بایگانی برچسب: failure

In this tutorial Simulation Smooth Particle Hydrodynamic explosion over the RC slab in Abaqus-Damage investigation- has been studied.RC slabs, as the principal components for engineering structures, have been widely used all over the world. However, blast loading, especially from contact explosion, can cause significant damage to the target structures. By ...

در این ویدئو به شبیه سازی انفجار به روش SPH در نزدیکی یک دال بتنی در نرم افزار آباکوس- بررسی پارامتر تخریب بتن- پرداخته ایم. مدلسازی به صورت سه بعدی بوده و پارت بتنی به صورت سالید و ماده تی ان تی نیز به صورت یک مکعب تغییر شکلپذیر ترسیم ...

In this tutorial Low-velocity impact behaviour of RC slab strengthening with CFRP strips in Abaqus has been investigated.Reinforced concrete slabs are structural members that are com-monly used in constructions. Slabs are designed by considering the effects of both vertical static and dynamic loads. Impact load is a kind of impulsive ...

in this tutorial Simulation air explosion over ceramic plate with lattice aluminum core in Abaqus has been investigated.The ceramic plates,two aluminum plates at the above and bottom and the lattice aluminum core are modeled as deformable three dimensional part. You can see a figure of the assembled parts at below ...

در این ویدئو به شبیه سازی انفجار در هوا روی یک سازه سرامیکی دارای هسته مشبک آلومینیومی در نرم افزار آباکوس پرداخته ایم.مدل شامل یک صفحه سرامیکی ،دو صفحه آلومینیومی در بالا و پایین و یک هسته مشبک در میان صفحات می باشد. تمامی پارت ها به صورت سه بعدی ...

In this tutorial Simulation CFRP retrofit of concrete circular column in Abaqus has been investigated. A considerable number of existing reinforced concrete columns do not meet present needs in terms of strength, ductility and durability. Repair and/or strengthening may be needed when columns are damaged under external loads, such as ...

In this tutorial dynamic simulation of tensile test of a steel piece under axial deformation in Abaqus has been investigated. A three dimensional part like below figure is used to model steel geometry To model failure behavior of the steel piece shear and ductile damage with evolution, isotropic plasticity with ...

In this tutorial Numerical Simulation on Fracturing of Rock under Blast Using Coupled Finite Element Method and Smoothed P article Hydrodynamics has been investigated.Nowadays, drill and blast are still a common excavation technique for rock foundations and  underground caverns in the fields of hydro power, transportation and mining because these  ...

In this tutorial Numerical simulation modeling of high velocity impact applied to reinforced concrete panel has been investigated. It is well known that concrete is much stronger in terms of compression than in tension. Because of its high com-pressive strength, and to enhance its tensile strength, tensile reinforcements are added ...

In this tutorial Simulation Bearing Capacity Failure of a Strip Foundation in Abaqus base on the Sam Helwany’s book has been studied. Because of the symmetric condition, two dimensional shell part is used for both soil and foundation. You can see a figure of schematic at below Elastic material for ...

In this tutorial Simulation of hollow steel piles subjected to buried blast loading(CEL explosion) in Abaqus has done.A pile is a load bearing component of a structure that transfers the structural load to the hard soil or rock underground. The modern human civilization and smart infrastructure depend largely on the ...

In this tutorial simulation granite stone cutting by using a rigid cutter in Abaqus has been investigated.The granite stone is modeled as three dimensional part ,the cutter and supporter are modeled as rigid body.The Abaqus CAE contains some material model for brittle materials,but they are suitable to simulate the large ...

In this tutorial Simulation concrete slab cutting by using a rigid cutter in Abaqus has been investigated.Concrete cutting is a process of controlled sawing, drilling and removal of concrete performed by skilled operators using special saws that use diamond impregnated blades. Unlike the old-fashioned dusty jack hammer method, modern concrete ...

در این ویدئو به شبیه سازی قدم به قدم برش یک قطعه بتنی با استفاده از یک کاتر صلب در نرم افزار آباکوس پرداخته ایم. برای برش بتن روش های مختلفی وجود داره که از جمله آنها می توان به برش با کاتر،برش با عمود بر و برش با سیم ...

In this tutorial simulation concrete beam-column joints in Abaqus has been studied. Strengthening of existing reinforced concrete structures is now a major part of the construction activity all over the world. The RCC structures constructed across the world are often found to exhibit distress and suffer damage, even before service ...

In this tutorial Simulation steel beam damage under cyclic loading in Abaqus standard has been investigated.Under cyclic loading conditions such as those introduced by earthquake  ground motions, the local buckling is initiated in the compression flange.  However, it disappears and reappears in subsequent cycles. The beam is modeled as three ...

در این ویدئو به شبیه سازی قدم به قدم بارگذاری تکراری روی یک تیر به صورت استاتیکی و بررسی آسیب بوجود آمده در آن در نرم افزار آباکوس پرداخته ایم. مدلسازی به صورت سه بعدی بوده و برای تیر از المان شل استفاده شده است. متریال مورد استفاده برای تیر ...

