Remerciez-le!

Remerciez @Admin pour avoir partagé cet document gratuitement, de la manière la plus simple, en partageant sur les réseaux sociaux.

StressCheck MASTER GUIDE Release 7 August, 2005 Engineering Software Research

StressCheck MASTER GUIDE Release 7 August, 2005 Engineering Software Research & Development, Inc. Volume 1: User’s Guide Volume 2: Modeling Guide Volume 3: Analysis Guide Volume 4: Advanced Guide 1 Preface 1 What is StressCheck? 1 Why use StressCheck? 2 Who should use StressCheck? 3 StressCheck features 3 How to use this manual? 4 Frequently asked questions about the p-version 4 2 StressCheck Interface 9 Interface Layout 9 Standard File Extensions 18 File Menu 20 Edit Menu 25 Class Menu 31 View Menu 31 Display Menu 37 Tools Menu 48 General Interface Conventions 49 The COM interface 58 3 Model Input 61 Getting started 61 Length Units in StressCheck 62 Geometry Class 63 Mesh Class 64 Section Properties Class 65 Thickness Class 68 Material Class 72 Load/Flux Class 77 Constraint/Temperature Class 81 Master Guide - Table of Contents Solution ID Class 84 p-Discretization Class 85 h-Discretization Class 87 Tables Class 89 Sets Class 91 Parts Class 92 4 StressCheck Solutions 101 Solution dialog window 101 Linear Analysis 103 Solution Activation 105 Nonlinear Analysis 108 Modal Analysis 110 Buckling Analysis 111 Margin Check Analysis 113 Crack Path Analysis 114 Measurement Analysis 115 Adaptivity 119 5 Post-processing Operations 133 Results dialog window 133 Report window 135 Checking the overall quality of the solution 145 Plotting the data of interest 151 Computing minimal and maximal values 159 Computing data at points 163 Properties 170 Fracture Mechanics 172 Extraction using the Formula and Calculator options 174 XY Graphing 182 Setting convergence criteria 189 6 The Handbook Framework 193 Handbook Library 193 Handbook Interface 195 Handbook Analysis 205 Handbook Results 213 Handbook Material 218 Handbook Constraint 219 Constructing a handbook model 220 1 Introduction 1 Geometric Modeling in StressCheck 1 Terminology 2 Important Limitations 4 2 Basic Geometry Construction 5 Length Units in StressCheck 5 Geometry Class 6 3 2D Geometry Creation 25 Geometric construction of 2D objects 25 4 3D Geometry Creation 43 Construction of 3D primitive objects 43 Performing 3D Boolean Operations 60 Performing 3D Clipping Operations 75 Performing 3D Edge Blending Operations 75 Performing 3D Face Blending Operations 81 Example: Construction of a Simple Bracket 82 5 Mesh Creation 91 Introduction to Meshing 91 Mesh Refinement 122 Automeshing 127 MeshSim automesher 128 PAM automesher 148 1 Planar Elasticity 1 Setting the analysis type and choice of units 1 Entering geometric data 2 Entering mesh data 5 Assigning thickness 9 Entering material properties 10 Entering load data 19 Entering constraint data 24 Defining the solution ID 28 Setting discretization parameters 29 Writing an input file 29 Executing a linear analysis 30 Quality assessment and extraction procedures 34 Model problem: Tension strip with a circular hole 46 Principal directions 53 Using beam elements 55 2 Axisymmetric Elasticity 71 Setting the analysis type 71 Entering geometric and mesh data 72 Entering material properties 75 Entering load data 75 Entering constraint data 77 Defining the solution ID 77 Setting discretization parameters 78 Executing a linear analysis 78 Quality assessment and extraction procedures 79 Model problem: Floyd’s vessel 89 3 Plate Bending 97 Setting the analysis type 97 Entering geometric and mesh data 98 Assigning thickness 99 Entering material properties 100 Entering load data 105 Entering constraint data 108 Defining the solution ID 110 Setting discretization parameters 111 Executing a linear analysis 113 Quality assessment and extraction procedures 116 Model problem: Built-in square plate 128 4 Three-Dimensional Elasticity 137 Setting the analysis type 137 Entering geometric and mesh data 138 Entering material properties 144 Entering load data 150 Entering constraint data 157 Defining the solution ID 161 Setting discretization parameters 162 Executing a linear analysis 162 Quality assessment and extraction procedures 165 Model problem: Plate in tension 168 Extrusion 176 Laminate Composite Analysis 186 Thin Solids 196 Global-Local Analysis 206 Post-processing 232 Using 3D-beam elements 244 5 Modal and Buckling Analyses 253 Input data preparation 253 Modal analysis 255 Modal analysis for beams 263 Buckling analysis 267 Using the eigensolver 273 6 Conduction Heat Transfer 277 Input data preparation 277 Model problem: Pipe with cooling fins 278 Verification example 292 Stresses caused by thermal loading 299 1 Nonlinear Analysis 1 Nonlinear materials: Elastic-plastic problems 2 Isotropic Exponential Material Properties 24 General nonlinear analysis 25 Coldwork analysis 44 Fastened structural connections 53 Margin Check analysis 68 Nonlinear heat transfer 78 2 Multi-body Contact 101 3 Fracture Mechanics 119 Computing stress intensity