Extreme Loading® for Structures (ELS) software offers a new advanced level of nonlinear dynamic structural analysis, which allows users to efficiently study structural failure and retrofitting strategies in historic masonry structures from any number of possible extreme loading events including earthquake, blast, and progressive collapse.
Extreme Loading for Structures Software (ELS) offers a new advanced level of nonlinear dynamic structural analysis, which allows users efficiently to study structural failure from any number of actual or possible extreme events. Unlike traditional FEM software, users can easily model high-rise structures composed of reinforced concrete, steel composite and other structures with all as-built and as-damaged details.
Extreme Loading® for Structures Software or ELS, is an advanced non-linear structural analysis software tool designed specifically for structural engineers. ELS allows structural engineers to study the 3D behavior of structures through both the continuum and discrete stages of loading. This includes static and dynamic loads such as those generated by a blast, seismic events, impact, progressive collapse, and the wind. Unlike many structural analysis software tools which are based on the Finite Element Method (FEM), ELS utilizes a non-linear solver based on the Applied Element Method (AEM).
This allows ELS is to automatically analyze structural behavior during elastic and inelastic modes including the automatic yielding of reinforcement, detection, and generation of plastic hinges, buckling & post-buckling, crack propagation, membrane action & P-Delta effect, and separation of elements. The resulting debris and impacts with structural elements are also automatically analyzed and stress redistribution is inherently calculated.
What’s New with Extreme Loading for Structures:
ASI's Director of Engineering, Dr. Ahmed Khalil, Ph.D., P.E. will be speaking at the Earthquake Expo on Tuesday, February 8th at 12:30PM in Keynote Theatre 2. He will be presenting on how Engineering Simulations to Save Lives during disaster response. Traditional...
Recent events of bridge collapses, e.g. in Genoa (Italy) on August 14th 2018 and in Kolkata (India) on September 4th 2018, have focused the public interest on the infrastructures’ safety for their consequences in terms of fatalities and injuries, but also of economy...
We’re happy to announce the release of our Advanced Structural Analysis Software, Extreme Loading for Structures (ELS) Version 8.0! ELS is used by structural engineers and researchers around the world to study the effects of blast, progressive collapse, wind,...
Model Progressive Collapse In Ten Minutes or Less:
In this short video, we take you through the process of creating a small reinforced concrete structure to illustrate how quickly you can model and analyze a detailed reinforced concrete structure for progressive collapse in Extreme Loading® for Structures Software (ELS).
ELS provides an economic nonlinear dynamic structural analysis solution for use in performance based design allowing users to efficiently model and analyze structures.
Model reinforcement, steel sections, and prestressing details commonly assumed or neglected to be fully integrated into the model with ease, providing significant improvements to the model and its results.
Applied loads are virtually unlimited and may be sequenced in a multi-hazard approach with staged loading to simulate repeated or a chain of events, including earthquakes, fire, blast, impact, tsunami, high wind, and progressive collapse.
Accelerate the research performed on shake tables with full scale virtual that can predict local and global failure, opening the door to substantial design improvements, and moving shake tables to validation, post optimization.
The modeler included with Extreme Loading® for Structures (ELS) provides engineers with a comprehensive and intuitive style-based modeling interface that allows users to quickly and easily create 3-D solid element structural models for nonlinear static or dynamic analysis structures.
The Applied Element Method (AEM) based solver in Extreme Loading® for Structures is a derivative of the Finite Element Method (FEM) and the Discrete Element Method (DEM). AEM is capable of performing both linear and nonlinear, static or dynamic analysis that follows the behavior of structures through separation, collision, and collapse.
The frame by frame Extreme Loading for Structures Results Viewer allows the user to view and perform a number of post-processing tasks in order to analyze results and export presentation materials.
Applications for Extreme Loading for Structures
Never before, have structural engineers had a structural analysis software tool that is capable of fully analyzing structures under extreme loads.
Abstract: The debris field of earthquake-induced building collapse can block or reduce the capacity of adjacent sidewalks and roads, hinder emergency and evacuation operations, and therefore adversely influence the seismic resilience of a community. To consider the...
Explosions bring a serious risk of damage or collapse when are produced inside buildings or in the close proximity. As the hazard intensity and possible effects are difficult to quantify, the structure should have the capacity to survive with inherent damages, thus preventing the progressive or disproportionate collapse.
The evaluation of the seismic vulnerability of historical masonry buildings is a difficult task due to the uncertainty regarding structural characteristics and construction techniques, mechanical properties, and pre-existing damage. Hence, there is a need for an efficient computational technique for analyzing such structures and providing reliable results for a large number of buildings within a reasonable time frame.
ASI's paper on the progressive collapse of the Polcevera Viaduct Bridge in Genoa, Italy will be available free for the next 50 days from Engineering Structures. ASI Engineers modeled up the bridge and simulated the collapse using its Extreme Loading for Structures...
ASI will be attending the 2019 Structure Congress in Orlando, FL from April 24-27, 2019. ASI sessions this year focus on the Protective Design for Structures and industrial facilities. Below are the Sessions that ASI is participating in. ASI Engineers will also be...
Nonlinear Dynamic Alternative Load Path Analysis of 10-story Concrete Shear Wall Flat Plate Building
Ahmed Khalil, Ph.D., P.E. will be presenting a paper entitled, " Nonlinear Dynamic Alternative Load Path Analysis of 10-story Concrete Shear Wall Flat Plate Building", at Structures Congress 2019, Saturday, April 27th from 8:00 - 9:30 AM in the Celebration 1-2 Room....
Dr. Ahmed Amir Khalil, PhD, PE, Structural Consultant at Applied Science International, LLC (ASI) will be delivering the Opening Plenary Speech at the Forensic Engineering 8th Congress in Austin, Texas from 8:30AM-10:00AM on Friday November 30th,...
Structures Congress 2018: Advanced Simulation of Blast Response of Reinforced Concrete Slabs with Varying Material Strength
Tarek Kewaisy, PhD, PE, PMP will be presenting a paper entitled, "Advanced Simulation of Blast Response of Reinforced Concrete slabs with Varying Material Strength" at Structures Congress 2018 on Saturday, April 21 from 10:00 AM - 11:30 AM in room 202CD...
Structures Congress 2018: Nonlinear Dynamic Impact Analysis of Collapsed Debris Using Applied Element Method
Ahmed Khalil, Ph.D., P.E., M. ASCE will be presenting a paper entitled, "Nonlinear Dynamic Impact Analysis of Collapsed Debris Using Applied Element Method" at Structures Congress 2018 on Friday, April 20 from 9:30 AM - 10:30 AM in room 202B Abstract:...
Structures Congress 2018: Multi-hazard Modeling of Vapor Cloud Explosion for Offshore Structures using AEM
Ahmed Khalil, Ph.D., P.E., M. ASCE will be presenting a paper entitled, "Multi-hazard Modeling of Vapor Cloud Explosion for Offshore Structures Using AEM" at Structures Congress 2018 on Thrusday, April 19 from 1:30 PM - 3:00 PM in room 203BC Abstract: The...