Productos

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Stress Intensity Factors Calculation of Cracks in Bolted Joints with XFEM - product

INDEX

  1. INTRODUCTION
  2. VALIDATION OF SIMPLE CRACK GEOMETRY- ANALYTICAL SOLUTION
  3. VALIDATION OF SIMPLE CRACK GEOMETRY- FEM RESULTS
    1. ABAQUS CONTOUR INTEGRAL 2D
    2. ABAQUS CONTOUR INTEGRAL 3D
    3. ABAQUS XFEM
    4. BOLTED JOINT SIF ANALYSIS
      1. 2D SIF ANALYSIS
      2. 3D SIF ANALYSIS
      3. COMPARISON
  4. CONCLUSIONS

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ISM2003_PARAM, WTMASS NASTRAN - product

INDICE

  1. Introducción

  2. Contenidos


INTRODUCCIÓN:

Esta documentación establece cómo definir correctamente el parámetro PARAM, WTMASS de MSC.NASTRAN para análisis modal y dinámico, donde no existe una consistencia de unidades de masa y fuerza.

CONTENIDOS:

Se incluyen ejemplos de cómo definir el parámetro de PARAM,WTMASS de MSC.NASTRAN en diferentes sistemas de unidades.

X
ISM3013 Bolt Group 3D - product

INDEX

  1. Introduction

  2. Inputs

  3. Outputs


 

INTRODUCTION:

boltBOLT GROUP 3D is a software tool to calculate shear and tensile forces for each fastener in riveted or bolted joints. The method is valid only for components that are sufficiently stiff in the joint area. For the static strength analyses the centroid of the fastener group is determined taking into account the allowable forces of the fasteners

  • FastLoad per bolt is obtained immediately 
  • Graphical Formatted Representation: Graphics with bolt load distribution obtained as result are ready to include in documentation
  • Validation: A load check is done as validation of input/output data

INPUTS:

Input data required for the analysis is:

  • Properties of Riveting: This information has to be filled for each type of rivet (or fastener) that appears in the Bolt Group distribution.
    1. Name of the rivet: internal name use in the Excel Sheet.
    2. Allowables: shear, tension rivet and tension nut allowables.
  • Position, type and effectiveness: complete one row for each rivet or fastener (50 rivets maximum):
    1. Rivet number: from 1 to the number of rivets.
    2. Rivet Type: same name as appears in 1.
    3. Coordinates: position of the rivet. The excel sheet supports only rivets that are located in the xy plane with z-coordinate = 0.0 and the z-axis as tension axis.
    4. Effectiveness (Yes/No): user has to consider if the rivet admits shear and tension.
  • Applied Loads:
    1. Application Point: position where the load is defined
    2. Load: force and moment components.

OUTPUTS:

When the parameters are filled, BOLT GROUP 3D tool automatically calculates loads per rivet, and graphical distribution of bolts and loads is shown when pressing button “Refresh Graphs”. A simple check can be done comparing Load Check cells with the Input Load to know if the results fulfil balance of forces and moments.

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ISM2006 Plasticity - ABAQUS - product

INDEX

  1. Introduction

  2. Contents


INTRODUCTION:

This documentation presents the different ways to model the plasticity behavior in ductile metals and its implementation in the FEM ABAQUS Code.

All concepts are based in the engineering tension test, which is widely used to provide basic design information on the strength of materials and as an acceptance test for the specification of materials.

Abaqus

  • Self-contained: Documentation is self-contained so that there is no need to find extra information to understand the concepts .
  • Application Tool: An excel application tool is enclosed with the documentation to obtain directly Abaqus input data.
  • Examples: Application examples can be found in documentation to apply concepts in a practical way

CONTENTS:

Contents included in documentation are the following:

  1. Material Strength paramenters
  2. Material modelling in Abaqus
  3. Defining material data in Abaqus environment
  4. DFEM modelling guidelines for non-linear  analysis with Abaqus
  5. Post-processing of non-linear plasticity analysis
  6. Example of application

 

X
ISM1001 Composite Laminate - product

INDEX

  1. Introduction

  2. Inputs

  3. Outputs


INTRODUCTION:

ISM1001_ComLam (Composite Laminate) is a spreadsheet tool for the analysis of composite laminates.

