Demolition Analysis: Applied Element Method (AEM)

Applied Element Method (AEM)

The Applied Element Method (AEM) is a type of numerical analysis utilized in predicting the continuum and discrete behavior of structures.  AEM modeling adopts the concept of discrete cracking allowing it to automatically track structural collapse behavior passing through all stages of loading: elastic, crack initiation & propagation in tension-weak materials, reinforcement yield, element separation, element contact and collision, as well as collision with the ground and adjacent structures.

AEM was born at the University of Tokyo as part of Dr. Hatem Tagel Din's research studies on the analysis and visualization of structures subjected to the extreme loading conditions generated during earthquakes.  Since 1995 the research, development and validation of AEM has been an ongoing project at Applied Science International, LLC and academic institutions around the world.  This ongoing effort has resulted in the completion and publication of hundreds of validation tests and more than fifty research papers certifying the breakthroughs in structural analysis achieved by the Applied Element Method. 

Research has verified the accuracy of AEM for: elastic analysis; crack initiation and propagation; estimation of failure loads for reinforced concrete structures; reinforced concrete structures under cyclic loading; buckling and post-buckling behavior; nonlinear dynamic analysis of structures subjected to severe earthquakes; fault-rupture propagation; nonlinear behavior of brick structures; and the analysis of glass reinforced polymers (GFRP) walls under blast loads.

It is the implementation of AEM based structural analysis in Extreme Loading® Technology that makes it a cost efficient and effective tool in the prediction and planning of structural demolition by implosion, wrecking ball, and deconstruction.  AEM analysis is capable of performing both linear and non-linear analysis that follows the behavior of structures through separation, collision, and collapse while automatically calculating:

  • Plastic Hinge Formation
  • Buckling and Post-buckling
  • Crack Generation
  • Separation of Elements
  • Collision and Collapse
Applied Science International