In this tutorial simulation milling process in Abaqus has been investigated.Milling is a cutting process that uses a milling cutter to remove material from the surface of a workpiece. The milling cutter is a rotary cutting tool , often with multiple cutting points. As opposed to drilling, where the tool is ...

در این ویدئو به شبیه سازی قدم به قدم فرآیند بغل تراشی فولاد با مته و میله فرز انگشتی در نرم افزار آباکوس پرداخته ایم. در این مثال از دو ابزار مته و میله فرز انگشتی در دو شبیه سازی جداگانه استفاده شده است. در مثال اول برای براده برداری ...

In this tutorial Simulation of p-section concrete beams under contact explosion(CEL) conditions in Abaqus has been studied. Reinforced concrete bridges are the most common type of bridges and have a simple structure, low cost and long durability. Among these bridges, reinforced concrete bridges composed of p-section bridge components are among the ...

Production of tomatoes in Europe in 2014 was about 16.8 million tonnes, 9th in terms of agricultural production value.Unfortunately, fresh fruit is very susceptible to internal mechanical damage during harvesting, packaging and transport, and the quality can be substantially reduced by poor handling. Internal damage may lead to accelerated rot ...

در این ویدئو به شبیه سازی مرحله به مرحله انفجار زیر آب به روش CEL و بررسی اثر آن روی یک لوله آلمینیومی در نرم افزار آباکوس پرداخته ایم.لوله به صورت پارت شل سه بعدی، هوا و تی ان تی و آب به صورت اویلری و سه بعدی مدل شده اند. ...

In this tutorial Prediction model of depth of penetration for alumina ceramics under garnet impact in Abaqus has been studied .The target and projectile were modeled as three dimensional parts .The JH-2 constitutive model was proposed to describe the response of ceramic materials to large strain rate. The JH-2 constitutive model ...

در این ویدئو به شیه سازی قدم به قدم برخورد سنگ ریزه(Garnet) به جسم سرامیکی و بررسی آسیب پدید آمده در نرم افزار آباکوس پرداخته ایم. برای مدلسازی از فضای سه بعدی استفاده شده است. جسم سرامیکی به صورت پارت سالید سه بعدی  و جسم گارنت به صورت پارت سالید سه ...

In this tutorial Simulation SPH explosion over masonry wall (micro model) in Abaqus and damage investigation has been studied.The wall is modeled with concrete bricks and concrete beam as three dimensional parts.The TNT part is modeled as sphere solid part. You can see a figure of this simulation at below To ...

در این ویدئو به شبیه سازی مرحله به مرحله انفجار به روش SPH بر روی یک دیوار بنایی در نرم افزار  آباکوس پرداخته ایم. مدل سازی به صورت سه بعدی بوده و تمامی اجزا به صورت تغییر شکلپذیر مدل شده اند. دیوار با استفاده از تعدادی ردیف آجر مدل شده است ...

In this video Simulation steel drilling process in Abaqus has been investigated.Drilling process is one of the most required machining techniques that accounts for more than 40 % of the total material removal processes and especially has a high frequency of use in aerospace industries . It is significant to ...

در این ویدئو به شبیه سازی فرآیند سوراخکاری قطعه فولادی با مته در نرم افزار  آباکوس پرداخته ایم.سوراخکاری نوعی فرآیند برش است که با استفاده از مته یک سوراخی با مقطع دایره‌ای روی قطعات ایجاد می‌شود. مته نوعی ابزار برش است که از مقاطع مختلف تشکیل شده که با سرعت گردش ...

In this tutorial crack growth simulation of bone under three points bending in Abaqus has been studied. Structural analysis of bones is now actively studied by many researchers using the finite-element method (FEM) to better understand the mechanism of bone fractures. Most previous studies, however, only obtained distribution patterns of stress or ...

در این ویدئو آموزشی به شبیه سازی مرحله به مرحله رشد ترک در یک قطعه استخوان دو بعدی در آباکوس تحت خمش سه نقطه ای پرداخته ایم. در این مثال استخوان به صورت یک پارت دو بعدی طراحی شده است و متریال الاستیک به همراه خواص آسیب مورد نیاز در تحلیل ...

In this tutorial Simulation three dimensional fatigue phenomenon in Abaqus by using Paris law has investigated.  Metal fatigue is the process by which a material is slowly damaged by stresses and strains that are less than those needed to actually break the material apart. For example, a steel wire might be ...

در این ویدئو به شبیه سازی قدم به قدم رشد ترک با در نظر گرفتن پدیده خستگی تحت بار گذاری سیکلی در نرم افزار آباکوس پرداخته ایم. خستگی فلزات (Metals Fatigue) وقتی اتفاق می افتد که فلز تحت تنش تکراری یا نوسانی قرار گیرد که منجر به شکست ناگهانی قطعه می گردد. ...

In this tutorial Simulation bone drilling process by using explicit method in Abaqus has been investigated.The drilling of bone is ubiquitous in many fields of surgery including orthopaedics, neurosurgery, plastics and reconstructive, craniomaxillofacial and ear nose and throat.A cylindrical tunnel is typically prepared in bone using a surgical drill-bit to accommodate ...