The tool has the following features:

  • Average properties of the laminate (several laminates simultaneously is allowed)
  • Stiffness matrices
  • Plain Strength analysis
  • Failure analysis: “Yamada-Son and Puk” or Tsai-Hill

INPUTS:

Input data required for the analysis is:

  • Lamina properties
  • Stacking
  • Applied Loads (fluxes)

OUTPUTS:

  • Stiffness matrices
  • Average properties of the laminate
  • Stress-Strain (lamina and laminate direction)
  • Reserve Factor by lamina

ISM1001_ComLam_View

X
ISM3007 Cross Section - product

INDICE

  1. Introducción

  2. Entradas

  3. Salidas


 

INTRODUCCIÓN:

ISM3007_CrossSectionProperties es un programa desarrollado en Excel para el cálculo de propiedades de secciones. La hoja Excel está basada en la hoja desarrollada por Yakpol, Sectprop

  • Sencilla: Hay distintas posibilidades para la introducción de la geometría de la sección 
  • Visual: La sección introducida se representa en un gráfico para poder comprobar la geometría visualmente
  • Hoja en formato: Los resultados se muestran en tablas con formato para poder utilizarlos directamente en la documentación

ENTRADAS:

Las secciones pueden definirse por tres métodos:

  • Por nodos
  • Por capas
  • Por segmentos (perfiles de sección delgada)

SALIDAS:

Las propiedades obtenidas por el programa son:

  • Propiedades definidas en los ejes paralelos a los ejes de referencia
    • Área
    • Centroide
    • Inercias
    • Módulos resistentes elásticos
  • Propiedades definidas en ejes principales de inercia
    • Ángulo entre eje principal de inercia y eje de referencia
    • Inercias
    • Módulos resistentes elásticos
  • Centro de cortadura (solo para secciones definidas por segmentos)
  • Constante de torsión (solo para secciones definidas por segmentos)
  • Constante de alabeo (solo para secciones definidas por segmentos)

CROSS_SECTION_GRAL

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ISM3005 Plastic Bending - product

INDEX

  1. Introduction

  2. Inputs

  3. Outputs


INTRODUCTION:

BESTA (BEnding Stress Analysis) is a software tool to obtain the ultimate moment for metallic sections. It also calculates the Reserve Factor for sections subjected to axial and bending stress. This free version is limited to 6 points-section analysis

  • Easy: Easy and clear input data.
  • Fast: Analysis is fast.
  • Formatted Output: Results are obtained in a formatted output ready to be implemented in documents.

INPUTS:

Required input for BESTA are the geometry points defining the section, the material curve defined by points and the applied loads.

OUTPUTS:

Outputs obtained with BESTA are:besta4_1besta4

  1. Total section area
  2. Inertia moments around the principal axes parallel to X axis and Y axis
  3. X and Y coordinates of the Centre of gravity (c.o.g) of the section.
  4. Y coordinate of neutral fiber
  5. Ultimate Moment of the section.
  6. Bending Ultimate Strength ( FBu)
  7. Reserve Factor (RF) for the applied Moment and Axial load
  8. Strain and stress distribution along section height
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ISM2005_CALCULO DESPLAZAMIENTOS RELATIVOS CON NASTRAN - product

INDICE

  1. Introducción

  2. Contenidos


INTRODUCCIÓN:

Con esta documentación se pretende definir los parámetros necesarios para realizar el cálculo de desplazamientos relativos entre dos puntos en modelos NASTRAN

CONTENIDOS:

En la presente documentación se incluye lo siguiente:

  1. Preparación del modelo
  2. Cálculo de desplazamientos
  3. Obtención de resultados