Numerical investigation of the pullout phenomenon of a bolt from a steel plate

Based on micromechanics, an elastic-plastic-brittle damage model of concrete beam reinforced with stick steel is proposed by considering the aggregate gradation curve algorithms and the heterogeneity. In the model, the concrete beam reinforced with stick steel is taken as a five-phase composite material that consists of the mortar matrix, coarse aggregate, bonds between mortar and aggregate, steel plate, and the adhesive layer between steel plate and concrete beam. Through the numerical investigation on shear failure of concrete beam reinforced with stick steel under external force, the results show that the model can clearly simulate microscopic plastic yield, and the initiation and extension of crack. The strength of the steel plate is relatively stronger, so it cant enhance the shear capability of the each side of the beam and the concrete beam bears the larger shear stress, which results that a large number of elements, from the supports to the load points, begin to yield. When the strain of the elements exceeds the yield strength, the elements will produce failure until the failure of the whole specimen. The final failure mode of concrete beam reinforced with stick steel is the shear failure.

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Experimental and numerical investigation of low-yield-strength (LYS) steel plate shear walls under cyclic loading

Engineering Structures ◽

10.1016/j.engstruct.2019.109866 ◽

2020 ◽

Vol 203 ◽

pp. 109866 ◽

Cited By ~ 6

Author(s):

Mojtaba Gorji Azandariani ◽

Majid Gholhaki ◽

Mohammad Ali Kafi

Keyword(s):

Cyclic Loading ◽

Yield Strength ◽

Numerical Investigation ◽

Steel Plate ◽

Shear Walls ◽

Steel Plate Shear Walls

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11.41: Numerical investigation of influence of plate yield point on performance of steel plate shear wall

ce/papers ◽

10.1002/cepa.369 ◽

2017 ◽

Vol 1 (2-3) ◽

pp. 3165-3172

Author(s):

Omid Moammer ◽

Ardeshir. Deylami ◽

Khashayar Jafari ◽

Amir Hossein Raisszadeh

Keyword(s):

Numerical Investigation ◽

Yield Point ◽

Steel Plate ◽

Shear Wall ◽

Steel Plate Shear Wall

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Numerical Investigation on Bending Failure of Concrete Beam Strengthened by Bonded Steel Plate

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.671-674.906 ◽

2013 ◽

Vol 671-674 ◽

pp. 906-911

Author(s):

Bing Xu ◽

Da Guo Wang ◽

Zhi Xiu Wang

Keyword(s):

Numerical Investigation ◽

Concrete Beam ◽

Steel Plate ◽

Damage Model ◽

Adhesive Layer ◽

Aggregate Gradation ◽

Brittle Damage ◽

Plastic Yield ◽

Final Failure ◽

Bending Failure

Based on micromechanics, an elastic-plastic-brittle damage model of concrete beam strengthened by bonded steel plate is proposed by considering the aggregate gradation curve algorithms and the heterogeneity. In this model, the concrete beam strengthened by bonded steel plate is taken as a five-phase composite material that consists of the mortar matrix, coarse aggregate, bonds between matrix and aggregate, steel plate, and the adhesive layer between steel plate and concrete beam. Through the numerical investigation on bending failure of concrete beam strengthened by bonded steel plate under external force, the results show that the model can clearly simulate microscopic plastic yield, and the initiation and extension of crack. The strength of the steel plate is relatively lower and it firstly yield and damage, then the bending stress born on the steel plate is transferred to the concrete beam. This results that the inner cracks of concrete beam increase rapidly and coalesce until the failure of the whole specimen. The final failure mode of concrete beam strengthened by bonded steel plate is the ductile bending failure.

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