Massimo Mangifesta Ph.D

Numerical Analysis in Geotechnical and Earthquake Engineering

VisualQ4M - Pre & Post Processor

Pre and Post-Processor Graphical User Interfaces (GUIs) simple and intuitive for Numerical Modeling in Earthquake Engineering in Quad4m code for evaltation the seismic response 1D/2D:

Mesh tool - Generation of the 2D Grid discretization simple or complex and all functions to editing geometry. Read DXF file.

Material Property - Internal database to manage the dinamic properties of the soils (Density, Vs, Vp, Poisson, Damping, Shear Modulus ecc..).

Boundary Conditions - Boundary conditions (x, y, xy or transmitting base) and Dynamic load (x, y or xy).

Input Motions - Signal processor (both in horizontal and vertical component ) with internal database for to analyze and modify the input to be used as a dynamic load in the model.

Quad4m Analisys - Calculation of the dinamic model using code Quad4m in backgruond without the use of prompt DOS.

Graphics Plot - Graphics results (colormap and linearmap), frequency response spectra (Acceleration, velocity, displacement) Amplification factory, Arias Intensity, Energy Density, Response Spectrum Intensity (Housner), Acceleration Spectrum Intensity (Von Thun) ecc...

Export results - Numeric format, image format and DXF file.

Professionalism and Attention to Detail

Seismic Response Study for local amplification, Numerical modeling (Finite Elements) Visual-Q4M, Study and Research in Numerical Analysis of finite differences for Stability Slope Analysis, Software development

Field of Geological Engineering

Mechanical

Investigations of Soil Structure
The geotechnical investigations are carried for construction building civil or industrial buildings and for infrastructure
Monitoring

Evaluating the Stability of Soil
Geotechnical monitoring is carried for examination of failure warning signs for stability and for protecting people and facilities
Geophysical

Investigations of Soil Structure
The Geophysical surveys are applied for subsurface characterization and the study of structures hidden to naked eye
Numerical

Modeling for Seismic Amplification
Numerical modeling is used to tackle complex geological and geotechnical problems by computational simulation static/dynamic

Study and Research Activities

Seismic Local Amplification

Seismic site effects (strong ground motions, seismic hazard and engineering seismology) are related to the amplification of seismic waves in surficial geological layers. The surface ground motion may be strongly amplified if the geological conditions are unfavourable (e.g. sediments).
Soil Structure Resonance

The resonance effect for to soil-structure interaction during earthquakes is an extension of the natural period of vibration occurs as a result of Soil Structure Interaction thus setting the system in resonance. All peak values of motion are amplified ant the structure have a high probability of failure.
Soil 3D Analysis

The purpose of a morphometric analysis is to superimpose a quantitative evaluation of their characteristics to the description of the forms and elements of the survey. Through the morphometry it is possible to elaborate mathematical models that effectively contribute to delineate the evolution of the shapes.
Slope Stability Modeling

Slope stability modeling is performed to assess of the equilibrium conditions. The main objectives are finding endangered areas, investigation of potential failure mechanisms and the designing of optimal slopes with regard to safety.
Underground Tunneling

The modeling of underground tunneling is finalized for the determination of the soil deformations around the digging and at the surface, during the execution of the excavation, in order to verify probable problems of subsidence.
Underground Cavity Model

TThe studies and the reconstructions of the underground cavity models takes place initial with precision (e.g. laser scanner) surveys and subsequent with 3D modeling analysis to define any areas of collapse.

Software and free Tools

Release: 1.0.XXXX
VisualQ4M

Pre and Post-Processor Graphical User Interfaces (GUIs) simple and intuitive for Numerical Modeling in Earthquake Engineering in Quad4m code for evaltation the seismic response 1D/2D.

New version is available for download www.visualq4m.com
- Download
- Software, Seismic, Modeling, EarthQuake
Release: 1.0.5178
FIT Norme Tecniche per le Costruzioni

Multi-channel signal processor with inserting NTC spectra (soil category, topographic category, etc.) in addition to the normalization of the spectrum according to the selected periods.

Coming soon free version for download www.massimomangifesta.it
- Download
- Software, Italian Technical Standards
Release: 1.0.5173
Spectra MC (Spectrum MultiColumn)

Multi Channel signal processor:Acceleration, Velocity, Displacement, Spectral Acceleration, Fourier Transform Spectrum, Acceleration Scale, Spectrum Intensity (Housner).

Coming soon free version for download www.massimomangifesta.it
- Download
- Software, Spectral, Fourier Transform

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