چکیده مقاله
An explosion is a sudden, fast and accidental energy that can be classified as physical,nuclear or chemical in nature Explosive materials can be solid, liquid and gas, but theexplosion of solid materials usually has the greatest effect in terms of the released force Also, explosives can be divided in terms of primary and secondary forces, which areapplied to the structure The magnitude and distribution of explosive loads on structuresis a function of the following three factors 1 The characteristics of explosives including the type of explosives, the weight of theexplosives 2 Location of the source of the explosion 3 The pressure from the explosionIn this process, TNT explosives are first detonated at a certain distance in the air on areinforced steel beam that is connected to a concrete slab with a stud, and from theinstantaneous impact energy with extremely high pressure and extremely high speed thatis produced when the explosives explode It is used to analyze the effects caused by theexplosion on this beam It is worth noting that despite the high compressive strength ofmore than 100 MPa, high durability and low permeability, concretes show a very brittlebehavior Adding fibers to these concretes, in addition to improving mechanical propertiessuch as tensile strength, compressive strength, and resistance to impact and wear,significantly increases the formability, flexibility, and energy absorption capability of theseconcretes In this article, the Concrete Damaged Plasticity model is used to model thebehavior of fiber concrete Tensile and compressive properties of concrete are separatelyintroduced to the software, and for steel beams and studs, steel is elastic along with theJohnson Cook hardness model, and also the Johnson Cook damage criterion has been usedagain to predict damage in steel components The analysis is dynamic and based on theexplicit dynamic algorithm
کلیدواژهها
نویسندگان
Hassan Ghermezi
Department of Civil Engineering, Najafabad Branch, Islamic Azad University,Najafabad, Iran
شیوه ارجاع
Ghermezi, Hassan,1403,Simulation and Stress Analysis of ExplosionProcess on Concrete Slab Connected to SteelBeam by Studs Using Finite Element Method,Second International Conference on applied researches in civil engineering, architecture and urban planning
ارائهشده در
مجموعه مقالات دومین کنفرانس بین المللی تحقیقات پیشرفته در مهندسی عمران، معماری و شهرسازی20 آبان 1403