در این ویدئو به شبیه سازی قدم به قدم سوراخ کاری استخوان با مته در نرم افزار آباکوس پرداخته ایم.بی‌حرکت‌سازی استخوان شکسته، که غالباً بر اثر سوانح و کهولت سن به‌وجود می‌آید، برمبنای ایجاد سوراخ با مته و اتصال پلاک‌های که به آنها پیچ می‌شوند، انجام می‌گیرد. کاشت ایمپلنت در دندان ...

This tutorial presents a numerical analysis of the resistance and stiffness of an aluminium-concrete beam with steel connectors.  Aluminium-concrete structures are less known than steel and concrete composite structures, they do, however, have a lot of  applications.Contemporary designers should look for new solutions supporting sustainable construction.Aluminium-concrete composite structures have a ...

Progressive collapse refers to the failure of one or a group of key structure load-carrying members that gives rise to a more widespread failure of the surrounding members and partial or complete structure collapse. It is defined as the spread of an initial local failure from element to element resulting ...

در این ویدئو به شبیه سازی مرحله به مرحله تخریب پیش رونده در یک سازه بتنی چند طبقه تحت بار انفجار در نرم افزار آباکوس پرداخته ایم. مدلسازی به صورت سه بعدی بوده و سازه شامل پارت سه طبقه بتنی و میلگرهای مدفون شده می باشد. سازه بتنی به صورت سالید ...

In this tutorial three point bending simulation of concrete slab reinforced with bars and FRP in Abaqus has been investigated.The widespread successful use of composite materials in the automotive, naval and  sporting goods industries has resulted in a technology transfer to civil infrastructure  applications. Fiber-reinforced polymers (FRP) are impacting the international ...

در این ویدئو به شبیه سازی قدم به قدم  تست خمش سه نقطه ای دال بتنی تقویت شده با کامپوزیت اپوکسی شیشه در  نرم افزار آباکوس پرداخته ایم. مدلسازی به صورت سه بعدی بوده و دال بتنی به صورت پارت سالید سه بعدی و ماده اف آر پی یا همان Epoxy-Glass ...

Recent rise in terrorist activities around the globe have attracted attention of engineers and scientists towards the vulnerability of buildings and infrastructure to blast loads. The consequent effects of these loads may range from minor damage to structural collapse accompanied by huge loss of life. The masonry, which is the ...

The study of interaction between two impacting bodies, known as impact dynamics or terminal ballistics has many crucial applications. Bullet impact on armor, occupant and pedestrian safety during automobile accidents, tool drop on aircraft wing, are few examples where impact dynamics plays an important role. An in-depth understanding of deformation ...

With the growing use of composites in military, air vehicles and naval structures, sporting goods and the power industry, the comprehension of impact mechanism and dynamic behavior is critical to composite designers and end users. A wealth of knowledge has been published on dynamic impact response of composite materials and ...

در این ویدئو به شبیه سازی مرحله به مرحله  برخورد سرعت پایین به ورق کامپوزیتی(S glass/Polyester) در نرم افزار آباکوس پرداخته ایم. مدلسازی به صورت سه بعدی بوده و ورق کامپوزیتی به صورت شل سه بعدی و ضربه زننده نیز با استفاده از یک پارت شل ریجید ایجاد شده اند. برای ...

In this tutorial Simulation fatigue phenomenon of the steel plate in Abaqus by using direct cyclic step has been investigated.Two dimensional part for steel and wire part to define initial crack length has been used . Elastic material couple with traction separation law to consider the fracture and crack growth in ...

Insulated concrete sandwich panels are comprised of two outer concrete wythes and an inner layer of foam insulation. They have been increasingly used because of their advantages of light weight and energy efficiency. Various shear connectors can be used to connect the two outer concrete wythes. More recently, Fiber-Reinforced Polymer ...

Explosions, whether accidental or planned, can cause significant damage to the built infrastructure and result in fatalities to occupants of buildings in close proximity to the center of explosion. The increase in the number of terrorist attacks over the past few decades has led to growing concerns about the performance ...

Sandwich panels are widely used in lightweight construction especially in aerospace industries because of their high specific strengths and stiffnesses. In the service life of a sandwich panel, impacts are expected to arise from a variety of causes. Debris may be propelled at high velocities from the runway during aircraft ...

Honeycomb sandwich structures are broadly used in the aerospace and automotive industries, particularly as energy-absorption materials, and there are limited applications in civil infrastructure, such as highway bridges and building construction. Due to their unique and advantageous properties such as high mechanical performance per unit weight and high energy-absorption capability, ...

Nowadays, a high risk of terrorist attacks is observed. Bombing attacks are the most frequent terrorist activities. Unfortunately, public infrastructure such as airports and railway stations, shopping centres, offices, financial and government institutions are highly exposed to such attacks. There were also several cases of such attacks with thousands of ...

Blast incidents in recent years show that most of the terrorist attacks on public structures were explosions within short stand-off distances. In this context, columns are the most vulnerable structural components and their failure is the primary cause for progressive collapse in framed structures. On the other hand, many of ...