factors 119 Mesh design in the presence of cracks 120 Model problem: 2D-Cracked lug 127 Model problem:3D-Cracked panel 137 Computing the T-stress 142 Computing the J-integral 157 Model problem: Panel with multi-site damage 157 Crack Path Analysis 164 Eigenpairs and generalized intensity factors 178 4 Material Property Fitting 203 Fiber fitting procedure 203 Fitting in 2D 205 Fitting in 3D 209 5 Theoretical Background 213 Mathematical models and their approximate solutions 213 Control of discretization errors 216 Control of modeling errors 222 Hierarchic models for structural plates 226 Meshing and boundary conditions 242 p-discretization: The trunk and product spaces 251 Generalized Hooke’s law in three-dimensions 254 Strains and stresses for planar elasticity 282 Fracture mechanics 283 Eigenpairs and generalized intensity factors 290 Summary of the main points 313 6 Solvers 315 Sequential linear system solver 315 Eigensolver 317 Network License Management 319 What is License Management? 319 License Server and Password Installation 321 License Management Trouble-shooting 321 Error and Warning Messages 323 References 337 StressCheck USER’S GUIDE Release 7 August, 2005 For Windows Operating Systems Copyright 2005 Engineering Software Research & Development, Inc. Volume 1 USER’S GUIDE COPYRIGHT NOTICE Copyright  2005 by Engineering Software Research & Development, Inc. All rights reserved, worldwide. No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the expressed written permission from Engineering Software Research & Development, Inc., 10845 Olive Boulevard, Suite 170, St. Louis, MO 63141-7760, U.S.A. StressCheck includes portions of Raima Data Manager version 3.21. Copyright  1984- 1996 by Raima Corporation. 1605 N. W. Sammamish Road, Suite 200, Issaquah, WA 98027. All rights reserved. StressCheck includes portions of FLEXlm license manager version 6.1. Copyright  1997 by Globetrotter Software Inc., 1530 Meridian Avenue, San Jose, GA 95125. All rights reserved. Tech Soft America (www.hoops3d.com) supplied the following core technology: HOOPS 3D Application Framework  1998 HOOPS 3D Graphic System  1998 Portions of StressCheck are owned by EDS, Inc. Copyright  1998. All rights reserved. StressCheck incorporates MeshSim™ a product of Simmetrix Inc. DISCLAIMER Engineering Software Research & Development, Inc. makes no representations or warran- ties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Further, Engineering Software Research & Development, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Engineering Soft- ware Research & Development, Inc. to notify any person or organization of such revision or change. User’s Guide Chapter 1: Preface 1 1 1 Preface What is StressCheck? From the perspective of designers, StressCheck is a very advanced handbook that provides reliable solutions quickly and conveniently. From the perspective of analysts, StressCheck is a tool for advanced problem solv- ing and a framework for communicating the results to designers. From the perspective of managers, StressCheck is a tool for increased productivity and better design in less time. StressCheck is the first finite element analysis program to emphasize both advanced technological features and ease of use for everyday design and analysis problems. ESRD founders are pioneers in development of p-version FEA and have built the most advanced features available into StressCheck: An advanced represen- tation of surfaces utilizing recently developed technology; hierarchic models for structural plates, including plates made of laminated composites; advanced imple- mentation of superconvergent extraction procedures for the computation of stress intensity factors in two and three-dimensions; efficient and reliable treatment of material and geometric nonlinearities in the context of the p- and hp- versions; multi-body contact including material nonlinearities; the option to employ either Why use StressCheck? 2 Chapter 1: Preface User’s Guide 1 the trunk space or the product space in p-extensions, and capabilities related to the analysis of fastened connections, including cold working analysis. StressCheck improves the reliability of computed information while increasing the productivity of analysts. Recognizing that the analyst’s time is usefully spent only if the computed information is sufficiently accurate and reliable to serve the purposes of engineering decision-making, StressCheck was designed so that the reliability of the data of interest can be readily ascertained. For most analysis tasks the largest cost component, typically more than 90 percent, is the cost of time spent on data preparation and interpretation of the results. Stress- Check was designed so as to minimize this cost. The user interface was designed to permit quick generation of finite element meshes, entry of material properties and boundary conditions. There is an immediate visual feedback confirming that the data is properly uploads/Ingenierie_Lourd/ master-guide.pdf