultimate strength experiments were carried out in three-point bending for beams with different corrosion exposure times, i.e. one and two years. Standard laser-welded web-core sandwich beams are studied and different corrosion protection systems

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